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SMITHSONIAN: MISCELLANEOUS COLLECTIONS VOLUME 114 (WHOLE VOLUME)

SMITHSONIAN METEOROLOGICAL TABLES

SIXTH REVISED EDITION

PREPARED BY

ROBERT J. LIST Meteorologist, U. S. Weather Bureau

SMITHSONIAN INSTITUTION PRESS CITY OF WASHINGTON

Y & os

Smithsonian Publication 4014 Sixth revised edition published 1949 Fourth reprint issued 1968

NOV 1 6 2000 *)

LIBRARIES

PREFACE

The rapid development of .the science of meteorology during the past two decades has made necessary a complete revision of both the scope and con- tents of the Smithsonian Meteorological Tables. A. Wetmore, Secretary of the Smithsonian Institution, which has been publishing these tables since 1852, and F. W. Reichelderfer, Chief of the Weather Bureau, recognized this need. A steering committee of Weather Bureau meteorologists, con- sisting of H. Wexler, Chairman, R. A. Allen, J. E. Caskey, Jr., P. F. Clapp, R. N. Culnan, R. D. Fletcher, J. R. Fulks, C. Harmantas, L. P. Harrison, W. C. Jacobs, J. K. McGuire, J. Namias, and H. W. Norton, was formed to make recommendations concerning the new revision and to serve in an advisory capacity. Funds for the preparation of the manuscript were trans- ferred by the Weather Bureau to the Smithsonian Institution, and under the supervision of L. B. Aldrich, Director of the Astrophysical Observatory, work on the new manuscript was started. It is a pleasure to acknowledge both the administrative cooperation and scientific information received from Mr. Aldrich.

In preparing this volume, every effort has been made to obtain the latest and most authoritative data available, and to follow as far as possible the most recent recommendations of the International Meteorological Organiza- tion. Suggestions were also solicited from the various branches of the armed forces concerned with meteorological problems, from the several universities having meteorology departments, and from other interested individuals and organizations. Explanations, sources of data, methods of computation, and pertinent references accompany all tables. No material on meteorological codes and symbols, descriptions of meteorological stations, or climatological data have been included in this revision.

It would be impossible to acknowledge all the cooperation and assistance received in the preparation of this volume. A particularly large debt of gratitude is owed to L. P. Harrison, Chief of the Technical Investigations Section of the Weather Bureau, who has unhesitatingly given so much of his time and attention to this project, and without whose mature judgment it would have been impossible to complete this work in its present form. Grateful acknowledgments are also due to J. A. Goff and S. Gratch of the Towne Scientific School of the University of Pennsylvania for contributing all the material for tables 84-92 and for furnishing the computations for table 72; to S. Fritz of the Weather Bureau for his assistance in preparing the section on radiation; to W. D. Lambert and J. A. Duerksen of the Coast and Geodetic Survey for information concerning gravity and other geodetic

ili

iv PREFACE

problems; to E. W. Woolard of the Nautical Almanac Office of the Naval Observatory for astronomical and related data; and to the many experts consulted at the National Bureau of Standards. Computations for several of the longer tables were made by the Machine Tabulation Unit of the Weather Bureau. Special data or computations for individual tables were furnished by R. Gunn, I. F. Hand, W. E. Howell, L. D. Kaplan, J. B. Leighly, T. H. MacDonald, and R. B. Montgomery, all of which have added greatly to the value of this volume. Permission to reproduce copyrighted material has been kindly granted by the American Air Filter Company, Inc., the McGraw-Hill Book Company, Inc., Prentice-Hall, Inc., and the Reinhold Publishing Cor- poration ; all such material is acknowledged at its point of insertion in the text. Thanks are also due Mrs. G. B. Morgan for her invaluable assistance in per- forming many of the computations and in typing the manuscript. Rosert J. List

WaAsHINGTON, D. C. September 30, 1949.

NOTE TO FIRST REPRINT

Opportunity has been taken in this reprint to correct the few errors that have been discovered in these tables since the original printing. EptrTor. February 1958

NOTE TO SECOND REPRINT

This reprint corrects three or four errors discovered in these tables since the first reprinting. EpIitor. March 1963

NOTE TO THIRD REPRINT

This reprint is without change in the text, since no errors have been brought to our attention since the second reprinting. Epiror. April 1966

CONTENTS

PAGE HE ACCY Meee ree eerie eae Sena ee ies te a a chert 8 gmotemeemnmaale eke Be a aes ill MIRCUCHOM Teme Nee Ret ee ee ents GoeL Cele te See OE cee a 1 Wonversioiror Wilts OF leneth ANG Mass. fe ce else eee ss 8 1 Standard gravity for reducing barometric observations........ 3 Io LOLI ag Oh Sie ral gel? Se det aa ear ne a aoe AI ce ae Ed + SEcTION I. CONVERSION TABLES TABLE

eas OLIMEESIOrE PAC hORS 12.0, Sere i WO ne Ee ioc NE ae dh sit 9

2. Approximate absolute, centigrade, Fahrenheit, and Reaumur tem- pPeRatuce Scalesus...wh Sint seis jah See Geaise leet se ae eer eS 6 17 Sembahienheititoy.centignade sv, ys arcs dyays' tata s/asera oie Sebctarstelbrawieshs 20 een Cenbteradesto) Malrenleits =. <<). te carl ons) is esateen seid ew etOwt s,s 2 25 5. Differences Fahrenheit to differences centigrade................ 29 6. Differences centigrade to differences Fahrenheit................. 29

7. Centigrade degrees per kilometer to Fahrenheit degrees per 1000 PC eo obese ass = 331-b 0! 3)s, e.Sianeha INET SERS TS SO ERAS os Sos a's 30

8. Fahrenheit degrees per 1000 feet to centigrade degrees per kilo- MIGECT a 1s-si's a 05.5 BAREIS aes GEER s et en's FOTIA Bees REY aE as 30 Papinches of mercury, to miillibans, .2aqee aes osc os SeRRRIes Cataens «6 31 Pea Muallibars fo inches of Mercury... 5 Muaeiia + :a@iaiisi« elem «caeueint » s 38 PP Viillimeters of nencury to maillibarsey ji. scion ac ae ad stgeeas cae 51 #2; -Millibans\to millimeters of mercury yen Vell. 0s oes oo. 5) Roaptniciies, to Mmillineters ss et.) asl | ea ih orc ace wide eh iSiaee eater 72 PeNinitimeters tomehese ss oo eats ee ce ae ke meee 79 SEMBEICEE COMEMELERS cy Bovine ay cet hare maid ea wes bse wld Ma ERS 92 REMEIMPCLCTcn (OULCCE < Soci arc POA ie teh ats tala ny Ear shee 20s Pa a 94 Seer seacute ammlestorilometers. fa. fe aes eee des ue a nelle e 96 Be miciometers sto Statute: files. hc. «cals aisieatore-n.ne's > salves Sl ie ame ee 98 Seem atitical miles: to, statute Miles ./4.sj01 6 cic «5 4 2s detoie aussie ee oats 100 mi aotatite miles to natitical miles ogc 5,0: 6.3): 45,016 4.cieis eee ea paolie ie os 100 pie Nattical miles, to kilometers. 4.1.04. «jesse siti ie soe se cl oeiaale< o's 0's 101 pomeolometers to nattical milesiz,. .. «0:1 cdnia cei asses oeiblins «Obes eo 0a 101 Esa Mays to decimals of a year and angles... sic cscsacaeees eu ses 0 102 Fe. TREES ERS Ta) FoR DS TN armen et er a ER aca era Py ae ame 106 25. Hours, minutes, and seconds to decimals of a AY) shisha ait evans ta lela ee 106 26. Decimals of a day to hours, minutes, and seconds...............-. 107 27. Minutes and seconds to decimals of an hour.................-- 107

Vv

vi SMITHSONIAN METEOROLOGICAL TABLES

TABLE PAGE 28. Avoirdupois pounds and ounces to kilograms.....+..-+++++++++- 108 29. Kilograms to avoirdupois pounds and ounces.......+++++++ee ees 108 BoaeGrains fo. orams: 5... ees spades sce ote oe nee ae tee 109 SiemGrams tO STalnS. . Fs ee. sar ses sere els oe oe + or See aince elena 109 32. Miles per hour to knots, meters per second, feet per second, kilo-

meters per hour, feet per minute........... see ee eee ee eees 110 33. Meters per second to miles per hour, feet per second, kilometers per

hour, knots, feet per minute. . 1.2.00. % cm emietienianee qe oe 12 34. Kilometers per hour to knots, miles per hour, meters per second,

Feet. Per SECON. o/s cis leie sca Win a. t's ciel ee ete Bie slele sere ey eee 113 35. Knots to miles per hour, meters per second, feet per second, kilo-

meters per hour, feet per TainUte \. i). ee eet ele ale =) oie cet ere cal 115

Section II. WIND AND DYNAMICAL TABLES

30; -Beatttort wind stale: soa. Pn2s daastedte tone scenes ee eee een 119 37. Geostrophic wind, constant pressure surface: 100 geopotential

MEER CONLOUNS: dares 45H s ewes Hevesi oeine We omen ae ee 120 38. Geostrophic wind, constant pressure surface: 200 geopotential foot

COMPOULS, « 5. RIS oP RR es, Peas Seeveieer 122 39. Geostrophic wind, constant level surface: Three millibar isobars,

air density: like wm? 6.05) Been 55 52% sie sha 2 bah os eee areectre rate 124 4OerGradienttwand) 72509): oil, Le ah ae tee ae 126 41. Coriolis parameter and latitudinal variation..................2++ 130 Senulnertial MOON: \s.5 x-2.0.2,4 5 os 25 dc oe eee ee oe 130 45, Rossby-s: long-wave: formulas... edeer ere eee fos te eee 131

Section III. BAROMETRIC AND HYPSOMETRIC TABLES

44. Capillary ‘correction for mercurial barometers. os. <%- 1s ceues 132 45-46. Reduction of the mercury column to standard temperature (e+- PIGMOUOI) inte toons en: nis; #0 OiaRer Ree eke ahve ie ae oro Te eee 136 45. Reduction of the mercury column to standard temperature, English UARITES Sys Sisal Lie, «aha wicjete evel t ates Meoitaa ces ea eeereeer nee eee ne eee 139 46. Reduction of the mercury column to standard temperature, metric MARLUES! 20.30. «paca e oieietermle clase tet srmeclare nls ait a o).< COREE ogee ae 164 47. Corrections to reduce barometric readings to standard gravity..... 200

48. Determination of height by the barometer and reduction of pressure to fixed levels Section IV. GEOPOTENTIAL AND AEROLOGICAL TABLES

49-51. Relation between geopotential and geometric height (explana-

HOM). 5 ya's 4 o.chr el RgMe Nos, & aL ty To cat.2 eed eee ee 217

CONTENTS Vii

TABLE PAGE 49. Factors for computing the relation between geopotential and geo-

TELE ECD 0S) (1 6) aie a eA ae iY al Pad ol A 219 eu: Geomerrie meters to SCOpoOtential MElELS.. <c)cujeccteniens ins 5 eles oss 220 Si; Geopotential meters to geometric meters, ... 0.0.2... 08 os so 0500s: 222 Be ACCOM COMPILATIONS 5:5). aie maaiticisnshe aoe se latte bre 16 0 ow oop 224 53-56. Thickness and mean adjusted virtual temperature of strata be-

tween standard isobaric surfaces (explanation)............. 241

53. Thickness in geopotential meters of strata between standard isobaric surfaces as a function of mean adjusted virtual temperature.. 242 54. Thickness in geopotential feet of strata between standard isobaric surfaces as a function of mean adjusted virtual temperature.. 248 55. Mean adjusted virtual temperature between standard isobaric sur-

faces as a function of thickness in geopotential meters....... 254 56. Mean adjusted virtual temperature between standard isobaric sur- faces as a function of thickness in geopotential feet.......... 255 57-62. Relation between pressure change and geopotential change (e-- FiO, 4201 RCE ae ORR 2 Be ears WA ven) EE be ANS Aone 256 57. Change in height (geopotential meters) corresponding to 1 millibar chine ANSPTESSUTE 15 49.4.0 4 «acted Des ee CD BS) 257 58. Change in height (geopotential feet) corresponding to 1 millibar chalig ena pressure sauiqcrs SRA Pee see eae a wes 258 59. Change in height (geopotential feet) corresponding to a change in PrESSUre GE Ofie-tenth’ Of air ic Of mercury... 2... 2 = «- 250 60. Change in pressure (millibars) corresponding to a change in height Gi wpm eopotentiall MaCters 5 uk Sere ilote ss ope Sieun oie ce clint aie eas 260 61. Change in pressure (millibars) corresponding to a change in height aLwOeceonotential eet. yA. Ha. AA SRR ls VOI. 261 62. Change in pressure (inches of mercury) corresponding to a change incheicht of 0lGeopotentialfeet +279 SIG OME POP eer es 262

SecTloN V. STANDARD ATMOSPHERE AND ALTIMETRY TABLES

63. NACA standard atmosphere, lower atmosphere..........-...... 265 Gra CeaNestandardiabnospheres ii: 222 o.. sys k a's 5, hee 50s ahs Scale tas 268 Bom Nitimieter Setting, COMpiutation TaChOrS.. wc hc vee des 5 5's Sle cies ere .o8 269 66. NACA standard atmosphere altitude-pressure table.............. 273 67. Correction of altimeter readings for mean temperature of the air OMIT cee Peer Rhee ie cite aes lela ead hala NE, Ciacetel cream taint is 274 68. NACA standard atmosphere, tentative properties of the upper at- POS PMR ea sre Meg ie car cht has ett ta ees ll i ad 280

Ra Ne ei tye Lh A hes ANTE a > ey ec el f Oe 2 atl ana 8 ea 285

vili SMITHSONIAN METEOROLOGICAL TABLES

Section VI. THERMODYNAMIC TABLES

TABLE PAGE 70. Thermodynamic constants ....-....seeese eee e eee e re seeess 289 (i WMD TSretta ator geeh rR eR Oren corer tery iar top ator 290 72. Virtual temperature increment of saturated air.......+.++++++++- 295 73. Saturation mixing ratio over water. ...... see eee eee eee e teeters 302 74. Saturation mixing ratio OVer 1C€... 6... eee eee ee ee te eee ees 306 75. Potential temperature ......... 6. cece cree reece cece eee eees 308 76. Two-sevenths power of pressure..... 1. esse esse ee ener tent eens 314 77. Two-sevenths power of (1000/p)...----.eeeee ee ee cence ee eeees 316 78. Temperature and pressure along saturation pseudoadiabats........ 318 79. Pseudoadiabatic lapse rate: Water stage..........-.+-eeeeeeeee 323 80. Pseudoadiabatic lapse rate: Ice stage......-.. esse eee eee eens 324 81. Rate of condensation in ascending moist air..........-+ ee eee eee 325 82. Precipitable water in a saturated pseudoadiabatic atmosphere. ..... Shay) 83. Lifting condensation level data..........--- sees eee erence cece 328 84-92. Thermodynamic properties of moist air (explanation)......... ey 84. Compressibility factor of moist air........ 2. eee eee eee eee ee ees 332 85; Enthalpy residual of moist air... 0... 000625 soe. eons Hole oeblneem on 334 86. Entropy residual of moist air.............. en Jk ee ee 336 G7= Mixing entropy of moist iain. 2. . .icccc a «+ dayeeinielis sa ayehaietarae 338 88. Isobaric specific heat residual of moist air..........-+---+eeeee 339 BE MH eICOEMICIEM taf gna Si a 204 « + arene 4's) srs, else ates 2 oie ke gaaegueanentpoyspetaiciatc tee 340 Pe EMCO CLE TIE of gic) aussi. jeiseas voisiouslsyopeucioheshnianeuess Siete 2s oie eee 341 OLariroperties Of water VApOL st. cni-id oo cacqeiicwie) vetvs Peg sige 341 92. Properties of condensed water, latent and specific heats........... 343

Section VII. HYGROMETRIC AND PSYCHROMETRIC TABLES

93. Definitions and specifications of water vapor in the atmosphere.... 347

94-97. Saturation vapor pressure tables (explanation) ............... 350 94. Saturation vapor pressure over water, metric units.............. 351 95. Saturation vapor pressure over water, English units.............. 354 96. Saturation vapor pressure over ice, metric units..............00- 360 97. Saturation vapor pressure over ice, English units................ 362 98-99. Reduction of psychrometric data (explanation) .........00005 365

98. Reduction of psychrometric observations: Centigrade temperatures. 368 99. Reduction of psychrometric observations Fahrenheit temperatures. . 369 100. Ratio of the saturation vapor pressure over water to that over ice at

thie Same: temperature, «2c 2 sacchtee © or 5 |e Oona 370 101. Ratio of the saturation vapor pressure over ice to that over water at

EieNsaine teitiperature’ .. ream. dete hoe cone ce eee 370 102 Dew “point conversion chartliegoy.es 8. oon eee 371

103. Variation of saturation vapor pressure over water with temperature. 372

CONTENTS ix

TABLE PAGE 104. Variation of saturation vapor pressure over ice with temperature. . 372 105. Saturation vapor pressure over water of salinity 35%0............ 373 106. Equilibrium supersaturation over solution droplets.............. 374 107. Relative humidity over saturated salt solutions.................. 380 108-109. Density of pure water vapor at saturation (erplanation)...... 381 108. Density of pure water vapor at saturation over water............. 382 109. Density of pure water vapor at saturation over ice............64. 384

SecTION VIII. TABLES OF MISCELLANEOUS PHYSICAL PROPERTIES OF AIR AND AIR-BORNE PARTICLES

110.-\Composition of'dry air up'to about 25' kilometers)... ves... 389 Pee nde OF metractonrot dire hee we teeth es tee ame Salers als eid ele se 52 389 2 Pay cloctty OF soundum aire ts tes Me reeves fies SPO. I eles. 390 113. Viscosity and thermal conductivity of air and diffusivity of water WAPOMS Ma salen aMrernoh ld, SIG: Petaene oe Ue eb ae nn we ee OE NS DS 394 114. Terminal velocity of fall for distilled water droplets in stagnant air. 396 HS. “Size and characteristics of air-barrie’solids! $008.18. Vee. 397 MiG.) sizes Ol atmosphere: particles. {S20 ee Se COMERS. I HOI Ss. 398 if7. Evaporation of freely falling water*drops ss 20.3 i). ae re ee «> 398

Section IX. TABLES OF MISCELLANEOUS PROPERTIES OF WATER SUBSTANCE AND SOILS

US MU CIISitye Olt Wate le eis oli bys ave cir Minds Dhiss sim acapelcoks «laces ove'aj oho aucvoye. 6 403 mee herimnalvconductivity OF Waters cece reyes s45) =, 0 ote « earn ais ehetfel il, oa = 403 120. Thermal conductivity and thermal diffusivity of ice.............. 404 121. Thermal conductivity and thermal diffusivity of snow............ 404 122. Thermal conductivity, specific heat, and density of soils and rocks.. 405 aeileatent eat or Meltine jOt SA 1COwWiee ost sles alee peices «aye8 aia 0ia\2 405 Ree SPCC Meat ObeSCal WateR a o.oo. 5 widio A in dieigid niisle Miceus cies ais alls) eae Si 406 Pee SPCC IC Meat OF Gea Ieee | ie cd sia ah 2) Scliclec tie oharsueits mised opslit eveueriay sleia 406 Bate Mel ae momitrit Sea) WALeh. eet fe fads tale 2 Bt loys enahe 5 ule ciao athe seicet 406 127. Depth of water corresponding to the weight of snow or rain col- lected ineaves Of Various. CiamMeterSe ali. tote el col eeeiaio euayate 407 128. Quantity of rainfall corresponding to given depths............... 407

SECTION X. RADIATION AND VISIBILITY TABLES

| blackbody, yadiation 2 Wards Aohere od eee ae eee Ieee 411 130-131. Solar radiation outside the atmosphere (explanation)........ 414 130. Intensity of solar radiation outside the atmosphere............... 415

131. Energy distribution of solar radiation outside the atmosphere..... 416

x SMITHSONIAN METEOROLOGICAL TABLES

TABLE PAGE 132-134. Total solar radiation at the top of the atmosphere (explana- HON), ok fades Aetae hah BEA cte, Sas BcesaToe ery ote leg WS Toker she Pee 417 132. Total daily solar radiation at the top of the atmosphere........... 418 133. Total annual and seasonal solar radiation at the top of the at- FMOSPHELE Wi i>, shasta taal sBS hele A ASltve Metal We oetdtayese eeyol engi hohe 418

134. Chart of the total daily solar radiation at the top of the atmosphere. 419 135-136. Total direct solar radiation reaching the ground with various

atmospheric transmission coefficients (explanation).......... 420 135. Total daily direct solar radiation reaching the ground with various

atmospheric transmission coefficients.........-.++++eeeeeee 421 136. Total annual and seasonal direct solar radiation reaching the ground

with various atmospheric transmission coefficients........... 422 137. Optical air mass corresponding to different zenith distances of the

SU erage Sete se eee aes 6) ercnep od ensle, ware oh egagetnn eh Bier oh oxchel ckatoeerenen 422 138. Absorption of radiation by water vapor, 10-25y4............0.505 423 139. Absorption of radiation by water vapor, 1.3-9n.........0.eeeeees 425 140. Transmission of solar radiation by water vapor, 0.7-2.24.......... 425 141. Absorption of radiation by carbon dioxide. .3 a0 .« + .-~o0 -f oaaeee 427 faz Absorptionvot radiation by .0Z0Ne. 5.064 14 cise ¥ “ie he cce aero 428 EAS NDSOLpLiOm COEiIClents OL -OXYSEM a. ae eins + = «\s le ects cher Noe ee 430 144. Transmission of radiation through pure, dry air................. 431 145.: ‘Seattering of, solar radiation by, water vapota): .\: 0/222 ..<case one 432 146. Transmission of solar radiation by the atmosphere, 5.5-22y........ 433 147. Transmission of solar radiation through moist air............... 436 148. Spectral distribution of solar radiation at sea level............... 438 149. Total solar and sky radiation on a horizontal surface during cloud-

LOSSiCORGIEIONS states, eh etohs arose eve ican ses ene sees CR ee 438 150. Relation between the vertical component of direct solar radiation

and total solar and sky radiation on a horizontal surface...... 439 151. Relation between average sunshine and solar radiation on a hori-

ZOULAL SUTIACE, cfeine s!die 5 \.cied scree nents a sleet ea tee eee 440 152. Transmission of solar radiation through clouds (overcast)........ 441 153. Relation between illumination and total radiation................ 442 Bit, al bedovat Various surtaces. sole). nccias « fa) oc ort emcee cyte EE 442 io; UReflectivity ofvaswatenisurtace sc. ee ee a eee 444 156. Absorption of radiation by pure liquid water.................2. 445 157. Absorption of radiation by sea water........+.<e00sc acc eae or 446 158. Scattering area coefficients for water drops in air................ 446 159. Relative spectral luminosity for the human eye at various luminance

levelsp cys /ieees ital Tahe ia Sans, hel tiene set Nal La arose Datiechie ete ate eR sd 448

160. Horizontal visibility

CONTENTS xi

Section XI. GEODETIC AND ASTRONOMICAL TABLES

TABLE PAGE fols Geodetic and astronomical (constants...) 32 2s). be cie sk ek yes o's ne 481 fe2.. Leneth ot one desree of the meridiatl, .. 20 25 65 sack een de ves os 482 Hess length o: one degree of the parallels! J6 Ais oss) 5 sio.c ois gin n tiers eae m3 483 164. Distribution of water and land in various latitude belts........... 484 KGS: Seale variation for'standard map projections. .../....20 26. s/...... 485 166. Radius of curvature on a polar stereographic projection.......... 486 '6/-165.5 Acceleration of gravity (explanation). 8000226 eA 488 hoya rcecleration ojleravity,at/sea level 0h So. 5 bees FO ek. 491 168. Relative acceleration of gravity at sea level..........2.....0000. 493 PS ape ethene: Ele Stn: jc iysjsee oe Ae mee ele, ele ee ee eas de ae 495 mas Solar altitude jand azimuths oe ee... 8 te SO PLE ON ETS 497 171-174. Duration of daylight, civil twilight, and astronomical twilight CCE OREO INI Fu. 1S A PIT gs WEN Os GE Oe ER eee 506 ew Duratignnor daylights:t: Vase ie ees eee OL Set. 507 Peo Duration olieiviltwilights 2c Melee. ULI ee EP oe 513 i273. Duratiomon astronomical twilight) 0). Ye oo a. S17 174. Daylight and twilight for southern latitudes.................... 520 Ore Rh LS. aa. SEMEL ee eRe: 22 Malet dais LeG Syl

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INTRODUCTION CONVERSION OF UNITS OF LENGTH AND MASS

United States usage.—No general agreement yet exists on the factors to be used in the conversion between the metric and the English systems of units. In the United States, an Act of Congress of July 28, 1866 (14 Stat. 339; 15 U.S.C. 204) established the metric system as lawful throughout the United States and ordered the units of weights and measures in common use to be defined in terms of this system. A schedule annexed to this Act established 39.3700 inches as the equivalent of the meter and 2.2046 pounds (avoirdupois) as the equivalent of the kilogram. In 1893 T. C. Mendenhall, Superintendent of Standard Weights and Measures, issued an order * stating that his office would regard the International Prototype Meter and Kilogram ? as the fundamental standards and affirmed the equivalents of the Act of 1866.

In actual practice, the National Bureau of Standards still uses the length ratio annexed to this Act, which yields 1 inch = 2.540005 centimeters. How- ever, in the case of the pound, the National Bureau of Standards has adopted the results of a comparison of the British Imperial Standard Pound and the International Prototype Kilogram made in 1883, 1 pound = 453.5924277 grams, rather than the ratio annexed to the Act of 1866, which yields 1 pound = 453.597+ grams.

British usage.—In Great Britain, the English standards of length and mass are legally defined by the Imperial Standard Yard and the Imperial Standard Pound, respectively, and the relation of the English to the metric units are experimentally determined by direct comparison.* The conversions now legally sanctioned in Great Britain are:

1 inch = 2.539998 centimeters 1 pound = 453.59234 grams

Recent comparisons.—According to the most recent comparisons: *

1 Imperial Yard _ 3600000 | which yields 1 meter ~ 3937014

1 inch = 2.539996 centimeters

1U. S. Coast and Geodetic Survey, Bull. 26, 1893.

2 Prepared by the International Bureau of Weights and Measures, Sevres, France. This bureau was established by the International Metric Convention, 1875, and is sup- ported by the contributions of many nations, including the United States.

8 For a discussion of the problems involved, see Darwin, C., et al., Proc. Roy. Soc. London, ser. A, vol. 186, p. 175, 1946.

4Nat. Bur. Stand., private communication, July 1949.

1

2 SMITHSONIAN METEOROLOGICAL TABLES

In the case of the pound, this comparison resulted in the conversion: 1 pound = 453.59234 grams

Industrial usage.—In recent years improved industrial techniques have made it desirable to standardize the relationships used by the various English- speaking countries. The conversion 1 inch = 2.54 centimeters has been sug- gested as the best compromise, with the practical advantage of facilitating mechanical conversion between the two systems by means, for example, of a 127-tooth gear wheel on a lathe or measuring instrument. The above relation- ship has been the standard for American and British industrial use for several years and has been adopted by both the American Standards Association ® and the British Standards Institution.®

Even less practical difference exists between the various definitions of the pound, but the conversion 1 pound = 453.5923 grams has been urged, since this figure is divisible by 7000, the number of grains in a pound.

At this writing a bill to legalize these two conversions has been prepared for introduction in Congress and the British are expected to legally sanction them by an Order in Council upon enactment of the bill into law. Australia has already adopted the new conversion factors.

Accordingly, all conversions between the English and metric systems in this volume are based on the relationships:

1 inch = 2.54 centimeters

1 pound = 453.5923 grams

Nautical mile.—Originally and practically for uses at sea, the nautical mile was considered to be the length of 1 minute of arc on the earth’s surface for the given latitude and in the given azimuth on a representative spheroid. A more precise definition is desirable and in the tables issued by the U. S. Office of Standard Weights and Measures, September 1898, the nautical mile is defined as a minute of arc of a great circle on a sphere whose surface equals that of the Clarke spheroid of 1866. The value now given for the nautical mile by the National Bureau of Standards’ is 1853.248 meters. Using Clarke’s ratio of the foot to the meter this length is 6080.27 feet, the value given in Bowditch; * using the ratio annexed to the Act of 1866 this length is 6080.20 feet, the value given in previous editions of these tables. The adoption of the new ratio of the foot to the meter (1 foot = 0.3048 meter)

5 American Standards Association Report B 48.1, “Inch-Millimeter Conversion for Industrial Use,” 1933.

® British Standards Institution Report B. S. 350, “Conversion Factors and Tables,” 1944.

7U. S. Nat. Bur. Stand. Misc. Publ. M 121, 1936.

® Bowditch, N., American Practical Navigator, 1938 rey. ed., pp. 20 and 327. U. S. Navy Hydrographic Office, Washington, 1939. On page 144 the factor 6080.20 is given.

INTRODUCTION 3

results in the following definition of the U. S. nautical mile, which is used throughout this volume:

1 U. S. nautical mile = 1853.248 meters = 6080.21 feet

Other definitions of the nautical mile are in use. The British Admiralty defines the nautical mile as being 6080 feet (exactly); the international nautical mile is defined as being 1852 meters (exactly) .1™

STANDARD GRAVITY FOR REDUCING BAROMETRIC OBSERVATIONS

Prior to the introduction of the mullibar as the common unit of pressure in meteorology, it was customary to express barometric pressures in terms of the height of a column of mercury reduced to standard conditions of tempera- ture and gravity. Conventionally, the standard value for the acceleration of gravity adopted was that at latitude 45° and sea level.®

To reduce units of pressure expressed in terms of the height of a mercury column to standard gravity, it is only necessary to know the ratio of the local acceleration of gravity to the standard value. In general, this ratio is de- terminable with more precision than the absolute value of the acceleration of gravity at a given place. However, if pressures are to be converted to absolute units (e.g., millibars), it is necessary to know the standard acceleration of gravity.

At the 1891 meetings of the International Committee on Weights and Measures, Defforges and Lubanski ?° announced the results of an investigation made in 1888 which yielded an acceleration of gravity at latitude 45° and sea level of 980.665 cm. sec.? This value has been used extensively since that time by physicists and others as an arbitrary standard value of gravity, al- though it has long been known that it does not represent the absolute value of gravity at latitude 45° and sea level.11 The most recent determinations indicate that the best value is near 980.616 cm. sec.”? (see Table 167).

Most meteorological services, including the U. S. Weather Bureau, first reduce barometer readings in terms of inches or millimeters of mercury to gravity at latitude 45° and sea level (9,5, 0) by means of a correction depending on the ratio of local gravity to gis, 0 (see Table 47) and then convert to abso- lute units. Strictly speaking, it is therefore necessary to use the best estimate of the value of gravity at latitude 45° and sea level in converting the inch or millimeter of mercury to millibars. This procedure was adopted by the Inter- national Meteorological Organization in 1939 (Resolution 25, Berlin). How- ever, for many physical applications (e.g., the definition of the International Temperature Scale, 1948, see footnote, page 17) one atmosphere is defined as 1013.250 mb. This pressure corresponds to the pressure exerted by a column

® International Meteorological Tables, Paris, 1890.

10 Defforges and Lubanski, Com. Int. des Poids et Mes., Ann. I, p. 135, Paris, 1892. 11 Dryden, H. L., Nat. Bur. Stand. Journ. Res., vol. 29, p. 303, 1942.

lla Effective July 1, 1954, the international nautical mile was adopted by the LU. S. Department of Defense and the Department of Commerce.

- SMITHSONIAN METEOROLOGICAL TABLES

of mercury 760 mm. high, having a density of 13.5951 gm. cm.*° and subject to a gravitational attraction of 980.665 cm. sec.”

A distinction is therefore necessary between the standard inch or millimeter of mercury based on 980.665 cm. sec.* and the “45°” inch or millimeter of mercury based on 980.616 cm. sec.* (see Table 1). Owing to the action of the International Committee on Weights and Measures, in adopting the con- ventional standard value 980.665 cm. sec.,? it is advisable to employ this datum for all barometric readings. Accordingly, with a view to maintaining con- sistency with the basis on which the International Temperature Scale of 1948 is established, the tables presented herein for conversions of inches or milli- meters of mercury to millibars, and vice versa, are based on the conventional standard acceleration of gravity (980.665 cm. sec.”*).

If it is desired to convert “45°” inches or millimeters of mercury to milli- bars, the tabular values in Tables 9 and 11 must be decreased by 0.005 percent. Conversely, if millibars are to be converted to “45°” inches or millimeters of mercury, the tabular values in Tables 10 and 12 must be increased by 0.005 percent.

CALORIE

15° gram-calorie.—The small- or gram-calorie *? was originally defined as the quantity of heat necessary to raise the temperature of 1 gram of water 1 degree centigrade. It was found necessary to specify the exact range of temperature over which the water was heated and it became possible to define many such calories, depending on the range. The 15° gram-calorie (cal.1s), the quantity of heat necessary to raise the temperature of 1 gram of water from 14.5° C. to 15.5° C., has until recently been one of the most common units of heat used in scientific work.

International Steam Tables calorie.—Modern laboratory procedures for the determination of amounts of heat usually involve electrical apparatus and it has been found advantageous to define the calorie in terms of electrical equivalents. Therefore in 1929 the First International Conference on Steam Tables ** defined the International Steam Tables calorie (ITcal.) as being equivalent to 1/860 10* mean international kilowatt-hours, where 1 mean international kilowatt-hour = 1.00019 absolute kilowatt-hours.* This defi- nition has also been adopted by the International Meteorological Organiza-

12 The large- or kilogram-calorie (Kcal.) has not been used in this volume.

18 Mech. Eng., vol. 52, p. 120, 1930.

14In the United States, the National Bureau of Standards uses the relation 1 inter- national joule = 1.000170 absolute joules, where the “international joule” is the inter- national joule as maintained in this country, and not the mean international joule. This definition yields the relation:

1 ITcal. = 4.18674 absolute joules = 4.18605 international joules.

INTRODUCTION 5

tion.1> The relation of the International Steam Tables calorie to the 15°

gram-calorie is: *° 1 ITcal. = 1.00032 cal.1;

Meteorological practice.—From the relationship above, it is evident that for most ordinary meteorclogical purposes the difference between the IT calorie and the 15° calorie is negligible. However, it is still customary to use the 15° calorie in radiation and associated fields of meteorology, while the IT calorie has become the standard for use in thermodynamic calculations. This dual usage has been adopted in general throughout this volume. In some instances the type of calorie is unspecified; here the nature of the data is such that the difference is immaterial.

15 Int. Meteorol. Org. Twelfth Conference of Directors, Resolution 164, Washington,

1947. 16 See Birge, R. T., Rev. Mod. Phys., vol. 13, p. 233, 1941.

(5 D

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vi

i oa)

ae | ab acs LER carted 1 ee ee P | me

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Migaial

SECTION I

CONVERSION TABLES

eg i \

a

og wt ‘i ae :

SLA Me iar h

TABLE 1 CONVERSION FACTORS?

ORGANIZATION OF TABLE

= 0.001550003 in?

* Average value, 1/90 of meridian quadrant.

SMITHSONIAN METEOROLOGICAL TABLES

lin. = 2.54 cm. 1 1b. = 453.5923 g.

Fundamental conversion factors are in bold-face type.

(continued)

A. Length F. Mass K. Energy, work B. Area G. Density, specific volume L. Power C. Volume H. Viscosity M. Energy per unit area D. Time I. Pressure N. Power per unit area E. Velocity; speed J. Force O. Illumination, brightness, etc. A. Length: 1 Angstré6m unit (A.) 1 inch (in.) — 10° Me = 25.4 mm. = 107 cm = 2.54 cm. =—— ane mm 1 micron () 1 foot (ft.) = IIGr UA = 12 in. = 10° cm. = 30.48 cm. = 10" m. = 0.3048 m. 1 yard (yd.) 1 millimeter (mm.) = 36 in. =! Oncm: SSS 107 m:; = 91.44 cm, = 0.039370079 in. = 0.9144 m. 1. centimeter (cm.) 1 fathom (fath.) =o Oem = 6itt = 0.39370079 in. = 1.8288 m. = 0.032808399 ft. 1 rod (rd.) 1 meter (m.) == 16:5itk. =—=10%em: = 5.0292 m. = 3.2808399 ft. 1 statute mile (stat. mi.) = 39.370079 in. == 5250 nt. 1 kilometer (km.) = 0.868391 naut. mi. == 1 0%em: = 1609.344 m. == 10m: = 1.609344 km. = 3280.8399 ft. 1 U. S. nautical mile (naut. mi.) + = 0.621371 stat. mi. = 6080.21 ft. = 0.539593 naut. mi. == 1-151 555\stat. mi. 1 degree of latitude * (°lat.) = 1853.248 m. = T1037 mn: = 1.853248 km. = 111.137 km. 1 British Admiralty nautical mile = 69.057 stat. mi. = 6080 ft. = 59.969 = 60 naut. mi. 1 International nautical mile = 1852 m. =i = 1.150779 stat. mi. 1 square millimeter (mm.”) 1 square inch (in.’)

= 6.4516 cm?

t See Introduction, p. 2.

1See Introduction for discussion of the basic conversion factors adopted. All metric-English unit conversions are based on the factors:

10 TABLE 1 (CONTINUED) CONVERSION FACTORS

B. Area: (continued)

1 square centimeter (cm.’) = 10? mm? = 0.1550003 in”

1 square meter (m.) == Otcem = 1550.003 in.’ = 10.76391 ft.

1 square kilometer (km.’) mem Vine Cera Pe = 10°.m? = 1.076391 10° ft. = 247.1054 acre = 0.3861022 stat. mi.?

C. Volume: 1 cubic centimeter (cm.*) = 0.999972 ml. = 0.0610237 in.* = 0.0338140 U. S. fl. oz. 1 cubic meter (m.*) or stere (s.) =O cn = 999,972 1. == 55,0147 tt.” = 264.172 U. S. gal. == 219.975 Brit: gal, 1 milliliter (ml.) = 1.000028 cm.’ = 0.0610255 in? = 0.033815 U. S. fl. oz. = 0.035196 Brit. fl. oz. 1 liter (1.)

(1 liter is defined as the volume occupied by 1 kilogram of water at its temperature of maximum density. )

= 1000.028 cm?

= 610250410" ==idd.015°U..S; fi. Oz. ==1.05672 U.S. at: = 0.264179 U. S. gal. = 35.196 Brit. fl. oz.

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

1 square foot (ft.?) = 144 in? = 929.0304 cm. = 0.09290304 m2

1 square yard (yd.) =n = 8361.2736 cm.” = 0.83612736 m.?

1 acre = 43560 ft. = 4840 yd.” = 4046.8564 m.?

1 square statute mile (stat. mi.’) = 2.78784 x 10" ft.” = 640 acres = 2.58999 km?

1 cubic inch (in.*) = 0411S Ue S. fe.oz: = 16.3871 cm? = 16.3866 ml.

1 cubic foot (ft.*) = 1/729"in® = 29.9221 U. S. qt. = 7.48052 U. S. gal. = 28316.8 cm.” = 28.3161 1.

1 fluid ounce, U. S. (U. S. fl. oz.) = 1.80469 in? ==/29!5/35 cnr == 295727 emi: == 1.0408 Brit. fl. oz.

1 fluid ounce, British (Brit. fl. oz.) == 127339) 11 = 28.413 cm? = 28.412 ml. = 0.96076 U. S. fl. oz.

1 quart, liquid, U. S. (U. S. qt.) = 725s mY ABE Seely OH = 946.353 cm.® = 0.946326 1.

1 gallon, U. S. (U.S. gal.) = 231 in.3 == 128) U pou oz = 133.23 Brit. flv oz: = 0.83267 Brit. gal. = 3785.41 cm’ == 3. 7000LN1-

TABLE 1 (CONTINUED) 11 CONVERSION FACTORS

C. Volume: (continued) r 1 gallon, British (Brit. gal.) (Im- perial gallon) (1 British gallon is defined as the volume occupied by 10 pounds of water at 62° F.) = 160 Brit. fl. oz. = 277.42 in? = E2010) Us S: gal. == 155042. 5... OZ. = 4546.1 cm’ = 4.5460 1. D. Time:

_

mean solar second (sec., s.) = 1.002738 sidereal seconds mean solar minute (min., m.) = 60 sec. (mean solar) mean solar hour (hr., h.) = 3600 sec. (mean solar) = 60 min. (mean solar) mean solar day (da., d.) = 86400 sec. (mean solar) = 1440 min. (mean solar) = 24 hr. (mean solar) = 24 hours 3 minutes 56.555 seconds of mean sidereal time tropical (mean solar, ordinary) year (yr.) = 31.5569 & 10° sec. (mean solar) = 525949 min. (mean solar) = 8765.81 hr. (mean solar) = 365.2422 da. (mean solar) = 366.2422 sidereal days 1 sidereal second = 0.997270 sec. (mean solar) 1 sidereal day = 86164.1 sec. (mean solar) = 23 hr. 56 min. 4.091 sec. (mean solar)

—

—

—

—_

E. Velocity; speed:

1 meter per second (m. sec.”, mps) 1 knot == 15.0 kame hr. == [nants mi. hr- = 1.94254 knots == 2 15155inw hr:= = 2.23694 mi. hr. = 1.68895 ft. sec. = 3.28084 ft. sec. = 0.514791 m. sec.* = 196.850 ft. min.* = 1.85325 km. hr.* = (77742 “lat: day = 101.337 ft. min.* 1 kilometer per hour (km. hr.7, = 0.40021 = 0.4 °lat. day” kph) 1 mile per hour (mi. hr.”, mph) = 0.277778 m. sec. = 0.868391 knot = 0.539593 knot = 1.46667 ft. sec.~ =='0:621371 mi. hr. = 0.44704 m. sec.* = 0.911344 ft. sec.7 = 1.609344 km. hr.* = 0.21595 °lat. day = 88 ft. mins = 0.34754 °lat. day* (continued)

SMITHSONIAN METEOROLOGICAL TABLES

12 TABLE 1 (CONTINUED) CONVERSION FACTORS

E. Velocity; speed: (continued) 1 degree of latitude per day (°lat. day) = 1.2863 m. sec.* = 4.6307 km. hr.* = 2.4987 = 2.5 knots = 2.8774 mi. hr.

F. Mass:

1 gram (g.) = 15.4324 gr. = 0.0352740 oz. = 0.002204623 Ib.

1 kilogram (kg.) al Ong: = 35.2740 oz. = 2.204623 |b.

1 metric ton, tonne (t.) =10' kg. = 2204.623 Ib. = 1.10231 short tons = 0.9842107 long ton

G. Density, specific volume: 1 gems = 62.4280 Ib. ft.* == il ty sa l ont gs = 0.0160185 ft. Ib.-

H. Viscosity 1 poise == lg; cm. sec = 0.002089 Ib. (wt.) sec. og

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

1 foot per second (ft. sec.’, fps)

= 0.592085 knot = 0.681818 mi. hr.* = 60 ft. min.* = 0.3048 m. sec.” = 1.09728 km. hr.* 1 foot per minute (ft. min., fpm) = 0.00986808 knot = 0.0113636 mi. hr.* = 0.00508 m. sec.* = 0.018288 km. hr.*

—_

grain (gr.)

= 0.0647989 g.

= 0.00228571 oz. ounce avoirdupois (o0z.)

==/437.5' or,

= 28.3495 g. pound avoirdupois (lb.)

= 7000 gr.

10) oye

= 453.5923 g.

= 0.4535923 kg. short ton

= 2000 Ib.

= 0.892857 long ton

= 907.1846 kg.

= 0.9071846 t. long ton

= 2240 Ib.

= 1.12 short tons

= 1016.047 kg.

= 1.016047 t.

—y

="

="

—"

Lalb its

= 0.0160185 g. cm.* ftrlbs,

= 62.4280 cm; g.7

_

—

Ib. (wt.) sec. ft. = 478.8 poises

TABLE 1 (CONTINUED) 13 CONVERSION FACTORS

I. Pressure:

Note.—The pressure units one standard inch of mercury, one standard millimeter of mercury, and one standard atmosphere are defined in terms of the conventional standard value of gravity 980.665 cm. sec.*, which was adopted by the Interna- tional Committee on Weights and Measures. These units have been proposed for general meteorological use. The pressure units one 45° inch of mercury, one 45° millimeter of mercury, and one 45° atmosphere are defined in terms of the best value of gravity at 45° latitude and sea level, 980.616 cm. sec.’ See introduction,

page 3. 1 dyne per square centimeter (dyne cm.”) = 1. barye = 10) mb. On bate 1 millibar (mb.) = 10° dynes cm.” = 0.00101972 kg. cm. = 0.750099 mm. Hg. (45°) = 0.750062 mm. Hg. (stand- ard) = 0.0295315 in. Hg. (45°) = 0.0295300 in. Hg. (stand- ard) = 0.0145038 Ib. in.-? 1 centibar (cb.) = 10 mb. 1 bar (b.) = 10° dynes cm.” = 10° mb. = 10° barye 1 standard millimeter of mercury (mm. Hg. (standard) ) = 1.000050 mm. Hg. (45°) = 1.333224 mb. = 0.001359504 kg. cm.? = 0.03937205 in. Hg. (45°) = 0.03937008 in. Hg. (stand- ard) = 0.0193368 Ib. in.-? 1 45° millimeter of mercury (mm. Hg. (45°)) = 0.999950 mm. Hg. (stand- ard) ==sa0lo2 mb: = 0.00135944 kg. cm.? = 0.03937008 in. Hg. (45°) = 0.0393681 in. Hg. (stand- ard) = 0.0193358 Ib. in.”

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

1 standard inch of mercury (in. Hg. (standard) ) = 0.491154 Ib. in.” = 33.8639 mb. = 0.0345316 kg. cm.” = 25.4013 mm. Hg. (45°) = 25.4 mm. Hg. (standard) 1 45° inch of mercury (in. Hg. (45°)) = 0.491130 Ib. in? = 33.8622 mb. = 0.0345298 kg. cm.” = 25.4 mm. Hg. (45°) = 25.3987 mm. Hg. (stand- ard) 1 pound per square inch (Ib. in.”, psi) = 2.03612 in. Hg. (45°) = 2.03602 in. Hg. (stand- ard) = 68.9476 mb. = 0.0703069 kg. cm.? = 51.7175 mm. Hg. (45°) = 51.7149 mm. Hg. (stand- ard) 1 standard atmosphere = 1013.250 mb. = 1.03323 kg. cm.” = 760 mm. Hg. (standard) = 29.9213 in. Hg. (stand- ard) = 14.6960 Ib. in. = 760.038 mm. Hg. (45°) = 29.9228 in. Hg. (45°) = 1.000050 45° atmosphere

14 TABLE 1 (CONTINUED) CONVERSION FACTORS

I. Pressure: (continued) 1 kilogram per square centimeter (kg. cm.~*)

= 980665 dynes cm.”

= 980.665 mb.

= 735.596 mm. Hg. (45°)

= 735.559 mm. Hg. (stand- ard)

= 28.9605 in. Hg. (45°)

= 28.9590 in. Hg. (stand- ard)

14-2240 Ibs ins

J. Force: 1 gram weight = 980.665 dynes 1 kilogram weight = 9.80665 10° dynes

1 newton

= 10° dynes K. Energy, work:

1 erg = 1 dyne-centimeter = 10" abs. joule = 2.38844 « 10* ITcal. == 23092 1 0™ Calis

1 absolute joule (abs. joule)

= 10’ ergs = 0.238844 ITcal. = 0.23892 cal.ss 1 kilogram-meter (kg.-m.) = 9.80665 abs. joules International Steam Tables cal- orie (ITcal.)* = 4.18684 & 10’ ergs = 4.18684 abs. joules = 1.00032 cal.ss 1 ~ 860 X 103 15° gram-calorie (cal.s)* = 4.1855 abs. joules kilogram-calorie (Keal.) = 10° gram-calories absolute kilowatt-hour (abs. kw.- hr.) = 3.6 X 10° abs. joules mean International kilowatt-hr. = 1.00019 abs. kw.-hr. = 860000 IT cal. = 3.60068 X 10° abs. joules = 3412.756 Btu

_

Int. kw.-hr.

rs

—y

_

—"

* See Introduction, p. 4.

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

1 45° atmosphere = 1013.200 mb. == Oa518 ke. Chi = 760 mm. Hg. (45°) = 29.9213 in. Hg. (45°) = 14.695 1b. in. = 759.962 mm. Hg. (stand- ard) = 29.9198 in. Hg. (stand- ard) = 0.999950 standard atmos- phere 1 inch of water, 4° C. = 2.491 mb.

1 pound weight = 32.174 poundals = 444822 dynes

1 poundal = 13825.5 dynes

1 British thermal unit (Btu) (The Btu used here is defined by the relationship:

1 Bta CR) = ei cal (G2 g.-1)

= 251.996 IT cal.

= 252.08 cal.ss

= 1055.07 abs. joules

= 0.00029302 Int. kw.-hr. 1 foot-pound (ft.-lb.)

= 1.35582 abs. joules

L. Power:

TABLE 1 (CONTINUED) CONVERSION FACTORS

1 absolute watt (abs. watt)

= 1 abs. joule sec.“

= 0.238844 ITcal. sec.* = 14.33062 ITcal. min.* = 0.23892 cal.ss sec.

= 14.33527 cals min.~ = 0.056868 Btu min.

1 mean International watt

= 1.00019 abs. watts

1 I1Teal.vseex

= 4.18684 abs. watts

1) itcalSmin=

= 0.069781 abs. watt

1 cal.ss sec.*

= 4.1855 abs. watts

1 cal.s min.*

= 0.069758 abs. watt

M. Energy per unit area: 1 langley (ly.)

= 1 cal. cm.~

= 4.1855 abs. joules cm.* = 0.011624 Int. kw.-hr. m.? = 3.6855 Btu ft?

1 abs. joule cm.”

= 0.23892 cals cm. = 0.00277725 Int. kw.-hr. m I

= 0.88054 Btu ft.*

1 Int. kw.-hr. m.?

= 86.028 calas cm. = 360.068 abs. joules cm.?

N. Power per unit area: 1 cals cm. min.7

a= Jl ihe seatbih a

= 0.069758 abs. watt cm.” = 0.069745 Int. watt cm.” = 69.745 Int. kw. deka-

meter~?

= 316855 Btu fe mina = 1440 calas cm.? day == 55071 Btw dies days

O. Illumination, brightness, etc.: The total luminous flux from a source of unit spherical candlepower is 4m lumens. 1 lux (ix.)

=1 lumen incident per square meter

= 0.0001 ph.

= 0.09290 ft.-c.

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

15

1 horsepower, electrical, U. S.,

Brit.

= 746 abs. watts

1 horsepower (mechanical) = 550 ft. Ib. sec.-2 = 745.70 abs. watts

1 horsepower (continental) = 736 abs. watts

1 cheval-vapeur = 75 kg. m. sec.-2 = 735.499 abs. watts

1 Btu min. = 17.5844 abs. watts

= 251.996 ITcal. min.*

were weet ay sesenes

1 Btu ft. = 0.27133 cals cm.

= 1.13566 abs. joules cm.“

1 Btu ft.? min.7

= 0.27133 cals cm. min.* = 0.0189277 abs. watt cm.*

1 footcandle (ft.-c.)

=1 lumen incident per

square foot = 10:76 Ix:

16 TABLE 1 (CONCI-UDED) CONVERSION FACTORS

O. Illumination, brightness, etc.: (continued)

1 phot (ph.) 1 candle per in.” (c. in.)

=1 lumen incident per == 0:1550 sb: square centimeter = 0/487 1.

1 stilb (sb.) = 452.4 ft.-L. = JeInticacm> 1 footlambert (ft.-L.) gees 42 1, = 0.0003426 sb. = 2919 ft.-L. = 0.001076 L.

1 lambert (L.) = 0.002211 c. in? == 1/xisb;==80:3183 sb. 1 candle per ft. == 21054 \cuin. = 3.142 ft.-L. = 929 ft.-L.

1 millilambert (mL.) —— pe) bp

1 apostilb, in International units = eek dans =a >< 10+) sbi 7310! stilb — Omi:

1 apostilb, in German (Hefner)

units

= 0.09 mL.

Luminous efficiency: At wave length of maximum luminosity 0.555 yw for photopic vision, the luminous efficiency is 680 lumens per watt, corresponding to a minimum “mechanical equivalent of light” of 0.00151 watt per lumen.

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 2 17

APPROXIMATE ABSOLUTE, CENTIGRADE, FAHRENHEIT, AND REAUMUR TEMPERATURE SCALES

Freezing _ Boiling point of point of

water water Scale Symbol (1 atmos.) (1 atmos.) Conversion formulae

Centigrade * (Ge 0° 100° C=(5/9) (F—32)=(5/4) R=K—273.16=AA—273 Fahrenheit 185 32 PilP F=(9/5)C+32=(9/4)R+32=(9/5) (K—273.16) +32 Reaumur R. 0 80 R=(4/9) (F—32)=(4/5) C=(4/5) (K—273.16) Thermodynamic | Kelvin K., A. 273.16+ 373.16+ K=C+273.16=AA+0.16=(5/9) (F—32) +273.16 Absolute 0.017 0.017

Centigrade Approximate AA. 273 373 AA=C+273=K—0.16=(5/9) (F—32) +273

Absolute Rankine Absolute —- 491.69 671.69 Rankine=F+459.69

Fahrenheit

PROPORTIONAL PARTS Ch KAA 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 F 0.18 0.36 0.54 0.72 0.90 1.08 1.26 1.44 1.62 R 0.08 0.16 0.24 0.32 0.40 0.48 0.56 0.64 0.72 F 0.055+ 0.111+ 0.166+ 0.2224 0.277+ 0.3334+ 0.388+ 0.4444 0.5 C, K, AA 0.044+ 0.088+ 0.133+ 0.177+ 0.222+ 0.266+ 0.3114 0.3554+ 0.4 R 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 R 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 CK AA 0.125 0.25 0.375 0.5 0.625 0.75 0.875 1.0 1.125 F 0.225 0.45 0.675 0.9 1.125 1.35 1.575 1.8 2.025 AA. Cc. F. R. AA. Cc. F. R. AA, C. F. R. BV cmlO2Z2 =4215°6" A816 350° 7472, 17026.) Ol26 325° 522 aliZoc 0: MRA 8747 OLE § 213.80) 60.8 349 76 168.8 60.8 324 51 123.8 40.8 BASE) LOO 212201" 18050 348 75 167.0 60.0 323 50 122.0 40.0 372 SOM 210. 2e8 7922 347 Hes Mies B57 322 49. 12052), 1 39)2 371 98 208.4 78.4 346 73. +«=©163.4 58.4 SA 48 118.4 38.4 370 O70 206165)177..0 345 le) 1668 7e6 320 A/E 166s oOzO 369 96 204.8 76.8 344 71 15958 % S658 319 46 114.8 36.8 368 OS 203K0)) 42620 343 70° 158k0) S620 318 45 LES EON 3650 367 Oye AO ie 342 69 WS S37 317 AA Sn Zuea oe 366 93 199.4 74.4 341 68 154.4 54.4 316 43 109.4 34.4 365 CZ VACA PY BIKE 340 67 15226) 350 315 LYNN ANWV/AY SEG 364 91 195.8 72.8 339 66° 15088 1 5228 314 41 105.8 32.8 363 90 194.0 72.0 338 65 149.0 52.0 313 40 104207 732-0 362 89 192.2 TW 337 64 LAZEZ mole 312 39 10252 noleZ 361 88 190.4 70.4 336 63" 145645 "S084 311 38 100.4 30.4 360 87) a188267) 9169.6 335 62) 14336. ‘4926 310 37 98.6 29.6 359 86 186.8 68.8 334 61 141.8 48.8 309 36 96.8 28.8 358 85 18550" 68.0 333 60 140.0 48.0 308 35 95.0 28.0 357 84 US3e 2 OVie2 332 59 138.2 47.2 307 34 OSR2 ZI 356 83 181.4 66.4 331 58 136.4 46.4 306 33 91.4 26.4 355 82 WOKS ONES 330 57. 134265) 45°6 305 32 89.6 25.6 354 81 177.8 64.8 329 56 132.8 44.8 304 31 87.8 24.8 353 80 176.0 64.0 328 55 131.0 44.0 303 30 86.0 24.0 352 19 AZ 63.92 327 Ay GB 302 29 S45 2 e232 351 AS le 4 G24 326 53) 1274s 42K4. 301 28 82.4 22.4 350 tL WOKS, OURE 325 52) 125569 4le6 300 27. 8036 92186 (continued)

* The Ninth General Conference on Weights and Measures, October 1948, gave the degree of temperature the designation of degree Celsius in place of degree centigrade, See Stimson, H. F., The international tem- perature cate of 1948, Nat. Bur. Stand, Journ. Res., vol. 42, p. 209, 1949, and Amer. Journ. Phys., vol. 2a\5 p. 614, 1955.

+R. T. Birge, Rev. Mod. Phys., vol. 13, p. 233, 1941. ; A ;

t In 1954, the thermodynamic temperature was defined so that 273.16°K corresponds to the triple point, yield- ing the value 273.15°K as equivalent to 0°C. Dixieme Conférence Générale Poids et Mesures, Compt. Rend., 954.

SMITHSONIAN METEOROLOGICAL TABLES

18 TABLE 2 (CONTINUED) APPROXIMATE ABSOLUTE, CENTIGRADE, FAHRENHEIT,

TEMPERATURE SCALES

AA, Cc F, R AA. 300° 27° 80°96 21°6 250° 299 26 78.8 20.8 249 298 25 77.0 20.0 248 DOP LG SZAR i552" ©2192 247 2061814.23 734721824 246 205 A i228 71:6 17.6 245 294 ~=so 2 69.8 16.8 244 293 20 #4«®68.0 16.0 243 292 1 “GGEo S152 242 291 18 64.4 14.4 241 290 17. 62.6 ~=—-:13.6 240 289 16 460.8 12.8 239 288 15 59.0 12.0 238 287 14 5722) 11.2 237 286 13 550 10:4 236 285 12 53.6 9.6 235 284 11 cies) uses 234 283 10 50.0 8.0 233 282 Ge AS 782 232 281 Sy A6sta. (644 231 280 7 44.6 5.6 230 279 6 42-8 4:8 229 278 Se ALO. 991420 228 277 a 302 hae? 227 276 ar 37.40 yaa 226 eee S556) 546 225 74 a Ba.8) 0.8 224 273 0, 32:6 40.0 223 27 ie 30.2 '=-0:8 222 of a a 221 Ap. — so) A686 204 220 269 ENA! NM ie 219 268 5 23.0 «4:0 218 267 Se 2h2 48 217 266 7 19.4 5.6 216 265. = 1756. 26.4 215 264 9 158" ee 72 214 263 10 14.0 8.0 213 ee = 132)" Res 212 261 12 10:4: 29.6 211 260 —13 5:6 —10,4 210 259 14 6.9 1122 209 258 15 50 12:0 208 257 16 a2" 12.8 207 Zp. eles SA a6 206 2 ol | 4 144 205 254 19 32) “152 204 25a 420 4.0 16.0 203 ry a 5.8 16.8 202 251 22 7:6) “TT 201 250 —23 —9,4 —18.4 200

SMITHSONIAN METEOROLOGICAL TABLES

C. F. —23° — 924 24 11.2 25 13.0 26 14.8 27 16.6 —28 —18.4 29 20.2 30 22.0 31 23.8 32 25.6 —33 —27.4 34 29.2 35 31.0 36 32.8 37 34.6 —38 —36.4 39 38.2 40 40.0 41 41.8 42 43.6 —43 —45.4 44 47.2 45 49.0 46 50.8 47 52.6 —48 —54.4 49 56.2 50 58.0 51 59.8 52 61.6 —53 —63.4 54 65.2 55 67.0 56 68.8 57 70.6 —58 —72.4 59 74.2 60 76.0 61 77.8 62 79.6 —63 —81.4 64 83.2 65 85.0 66 86.8 67 88.6 —68 —90.4 69 92.2 70 94.0 71 95.8 72 97.6 —73 —99.4 (continued)

R. —18°4 19.2

AA. 200° 199

AND REAUMUR

Cc. F. — 73° — 99°4 74 101.2 75 103:0 76 =: 104.8 77, ~—s-: 106.6 — 78 —108.4 79 M02 80 =: 112.0 81 11328 $2- 115.6 — 83 —117.4 84 «WS.2 85. d2b-0 86 122.8 87 124.6 — 88 —126.4 89 12832 90 130.0 91 131.8 92 133.6 — 93 —135.4 94 = 137.2 95, / 13950 96 140.8 97 142.6 — 98 —144.4 99 146.2 100 = 148.0 101 = 149.8 102%, ‘TSie6 —103 —153.4 104 = 155.2 105° 15720 106 =: 1158.8 107 —_ 160.6 —108 —162.4 109 164.2 110 166.0 Lil) lG7r8 112 §=169.6 —113 —171.4 114. i7382 1155 “175.0 1164 - 176.8 117) 178.6 —118 —180.4 LIS: - 18282 120 §=184.0 121 1528 122 187.6 —123 —189.4

R.

°

2

—58°4 59.2 60.0 60.8 61.6

—62.4 63.2 64.0 64.8 65.6

—66.4 67.2 68.0 68.8 69.6

—70.4 71.2 72.0 72.8 73.6

—74.4 15.2 76.0 76.8 77.6

—78.4 79.2 80.0 80.8 81.6

—82.4 83.2 84.0 84.8 85.6

—86.4 87.2 88.0 88.8 89.6

—90.4 91.2 92.0 92.8 93.6

4

9A. 95.2 96.0 96.8 97.6

—98.4

TABLE 2 (CONCLUDED)

19

APPROXIMATE ABSOLUTE, CENTIGRADE, FAHRENHEIT, AND REAUMUR

AA, C. F. R.

150° —123° —189°4 — 98°4 149%, 12425 19126 , 9952 148 125 193.0 100.0 147, 126 8194.8 100.8 1465, 12702 (19626), -101.6 145 —128 —198.4 —102.4 144 129 200.2 103.2 143. 130 202.0 104.0 raze. 1807 (2035871 10428 HAIG. 1320520526" | 105.6 140 —133 —207.4 —106.4 139% 13425520922 10752 138m 1350) 211:07 108:0 1SZe 1369) 21258 108-8 1S6R 1372) 21406» 10916 135 —138 —216.4—110.4 aS4y 1392 218329) de 2 1338 1A0RA 2220-02 112.0 1s2)° W41 he 22108). 112.8 Sie) 14204) 6 225064.) 11526 130 —143 —225.4—114.4 $298 | WASs 227-2 11522 128), TAS) )..229-05, 1116.0 1270 _ TAG") -230:8:, 11638 126) 147(5. 5232.6), 117.6 125 —148 —234.4—118.4 t24y "149%, 7236.20) 119.2 123, 150) 238.0; 120.0 i2Z2e lle 239:8% 12058 12). 152i 2416: 121.6 120 —153 —243.4 —122.4 MOE U5Are 6245.28 125.2 MiSs | 155 247.0. 124.0 117, 156 = 248.8 = 124.8 MGn | 157.7 :250.6> 125.6 115 —158 —252.4 —126.4 mae US9ee 254; 25 127.2 HIS «160. 256.0; | 128.0 Digs 161; - 257-8) «128.8 ids | 1625012596). 129.6 110 —163 —261.4 —130.4 109 164-2632. 131.2 108" 165:¢ 265.0» 132.0 107 166 266.8 132.8 LOG: - Leger *268).6) 133.6 105 —168 —270.4 —134.4 1045) L690 (272.2. 135.2 103» 170y)-274.0) 136.0 1022. P7lge 275.8) 136:8 LOM W72ie 274.6 1137.6 100 —173 —279.4 —138.4

TEMPERATURE SCALES

AA. Cc F. R. 100° —173° —279°4 —138°4 OO 174) (281 263972 98 175 283.0 140.0 97 176 284.8 140.8 S62 177 bbeZ86-GU1AT. 6 95 —178 —288.4 —142.4 94 179 290.2 143.2 93 180 292.0 144.0 92) 181 9293:8") 144.8 Ot Ph 1824 295.6 77145.-6 90 —183 —297.4—146.4 89 184 299.2 147.2 88 185 301.0 148.0 87 186 302.8 148.8 86 187 304.6 149.6 85 —188 —306.4—150.4 84>) 189 57.308 .255 Aibi:2 83% 190 967310.0% Bi5220 S27. 191 Vp Sygts2-S Sland92 pp isls. Guy glod.6 80 —193 —315.4 —154.4 79% 194 os 5317 2am atS5..2 7853, 195.) 4319.0) 156.0 dd tie 196, 320.800456.8 70) 197 2601322 Gem 7.6 75 —198 —324.4—158.4 ZA), AOD e326 27 e592 73 200 328.0 160.0 7aiie 201 | 56329 8 G0.§ Pur 202 ye 351.6p etl. 70 —203 —333.4—162.4 69. 204, 335.2 163.2 68 205 337.0 164.0 67 206 . 338.8 164.8 66 207 340.6 165.6 65 —208 —342.4—166.4 64 209 344.2 167.2 63: 210 346.0, 168.0 625; -211 55 y347. 82 168-8 Gly 212 7349.6.169..6 60 —213 —351.4—170.4 5955. 214000 303.2¢0 lee Bi c2lSe 150-04 sece.O 57 ie 2169 300-8m 72-8 56in 217 ucundos. Gy alZo.0 55 —218 —360.4—174.4 SA 219)» S02 2n hood Sous 2204 yo04:- Oe 3170.0 Bayes Z2lin ao09 0m bEZO- 6 Ste 222) 1307.0- a177.6 50 —223 —369.4—178.4

SMITHSONIAN METEOROLOGICAL TABLES

AA. Cc: F. R. 50° —223° —369°4 —178°4 49 (0 224 osS71.2 ° 179.2 48 225 373.0 180.0 47 226 374.8 180.8 46 227 376.6 181.6 45 —228 —378.4 —182.4 44 229 380.2 183.2 43 230 382.0 184.0 42» 231 +7383.8 184-8 410 232 91:385.6 185.6 40 —233 —387.4 —186.4 39 027234 94389.2 182.2 38 pp2so. us0l.0 188.0 37 90236, 6392.8 188.8 36-2237, “394.6 189.6 35 —238 —396.4 —190.4 34 65.239 5398.2 191.2 33 240 400.0 192.0 S2i 240 sy 401.8 19258 SI yii242,, 403.6" 19336 30 —243 —405.4 —194.4 29 «9 244 6 407.2 195.2 28 245 409.0 196.0 27 246 «8410.8 196.8 26 247 412.6 197.6 25 —248 —414.4—198.4 24 yy 249 HeAlG.2 ” 199-2 23,4200 |, .418°0° 200-0 22 ae iZol: “419.8 200;8 Zl Zod e42l,.6 201.6 20 —253 —423.4 —202.4 19-254 425.2 ° 203-2 18.7 :209.. & 427.0 204-0 17, 256 = 428.8 +=. 204.8 16 (257 ..430.6 205.6 15 —258 —432.4 —206.4 14 259 434.2 207.2 13. 260 436.0 208.0 I2n¢ 261 , 437.8 208.8 11. 262 439.6 209.6 10 —263 —441.4—210.4 9. 264 443.2 211.2 Su; 200 »e445-0° 21270 7 266 446.8 212.8 6 267 448.6 213.6 5 —268 —450.4 —214.4 Aa ge09 wudoeee. Alone 3,...2/0. 454.0 21670 Zu tel: metdo-6 21078 Loeeee 457.0 207-6 0 —273 —459.4—218.4

20 TABLE 3 FAHRENHEIT TO CENTIGRADE

Rareniaeo of 2 3 A 5 6 Gu 8 9 CT ex (ee rcs ot Oe OF ba OF Oe Lies Cl Oe bel +130° ee 44 +34 50 1 56 +34. 61 7 6741-54-72 1 78 aa; 83 Sy 89 +54.94 129 3.89 94 00 06 54.11 54.17 22 28 54.33 54.39

128 33 33 33 39 33 44 33 50 53.56 53.61 33 67 33. 72 33 78° 53.83 27 52:78) 52.03) '/52.89" 52.94" | $3.00 53:06) SS) “Sas17) $3.22) S38 126 SZ225 WOZ.28 0052.33" 92.39) 52.44 52.50, 52:56); 521619) 52.67) “S272

4125 +51.67 +51.72 +51.78 +-51.83 +51.89 451.94 +52.00 +52.06 452.11 +52.17 124 Setle ot 7gp 51.22, 51.28. 91-33 51.39 S1.440) SY.500. 51.56) Sho 123 50.56 50.61 50.67 50.72 50.78 50.83 50.89 50.94 51.00 51.06 122 50.00 50.06 50.11 50.17 50.22 50.28 50.33 50.39 50.44 50.50 121 49.44 49.50 49.56 49.61 49.67 49.72 49.78 49.83 49.89 49.94

+120 448.89 +48.94 +49.00 +49.06 +49.11 +49.17 449.22 +49.28 +49.33 +49.39 119 48.33 4839 4844 48.50 48.56 48.61 48.67 48.72 48.78 48.83 118 47.78 47.83 47.89 47.94 48.00 48.06 48.11 48.17 48.22 48.28 117 47.22 47.28 47.33 47.39 47.44 47.50 47.56 47.61 47.67 47.72 116 46.67 46.72 46.78 4683 46.89 46.94 47.00 47.06 47.11 47.17

+115 +4611 +4617 +46.22 +4628 +46.33 +4639 +46.44 pee 50 +46.56 +46.61 114 45.56 45.61 45.67 45.72 45.78 45.83 45.89 45.94 46.00 46.06 113 45.00 45.06 45.11 45.17 45.22 45.28 45.33 45.39 iS 44 45.50 112 44.44 4450 4456 4461 44.67 44.72 44.78 4483 4489 44.94 111 43.89 43.94 4400 44.06 44.11 4417 44.22 44.28 4433 44.39

+110 +4333 +43.39 +43.44 +43.50 +43.56 +43.61 +43.67 +43.72 +43.78 +43.83 109 42.78 4283 4289 42.94 43.00 43.06 43.11 43.17 43.22 43.28 108 42.22 42.28 42.33 42.39 42.44 42.50 42.56 4261 4267 42.72 107 41.67 41.72 41.78 4183 41.89 41.94 42.00 42.06 4211 42.17 106 41.11 41.17 41.22 41.28 41.33 41.39 41.44 41.50 41.56 41.61

+105 +40.56 +40.61 +40.67 +40.72 +40.78 -+40.83 +40.89 +40.94 +41.00 +41.06 104 40.00 40.06 40.11 40.17 40.22 40.28 4033 40.39 40.44 40.50 103 39:44 1939/50) 39:56, 139-61 39.67 39.72 39.78 39.83 39.89 39.94 162 38.89 38.94 39.00 39.06 39.11 39.17 39.22 39.28 39:33 39:39 101 38.33 38.39 38.44 38.50 38.56 38.61 38.67 38.72 38.78 38.83

+100 +37.78 +37.83 +37.89 +37.94 +38.00 +38.06 +38.11 +38.17 +38.22 +38.28 99 SA-2a eat2o ie 37.33 37-39 S744 37:50. 37.56 37.615 3707 s3i-72 98 36.67 36.72 36.78 3683 36.89 36.94 | 37.00% 37:06) 37-ty )) 37:17 97 36.11 36.17 36.22 36.28 36.33 36.39 36.44 36.50 36.56 36.61 96 SO 50h 939.67 9135.72 5 35:78 35.83 35.89 35.94 36.00 36.06

+95 +35.00 +35.06 +35.11 435.17 +35.22 +35.28 +35.33 +35.39 +35.44 +35.50 94 34.44 3450 3456 34.61 34.67 34.72 34.78 3483 3489 34.94 93 33.89 33.94 3400 3406 34.11 34.17 3422 3428 3433 34.39 92 9-091 35.59 030-44 190.50 | 33.56 33.61 33:67 % 33:72" Wade | S088 91 92.70. 1) $2.83» 32.89" | 32.94 \''33:00 33.06. S3.T1 SS essen sane

+90 +32.22 432.28 +32.33 +3239 +32.44 +32.50 +32.56 +32.61 +32.67 +32.72 89 SUG7 Mishes2m) SL-78) Weol.OS MOL. 31.94. °32.00' 32060 B2ty S217 88 Soll mol 2A MsteeS 3S 31,39, 31-445 3150" 31a) SEG) 87 30.56 30.61 30.67 30.72 30.78 30.83 30.89 30.94 31.00 31.06 86 30.00 30.06 30.11 30.17 30.22 30.28 30.33 30.39 = 30.44 = 30.50

+85 +29.44 +29.50 +29.56 4+29.61 +29.67 429.72 +29.78 +29.83 +29.89 +29.94 84 28.89 28.94 29.00 29.06 29.11 29117 29:22" 29.28) 2ZO'SSa 29549 83 28.33 28.39 28.44 28.50 28.56 2861 28.67 28.72. 28:78 28.83 82 27.78 27.83 2789 27.94 28.00 28:06. 28:1Ly “Ze 28ers 2e28 81 27.22 24-28 27.33 27.39 27:44 27.50 27:56.) 27'GY Se 27Giee erane

+ 80 +26.67 +26.72 +26.78 +26.83 +26.89 +26.94 +27.00 +27.06 +27.11 +27.17

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 3 (CONTI

NUED)

21

FAHRENHEIT TO CENTIGRADE

heit 0 ml! a2 3 4 Aon 2c oC =) ci +80° 126.67 nee de We is +26.83 +26.89 79 26.11 17 26.28 26.33 78 25.56 ae 61 se a ZaVi2ie B2OS 77 AM) Zo “3b l) ay) 7A 72 76 24.44 2450 2456 2461 24.67 +75 +23.89 +23.94 +2400 +24.06 +24.11 74 23-39) 25.09) 25:44) 0923.50") 123:56 73 22:78} 522.83 | 22:89" 22:94, 23/00 72 PLAID Felts) ABBY | PePAS PHD! 71 PAG) “PALA. VALTER e7Abees) VALS, +70 +21.11 +21.17 421.22 421.28 +21.33 69 20.56 20.61 20.67 20.72 20.78 68 20.00 20.06 20.11 2017 20.22 67 19.44 19.50 19.56 19.61 19.67 66 18.89 1894 19.00 19.06 19.11 +65 +18.33 +18.39 +18.44 +1850 +18.56 64 17.78 17.83 17.89 17.94 18.00 63 VPP TUS SB e AS alee! 62 16.67 16.72 16.78 1683 16.89 61 1G SOLO PIG ZZ 1628" M6933 +60 +15.56 +150. +15.67 +15.72 +15.78 59 TOO MLS OG me Saline SZ — iSi22 58 14.44 1450 1456 1461 14.67 57 13.89 13.94 1400 1406 14.11 56 TSS S394 v13/44) 6513250 413/56 +55 +12.78 +12.83 +12.89 +12.94 +13.00 54 122 A2S 2235) a2 39) era 53 UMGZi ple 72 eZ 8) ee 1eSS! ) LIES 52 ei ele ele 22a 1 e2S8) e338 51 10.56 10.61 10.67 10.72 10.78 +50 +10.00 +10.06 +10.11 +10.17 +10.22 49 9.44 9.50 9.56 9.61 9.67 48 z 89 “n a0 9.06 9.11 47 8.33 8.39 8.44 8.50 8.56 46 7.78 7.83 7.89 7.94 8.00 +45 47.22 47.28 +7.33 +7.39 ++7.44 44 6.67 6.72 6.78 6.83 6.89 43 6.11 6.17 6.22 6.28 6.33 42 5.56 5.61 5.67 WH 5.78 41 5.00 5.06 5.11 Sly/ 522 +40 +444 4450 +456 +461 +4.67 39 3.89 3.94 4.00 4.06 4.11 38 3.33 3.39 3.44 3.50 3.56 37 2.78 2.83 2.89 2.94 3.00 36 Bee, 2.28 2.33 2.39 2.44 +35 +1.67 +1.72 +1.78 +1.83 +1.89 34 +111 417.17 +1.22 +1.28 +1.33 33 +0.56 +0.61 +0.67 +0.72 -+0.78 32 0.00 +0.06 +011 +4017 +0.22 31 —0.56 —0.50 —0.44 —0.39 —0.33 +30 —1.11 —1.06 —1.00 —0.94 —0.89 (continued)

SMITHSONIAN METEOROLOGICAL TABLES

5 6 iw 8 2

LY Ost Key OG [Cc Xx oe 94 mt 00 +27.06 427.11 +27.17 6.39 26.44 2650 26.56 26.61 38 83 38 89 25.94 56 00 26.06 25287 0525.33 25.0901 29.44 | 25:50 24.72 24.78 2483 24.89 24.94

424.17 £24.22 424.28 +-24.33 4-24.39 23:61 23.67: ("2392 ) 23.78. 23.83 23:06 £23.11) 923717, (23.22 22.50 22.56 2261 22.67 21.94 22.00 22.06 22.11

+21.39 +21.44 +21.50 421.56 20.83 20.89 20.94 21.00 20.28 20.33 20.39 20.44 19.72 19.78 19:83 19.89 LOA W922 e128) 19:33

+18.61 +18.67 +18.72 +18.78 18106" 18-11) POls-17, Hule!22 L750) 2OLZ256 eLZOb Nal RG7 16.94 17.00 17.06 17.11 16.39 16.44 1650 16.56

+15.83 +-15.89 Ree 94 ae 00 +16.06 1528) CALSISS 39 44 15.50 14.72 14.78 14 83 14 89 14.94 1417 1422 1428 1433 14.39 PSG1) EVSIG7) WEISi72Z B1Si78) 13:83

+13.06 +13.11 +413. MY tee 22 +13.28

12.50 12.56 12.72 12.17 11.61 11.06

+10.44 +10.50 9.89 9.94 9.33 8.78

10.83

+10.28 9.72 9.17 8.61 8.06

+7.50 6.94 6.39 5.83 5.28

+4.72 4.17 3.61 3.06 2.50

+1.94 +1.39 +0.83 +0.28 —0.28

—0.83

9.78

22 TABLE 3 (CONTINUED)

FAHRENHEIT TO CENTIGRADE

heit 0 l 2 3 4 a "er 1 BG. SG. °C. °C. +30° —1.11 —1.06 —1.00 —0.94 —089 —0.83 29 N67 Gl 1.56 1.50 1.44 1.39

+25 —389 —3.83 —3.78 —3.72 —3.67 —3.61 24 444 439 433 428 4.22 4.17

23 5.00 494 489 483 4.78 4.72 22 556. 15:50 9544 (5:39 | 5.33 5.28 21 Gil 2 G06 26.00 " 5.94 © 5.89 5.83 +20 —667 —6.61 —6.56 —6.50 —644 —6.39 19 22 Veh? Sel 7.06 7.00 6.94 18 SIS eile © hO7 7-61 7.56 7.50 17 So) roes eee soley S.A 8.06 16 S82 PrS:6s 28.78 * 8:72 8.67 8.61 +15 —944 —939 —933 —9.28 —922 —9.17 9.78

+10 —12.22 —12.17 —12.11 —12.06 —12,00 —11.94

1278 S272 * 4267 12.61, 12:56 12.50 fo woes. ozs 81517 131) 13.06 13.69 ~ 13:83 © 13:78 13.72 13.67 13.61 14.44 1439 1433 14.28 14.22 14.17 + —15.00 —14.94 —14.89 —14.83 —14.78 —14.72 15.56 15.50 15.44 15.39 15.33 15.28 16.11 16.06 16.00 15.94 15.89 15.83 16.67 16.61 16.56 16.50 16.44 16.39 22, AvAG 7 — 17.06 17.00 16.94 + 1778 AZSZ 17.67 1761 A756 17.50

| WOONAW PWHHO CHNWHUN ANOWO | ry NI DRE Ts ADESSO pas BS RI OPA Aiea amas ioe) | —y N oO NW | —y NI oe Ne) | ry “NI Ne) > | —y wo S | _— oo S ON

6 °c. —0.78 1.33

28.72

—20 —28.89 —28.94 —29.00 —29.06 —29.11 —29.17 —29.22 —29.28 —29.33 —29.39

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 3 (CONTINUED)

23

FAHRENHEIT TO CENTIGRADE

ey) tA ee Ge 4

°c: {Os °G 2G; OG 20° —28.89 —28.94 —29.00 —29.06 —29.11 21 2944 2950 2956 2961 2967 22 3000 3006 3011 3017 3022 23 30.56 3061 30.67 3072 30.78 24 «31.11 31.17. 3122 31.28 31.33 25 —31.67 —31.72 —31.78 —31.83 —31.89 26 3222 3228 3233 3230 32.44 27. «32.78 +3283 ©3289 3294 33.00 28 3333 3330 3344 3350 33.56 29 3389 3394 3400 3406 3411 —30 —34.44 —34.50 —34.56 —34.61 —34.67 31 3500 3506 3511 3517 3522 32 35.56 35.61 3567 35:72 35.78 33 3611 3617 3622 3628 3633 34 36.67. «3672 :«36:78 «36.83 36.89 —35 —37.22 —37.28 —37.33 —37.39 —37.44 36 3778 3783 3789 3794 3800 37 38.33 «3839 «43844 «3850 38.56 38 3889 3894 39.00 30:06 30.11 39 39.44 39:50 3956 3061 39.67 —40 —40,00 —40.06 —40.11 —40.17 —40.22 41 40.56 40.61 40.67 40.72 40.78 42 4111 4117 4122 41.28 41.33 43 4167 4172 4178 41183 41.89 44. 4222 4228 4233 4230 42.44 —45 —42.78 —42.83 —42.89 —42.94 —43.00

46 43.33 43.39 43.44 43.50 43.56 47 43.89 43.94 44.00 44.06 44.11 48 44.44 4450 44.56 44.61 44.67 49 45.00 45.06 45.11 45.17 45.22 —50 —45.56 —45.61 —45.67 —45.72 —45.78 51 46.11 46.17 46.22 46.28 46.33 52 46.67 46.72 46.78 46.83 46.89 53 47.22 47.28 47.33 47.39 47.44 54 47.78 47.83 47.89 47.94 48.00 —55 —48.33 —48.39 —48.44 —48.50 —48.56 56 48.89 48.94 49.00 49.06 49.11 57 49.44 49.50 49.56 49.61 49.67 58 BOCs 50:06" 50.10" — 50.17) 50:22 59 50.56 0250.61) 250:67)).50.72. 50.78 —60 —51.11 —51.17 —51.22 —51.28 —51.33 61 Sod wol.7 2) 5.78. T5183 |) LOL89 62 62.225 052.28 52.33" 952.39. 92.44 63 D2.78,..02.83 52.89. (52.94 53.00 64 53:35) 93.39), 153.44) 953.50» 53.56 —65 —53.89 —53.94 —54.00 —54.06 —54.11 66 54.44 5450 54.56 5461 54.67 67 55:00 2:95:00) 259.11) °-55.17 955.22 68 BOO» 55.0l) £59.07. 959:72 | i5a.78 69 561s 7 56:17~ | 56.22" -56.28 . 36.33 —70 —56.67 —56.72 —56.78 —56.83 —56.89

25 6 7 8 9 eC; °c. 1c ne 1G. —29.17 —29.22 —29.28 —29.33 —29.39 29:72). 29.78. 29:83». 29.89 30.28 30.33 30.39 30.44 30.83 30.89 30.94 31.00 31.39 31.44 3150 31.56

—31.94 —32.00 —32.06 —32.11 $2.50} 492.56 32.61, "32.67 33 0GR SSI 33.17, 33-61% 1:33.67 | 33.72 34.17 34.22 34.28

—34.72 —34.78 —34.83 35.28 35.33 35.39 35.83 35.89 35.94 36.39 36.44 36.50 36.94 37.00 37.06

—37.50 —37.56 —37.61 38.06 38.11 38.17 38.61 38.67 38.72 39:17; 39:22. 39.28 39.72. 39.78 39.83

—40.28 —40.33 —40.39 —40.44 —40.50 40.83 40.89 40.94 41.39 41.44 41.50 41.94 42.00 42.06 42.50 42.56 42.61

—43.06 —43.11 —43.17 —43.22 —43.28 43.61 43.67 43.72 44.17 4422 44.28 44.72 4478 44.83 45.28 45.33 45.39

—45.83 —45.89 —45.94 —46.00 —46.06 46.39 46.44 46.50 46.94 47.00 47.06 47.50 47.56 47.61 48.06 48.11 48.17

—48.61 —48.67 —48.72 —48.78 49.17 49.22 49.72 49.78 50.28 30.33 50.83 50.89

—51.39 —51.44 —51.50 —51.56 —51.61 51.94 52.00 52.508 (52.00 93.06 P5311 53.61 53.67

—54.17 —54.22 —54.28 —54.33 —54.39 54.72 54.78 55.39 55.44

55.28) 099.33 : f 55.83 55.89 55.94 56.00 56.06 56.50 56.56

56.39 56.44 56.61 —56.94 —57.00 —57.06 —57.11 —57.17

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

24 TABLE 3 (CONCLUDED) FAHRENHEIT TO CENTIGRADE

heit 0 All 2 oO 4 °G “(Ce Sc: Ge Age —70° —56.67 —56.72 —56.78 —56.83 —56.89 71 SAL2L0 WM O7-25 M5740, AHD7-59 57-44 72 57.78 57.83 57.89 57.94 58.00 73 58.33 58.39 58.44 58.50 58.56 74 58.89 58.94 59.00 59.06 59.11

—75 —59.44 —59.50 —59.56 —59.61 —59.67 76 60.00 60.06 60.11 60.17 60.22 veh 60.56 60.61 60.67 60.72 60.78 78 GEIL VAOL AZ Ol-2Z20)61.28. 61.33 79 61.67 P6172) "61.78 “61.83 | 61.89

—80 —62.22 —62.28 —62.33 —62.39 —62.44 81 62.78 62.83 62.89 62.94 63.00 82 63.33 63.39 63.44 63.50 63.56 83 63.89 63.94 64.00 64.06 64.11 84 64.44 64.50 64.56 64.61 64.67

—85 —65.00 —65.06 —65.11 —65.17 —65.22 86 60,900 G0/01 (65:67 165.72) 65.78 87 66.11 66.17 66.22 66.28 66.33 88 66.67 66.72 66.78 66.83 66.89 89 67.22 67.28 67.33 67.39 67.44

—90 —67.78 —67.83 —67.89 —67.94 —68.00 91 68.33 68.39 68.44 68.50 68.56 92 68.89 68.94 69.00 69.06 69.11 93 69.44 69.50 69.56 69.61 69.67 94 70.00" “7006 70:11 7017. 70:22

—95 —70.56 —70.61 —70.67 —70.72 —70.78 96 AU AU eel 22. 71.28" sei less 97 MOD AL IZR LL: ON P7183 ese 98 WL2eh 2.29% 12.33) 12.39 1244 99 W248 12.83 1/289 12.94. 73:00

—100 —73.33 —73.39 —73.44 —73.50 —73.56 101 73.89 73.94 74.00 74.06 74.11 102 74.44 74.50 74.56 74.61 © 74.67 103 ADO0F BV9.009 BASALT, 75.17 pu 75i22 104 A500 uADOL. 79:67 «(75:72 7578

—105 —7611 —76.17 —76.22 —76.28 —76.33 106 76.67 76.72 76.78 76.83 76.89 107 TIAL Ln (GhL. 3S. 507.39 40.44 108 77.78 = =7783 77.89 77.94 78.00 109 78.33 78.39 78.44 7850 78.56

—110 —7889 —78.94 —79.00 —79.06 —79.11 111 79.44 79.50 79.56 79.61 79.67 112 80.00 80.06 80.11 80.17 80.22 113 80.56 80.61 80.67 80.72 80.78 114 Sil esli7 9822) 81:28 | 8t:33

—115 —81.67 —81.72 —81.78 —81.83 —81.89 116 82.22 82.28 82.33 82.39 82.44 117 82.78 82.83 82.89 82.94 83.00 118 83.33 83.39 83.44 83.50 83.56 119 83.89 83.94 84.00 84.06 84.11

—120 —84.44 —84.50 —84.56 —84.61 —84.67

SMITHSONIAN METEOROLOGICAL TABLES

AS) 6 ff 8 ui)

°C. ACs AG: Cc. AG —56.94 —57.00 —57.06 —57.11 —57.17 57.50); 957.56)! S761" "57-67 TRS772 58:06) 708. DIE SSAG i ase22 Be oees 50.61 58.67) 58:72) 58:78) + 58:83 99.17); 15922) |) 59:28) (1159133 Oy 5839

—59.72 —59.78 —59.83 —59.89 —59.94 60.28 60.33 60.39 60.44 60.50 60.83 60.89 60.94 61.00 61.06 61.39 61.44 61.50 61.56 61.61 61.94 62.00 62.06 62.11 62.17

—62.50 —62.56 —62.61 —62.67 —62.72 63.06) j'63.11 6317.'63:22 |°63.28 63:61. 63:67)" 63.72" (63:78 763183 64.17 64.22 6428 64.33 64.39 64.72 64.78 64.83 64.89 64.94

—65.28 —65.33 —65.39 —65.44 —65.50 65.83 65.89 65.94 66.00 66.06 66.39 66.44 66.50 66.56 66.61 66.94 67.00 67.06 67.11 67.17 67.50; 67.56. 67.01" = "67.67, "1G7-72

—68.06 —68.11 —68.17 —68.22 —68.28 68.61 68.67 68.72 68.78 68.83 69:17 9 69-22" (69:28 69:33 6169.39 69.72), 69:78 69.835 69:89 (s69194 70.28 =70.33. 70.39 70.44 = 70.50

—70.83 —70.89 —70.94 —71.00 —71.06 39) AL Ade 7150. 771.56 Sidon (L945 F2:00> 972.06; if ZAL pes 17 (2.0 ZOO 2: Ole P7201 anede 7300 fO1L C7317 73-22 1328

—73.61 —73.67 —73.72 —73.78 —73.83 74.17 7422 74.28 74.33 74.39 74.72 74.78 74.83 74.89 74.94 (D128) OSO DOD SLZOA4 ETO O0 75.83 75.89 75.94 76.00 76.06

—76.39 —76.44 —76.50 —76.56 —76.61 16.94 0.77.00'" (77.000 S77AL “S777 TAO eAeOO id Ole L074 Benne 78.061) V781L) 878.17. 97822 7828 78:01, 478:67 78.72 78:78 78:83

—79.17 —79.22 —79.28 —79.33 —79.39 79.72 79.78 79.83 79.89 79,94 80.28 80.33 80.39 80.44 80.50 80.83 80.89 80.94 81.00 81.06 81.39 81.44 81.50 81.56 81.61

—81.94 —82.00 —82.06 —82.11 —82.17 S2 50s BeZ00- 162/61 582.67 28272 S306 83:10 83.17, 83.22 183.28 83.61 83.67 83.72 83.78 83.83 84.17 8422 8428 8433 84.39

—84.72 —84.78 —84.83 —84.89 —84.94

Centi- grade

+100°

TABLE 4

CENTIGRADE TO FAHRENHEIT

0 By 2 3 4

°F. Sie. or. ob. or. +212.00 4+212.18 +-212.36 +212.54 4212.72 210.20 210.38 210.56 210.74 210.92 208.40 208.58 208.76 208.94 209.12 206.60 206.78 206.96 207.14 207.32 204.80 204.98 205.16 205.34 205.52

+203.00 +203.18 4+-203.36 +203.54 +203.72 201.20 201.38 201.56 201.74 201.92 199.40 199.58 199.76 199.94 200.12 197.60 197.78 197.96 198.14 198.32 195.80 195.98 196.16 196.34 196.52

+194.00 +194.18 +194.36 +194.54 +194.72 192.20 192.38 192.56 192.74 192.92 190.40 190.58 190.76 190.94 191.12 188.60 188.78 188.96 189.14 189.32 186.80 186.98 187.16 187.34 187.52

+185.00 +185.18 +185.36 +185.54 +185.72 183.20 183.38 183.56 183.74 183.92 181.40 181.58 181.76 181.94 182.12 179.60 179.78 178.96 180.14 180.32 177.80 177.98 178.16 178.34 178.52

+176.00 +176.18 +176.36 +176.54 +176.72 174.20 174.38 174.56 174.74 174.92 172.40 172.58 172.76 172.94 173.12 170.60 170.78 170.96 171.14 171.32 168.80 168.98 169.16 169.34 169.52

+167.00 +167.18 +167.36 +167.54 +167.72 165.20 165.38 165.56 165.74 165.92 163.40 163.58 163.76 163.94 164.12 161.60 161.78 161.96 162.14 162.32 159.80 159.98 160.16 160.34 160.52

ties 00 +158.18 +-158.36 ae 54 +158.72 156.20 156.38 156.56 156.74 156.92 154.40 154.58 154. 76 154.94 155.12 152.60 152.78 152.96 153.14 153.32 150.80 150.98 151.16 151.34 151.52 +149.00 +149.18 +-149.36 +149.54 +149.72 147.20 147.38 147.56 147.74 147.92 145.40 145.58 145.76 145.94 146.12

143.60 143.78 143.96 144.14 144.32 141.80 141.98 14216 142.34 142.52

+140.00 +140.18 +140.36 +140.54 +140.72 138.20 138.38 138.56 138.74 138.92 136.40 136.58 136.76 136.94 137.12 134.60 134.78 134.96 125.14 135.32 132.80 132.98 133.16 133.34 133.52

+131.00 +131.18 +131.36 +131.54 +131.72 129.20 129.38 129.56 129.74 129.92 127.40 127.58 127.76 127.94 128.12 125.60 125.78 125.96 126.14 126.32 123.80 123.98 124.16 124.34 124.52

+122.00 +122.18 4+122.36 +122.54 +122.72

Z5 5 6 y/ 8 9

+212.90 +213.08 4213.26 +213.44 4213.62 211.10 211.28 211.46 211.64 211.82 209.30 209.48 209.66 209.84 210.02 207.50 207.68 207.86 208.04 208.22 205.70 205.88 206.06 206.24 206.42

+203.90 +204.08 +204.26 +204.44 +-204.62 202.10 202.28 202.46 202.64 202.82 200.30 200.48 200.66 200.84 201.02 198.50 198.68 198.86 199.04 199.22 196.70 196.88 197.06 197.24 197.42

+194.90 +-195.08 +-195.26 +195.44 +195.62 193.10 193.28 193.46 193.64 193.82 191.30 191.48 191.66 191.84 192.02 189.50 189.68 189.86 190.04 190.22 187.70 187.88 188.06 188.24 188.42

+185.90 +186.08 4186.26 +186.44 4186.62 184.10 184.28 18446 184.64 184.82 182.30 182.48 182.66 182.84 183.02 180.50 180.68 180.86 181.04 181.22 178.70 178.88 179.06 179.24 179.42

+176.90 +177.08 +177.26 +177.44 +177.62 175.10 175.28 175.46 175.64 175.82 173.30 173.48 173.66 173.84 174.02 171.50 171.68 171.86 172.04 172.22 169.70 169.88 170.06 170.24 170.42

+167.90 +168.08 +168.26 +168.44 4168.62 166.10 166.28 166.46 166.64 166.82 164.30 164.48 164.66 164.84 165.02 162.50 162.68 162.86 163.04 163.22 160.70 160.88 161.06 161.24 161.42

+158.90 +159.08 +159.26 +159.44 4159.62 157.10 157.28 157.46 157.64 157.82 155.30 155.48 155.66 155.84 156.02 153.50 153.68 153.86 154.04 154.22 151.70 151.88 152.06 152.24 152.42

+149.90 +150. oS +150.26 +150.44 4150.62 148.10 148. 148.46 148.64 148.82 146.30 146. ‘8 146.66 146.84 147.02 144.50 144.68 144.86 145.04 145.22 142.70 142.88 143.06 143.24 143.42

+140.90 +141.08 +-141.26 +141.44 +141.62 139.10 139.28 139.46 139.64 139.82 137.30 137.48 137.66 137.84 138.02 135.50 135.68 135.86 136.04 136.22 133.70 133.88 134.06 134.24 134.42

+131.90 +132.08 +132.26 +132.44 4132.62 130.10 130.28 130.46 130.64 130.82 128.30 128.48 128.66 128.84 129.02 126.50 126.68 126.86 127.04 127.22 124.70 124.88 125.06 125.24 125.42

+122.90 +123.08 +123.26 +123.44 +123.62

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

26

Centi- grade

+50°

49 48 47 46

4.45 44 43 42 41

+40 39

PNwWAUO ANCOMWO

ob o

TABLE 4 (CONTINUED) CENTIGRADE TO FAHRENHEIT

0 ai! 2 a) 4

Ch Oe oi. hoy °F, (1) Ty +122.00 +-122.18 +122.36 +122.54 +-122.72 120.20 120.38 120.56 120.74 120.92 118.40 118.58 118.76 118.94 119.12 116.60 116.78 116.96 117.14 117.32 114.80 114.98 115.16 115.34 115.52

+113.00 +113.18 +113.36 +113.54 +113.72 PEUZOMS MSS SG 174 | HAT 92 109.40 109.58 109.76 109.94 110.12 107.60 107.78 107.96 108.14 108.32 105.80 105.98 106.16 106.34 106.52

+104.00 4104.18 sees 36 +104.54 +104.72

102.20 102.38 102.56 102.74 102.92 100. 40 100.58 100.76 100.94 101.12 98.60 98.78 98.96 99.14 99.32 96.80 96.98 97.16 97.34 97.52 +95.00 +95.18 +95.36 +95.54 +95.72 93:20)" 193:38) 5 093.561) 93.74 93102 91408 (OL SSiu iN O1-76.1 091.94 | a O2N2 89.60 89.78 89.96 90.14 90.32 87.80 87.98 88.16 88.34 88.52 +86.00 +86.18 +86.36 +86.54 +86.72 84.20 8438 8456 84.74 84.92 82.40 82.58 82.76 82.94 83.12 80.60 80.78 8096 81.14 81.32 78.80 (78.985. 97916) °79:34 {79:52 +77.00 +7718 +77.36 +77.54 +77.72 75:20 075:38)5) 975,00. 75.24 YZ52 73.408 1:73.58) | $73.76 | “73.94 \ 7A12 ZLG000 77805, L9G) 272.14 | S232 69.80 69.98 70.16 70.34 70.52 +68.00 +68.18 +68.36 +68.54 +68.72 66.20 66.38 66.56 66.74 66.92 64.40 64.58 64.76 64.94 65.12 62.60 62.78 62.96 63.14 63.32 60.80 60.98 61.16 61.34 61.52 +59.00 +59.18 +59.36 +59.54 +59.72 E720, (57-38) © 0.00 897.74 wore 55.40.) 55.58.) 55.76. 55.94 %562 53.60 53.78 53.96 54.14 54.32 51.80 0),.51.98i" $2.16. 52.34 52.92 +50.00 +50.18 +50.36 +50.54 +50.72 48.20 4838 48.56 48.74 48.92 46.40 46.58 46.76 46.94 47.12 4460 44.78 4496 45.14 45.32 42.80 42.98 43.16 43.34 43.52 +41.00 +41.18 +41.36 +41.54 +41.72 39.20 39.38 39.56 39.74 39.92 37.40 si), 37.58 2h. 37.76 WN 37.94 | Sez 35.60 35.78 35.96 36.14 36.32 33.80 33.98 34.16 34.34 34.52 432.00 +3218 +3236 +3254 +32.72

(continued)

SMITHSONIAN METEOROLOGICAL TABLES

a) 6 “lh 8 *

“1 Oe, En °E. SE +122.90 +123.08 +123.26 +123.44 +123.62 121.10 121.28 121.46 121.64 121.82 119.30 119.48 119.66 119.84 120.02 117.50 117.68 117.86 118.04 118.22 115.70 115.88 116.06 116.24 116.42

+113.90 +114.08 +-114.26 +114.44 +114.62

112.10 11228 112.46 112.64 112.82 110.30 110.48 110.66 110.84 111.02 108.50 108.68 108.86 109.04 109.22 106.70 106.88 107.06 107.24 107.42 +104.90 ee 08 fares 26 +105 44 +-105.62 103.10 103.28 46 103.64 103.82 101.30 101.48 101.66 101 84 102.02 99.50 99.68 99.86 100.04 100.22 97.70 97.88 98.06 98.24 98.42 +95.90 +96.08 +96.26 +96.44 +96.62 9410 94.28 9446 9464 94.82 92.30 92.48 92.66 9284 93.02 90.50 90.68 90.86 91.04 . 91.22 88.70 88.88 89.06 89.24 89.42 +86.90 +87.08 +87.26 +87.44 +87.62 85.10 85.28 85.46 85.64 85.82 83.30 83.48 83.66 83.84 84.02 81.50 81.68 81.86 82.04 82.22 79.70 79.88 80.06 80.24 80.42 +77.90 +78.08 +7826 +78.44 +78.62 76.10 76.28 7646 76.64 76.82 7430 7448 7466 7484 75.02 72.50 72.68 72.86 \ 73.04°>- 73.22 70.70 70.88 71.06 71.24 71.42 +68.90 +69.08 +69.26 +69.44 +69.62 67.10 67.28 67.46 67.64 67.82 65.30 6548 65.66 65.84 66.02 63.50 63.68 63.86 64.04 64.22 61.70 61.88 6206 6224 62.42 +59.90 +60.08 +60.26 +60.44 +-60.62 58.10 58.28 5846 58.64 58.82 56.30 56.48 56.66 56.84 57.02 54.50 54.68 5486 55.04 55.22 52.70 52.88 53.06 53.24 53.42 +50.90 +51.08 +51.26 +51.44 +51.62 49.10 49.28 4946 49.64 49.82 47.30 4748 47.66 47.84 48.02 45.50 45.68 45.86 46.04 46.22 43.70 43.88 44.06 4424 44.42 +41.90 +42.08 +42.26 +42.44 +42.62 40.10 40.28 4046 40.64 40.82 38.30 38.48 38.66 38.84 39.02 36:50 36.68" 36.86 37.04 >37.22 34.70 3488 35.06 35.24 35.42 +32.90 +33.08 +33.26 +33.44 +33.62

TABLE 4 (CONTINUED)

CENTIGRADE TO FAHRENHEIT

grade 0 all $e a 4

°F, Sh °F, oe oO —0° ea 00 Bey 82 iy 64 +31.46 +31.28 1 0.20 0.02 29.84 29.66 29.48 2 38. 40 38 22 58.04 27.86 27.68 3 26.60 26.42 26.24 2606 25.88 o 24.80 2462 2444 24.26 24.08 —5 +23.00 +22.82 +22.64 +22.46 +22.28 6 21.20 21.02 20.84 20.66 20.48 7 1940 1922 19.04 1886 1868 8 17.60 17.42 17.24 17.06 1688 9 15:80: 045.62 ©°.95.44 0115.26 ~ 1508 —10 +1400 +13.82 +13.64 +13.46 +13.28 11 12°20) 202 HA11.84 | 41.66. 1148 12 10.40 10.22 10.04 9.86 9.68 13 8.60 8.42 8.24 8.06 7.88 14 6.80 6.62 6.44 6.26 6.08 —15 +5.00 +482 +4464 +446 +428 16 +320 +3.02 +2.84 42.66 ++2.48 7 +140 +1.22 +1.04 40.86 +0.68 18 —0.40 —058 —0.76 —0.94 —1.12 19 —2.20 —2.38 —2.56 —2.74 —2.92 —20 —400 —418 —436 —454 —4.72 21 5.80 5.98 6.16 6.34 6.52 22 7.60 7.78 7.96 8.14 8.32 23 9.40 9.58 9.76 9.94 10.12 24 M2) Cdl38 Cobl56 9 174 TL92 —25 —13.00 —13.18 —13.36 —13.54 —13.72 26 14.80 004.98 261546 15.34 15:52 27 16:60" 16:78 ©916:96 917514 17.32 28 18.40 1858 1876 1894 19.12 29 20.20 20.38 20.56 20.74 20.92 —30 —22.00 —22.18 —22.36 —22.54 —22.72 31 23.80 ©'23.98 ~°24.16 \~~24.34 § 24.52 32 25.00 725.78. * 25.96 26,14 26.32 33 ZHAO WI27.58 C927.76 027.94 28.12 34 29.20 29.38 29.56 29.74 29.92 —35 —31.00 —31.18 —31.36 —31.54 —31.72 36 32,00 13298 £033.16". 33.34 | * 33.52 37 34:60: VESEIS8 993496 9F35:14 35.32 38 36.40 36:58 2 736:76 °° 136.94 37.12 39 38.20 38.38 38.56 38.74 38.92 —40 —40.00 —40.18 —40.36 —40.54 —40.72 41 41.80 41.98 4216 4234 42.52 42 43.60 43.78 43.96 4414 44.32 43 45.40 45.58 45.76 45.94 46.12 44 47.20 4738 47.56 47.74 47.92 —45 —49.00 —49.18 —49.36 —49.54 —49.72 46 50:80 850-98 O95216 51-34 $2:52 47 52:60 652-78. ©5296 “53:14 53.32 48 54.40 5458 54.76 5494 55.12 49 56.20 56.38 56.56 56.74 56.92 —50 —58.00 —58.18 —58.36 —58.54 —58.72

(continued)

MITHSONIAN METEOROLOGICAL TABLES

27

5 6 vf 8 a

oR; oF. °F, a re EAE +31.10 +30.92 teen +30.56 +30.38 29:0) 29.42 8.94 28.76 28.58 27.90 27.32 9 14 26.96 26.78 29./0'* 25.52: 25.34 )"25.16, 24.98 23:90 "23.72 923.54 ©2336 “2318 +22.10 +21.92 +21.74 +21.56 +21.38 20.30 20.12," 19.94.1976 19/58 18.50) OY 18.52: 1B 14 VOT 9G A778 16.70 1652 1634 16.16 15.98 14.90 14.72 1454 1436 14.18 +13.10 +12.92 +12.74 +12.56 +12.38 1.30 A ELIZ 9 10.94.0910.76, 10.58 9.50 9.32 9.14 8.96 8.78 7.70 7.52 7.34 7.16 6.98 5.90 5.72 5.54 5.36 5.18 +410 +3.92 +3.74 +3.56 +3.38 42.30 4212 +1.94 +1.76 +1.58 +0.50 +032 +014 —0.04 —0.22 —130 —148 —1.66 —184 —2.02 —3.10 —3.28 —346 —3.64 —3.82 —4.90 —5.08 —5.26 —544 —5.62 6.70 6.88 7.06 7.24 7.42 8.50 8.68 8.86 9.04 9.22 10.30 1048 10.66 1084 11.02 12:10 12:28 — 1246 -°12:64 12:82 —13.90 —14.08 —14.26 —14.44 —14.62 15:70: 15.88 "16.06 91624 16:42 17.50 1768 ~ 17.86 “1804 | 1822 19.30 1948 19.66 19.84 20.02 20.10 “20.28 © 2046 221.64 21:82 —22.90 —23.08 —23.26 —-23.44 —23.62 24.70 2488 25.06 25.24 25.42 26.50 26.68 26.86 27.04 27.22 28.30 28.48 28.66 28.84 29.02 30.10 30.28 3046 30.64 30.82 —31.90 —32.08 —32.26 —32.44 —32.62 33.70 33.88 34.06 3424 34.42 35:00 35:68 © 35.86 3604 36,22 37.30 37.48 37.66 37.84 38.02 39:10: '-39:28 39.46. \-39:64 39:82 —40.90 —41.08 —41.26 —41.44 —41.62 42.70 4288 43.06 43.24 43.42 44.50 4468 4486 45.04 45.22 46.30 4648 46.66 46.84 47.02 48.10 48.28 48.46 48.64 48.82 —49.90 —50.08 —50.26 —50.44 —50.62 570 “1 5E-88 52:06 "95224 5242 53.50 53.68 53.86 54.04 54.22 55.30 55.48 55.66 55.84 56.02 57.10 57.28 57.46 57.64 57.82 —58.90 —59.08 —59.26 —59.44 —59.62

TABLE 4

(CONCLUDED)

CENTIGRADE TO FAHRENHEIT

0 | 2 3 4 —58.00 —58.18 —58.36 —58.54 —58.72 59.80 59.98 60.16 60.34 60.52 61.60 61.78 61.96 62.14 62.32 63.40 63.58 63.76 63.94 64.12 65.20. 65.38 65.56 65.74 65.92 —67.00 —67.18 —67.36 —67.54 —67.72 68.80 68.98 69.16 69.34 69.52 70:60... 70.78 70.96 71.14 71.32 AZAD AP 72.589) 72.76 1 72.94 73.12 74.20 74.38 74.56 74.74 74.92 —76.00 —76.18 —76.36 —76.54 —76.72 ZASO RM 7,98 8 17-10) I) 70:04, BOs 79.60 79.78 79.96 80.14 80.32 81.40.) 81-58) 81.76.8194 82.12 83.20 83.38 83.56 83.74 83.92 —85.00 —85.18 —85.36 —85.54 —85.72 86.80 86.98 87.16 87.34 87.52 $8.60 8878 8896 989.14 89.32 90:40) i 90/58) 79 '90:76. | 90.94. (91.12 92.20) Wh 92.38 py 92-90 692.74 92:92 —94.00 —94.18 —94.36 —94.54 —94.72 95.80 95.98. 96.16 96.34 96.52 97.60 pn 97-78) 197-96.) 98.14 98.32 99:40 » 99.58 99.76 99.94 100.12

101.20 101.38 101.56 101.74 101.92

—103.00 —103.18 —103.36 —103.54 —103.72 104.80 104.98 105.16 105.34 105.52 106.60 106.78 106.96 107.14 197.32 108.40 108.58 108.76 108.94 109.12 110.20 110.38 110.56 110.74 110.92

—112.00 —112.18 —112.36 —112.54 —112.72 113.80 113.98 114.16 114.34 114.52 115.60 115.78 115.96 116.14 116.32 117.40 117.58 117.76 117.94 118.12 119.20 119.38 119.56 119.74 119.92

—121.00 —121.18 —121.36 —121.54 —121.72 12280) 122.98: 0t23.16 | 123.34 123.52 124.60 124.78 124.96 125.14 125.32 126.40 126.58 126.76 126.94 127.12 128.20 128.38 128.56 128.74 128.92

—130,00 —130.18 —130.36 —130.54 —130.72 1380) S198, 2152.16. 9132.34 132:52 133.60 133.78 133.96 134.14 134.32 135.40 135.58 135.76 135.94 136.12 13720) el37238) 37:56 1137.74 137-92

—139.00 —139.18 —139.36 —139.54 —139.72 140.80 140.98 141.16 141.34 141.52 142.60 142.78 142.96 143.14 143.32 144.10 144.58 144.76 144.94 145.12 146.20 146.38 146.56 146.74 146.92

—148.00 —148.18 —148.36 —148.54 —148.72

SMITHSONIAN METEOROLOGICAL TABLES

5. 6 vf 8 ae)

“15 “54 °F. “106 °F. —58.90 —59.08 —59.26 —59.44 —59.62 60.70 60.88 61.06 61.24 61.42 62.50 62.68 62.86 63.04 63.22 64.30 64.48 6466 64.84 65.02 66.10 66.28 66.46 66.64 66.82 —67.90 —68.08 —68.26 —68.44 —68.62 69.70 69.88 70.06 70.24 70.42 71.50 3): 21.68.) 21-86 7 72:04, 7222 73.30 73.48 73.66 73.84 74.02 79.10 75.28 75.46 1575.64 75.82 —76.90 —77.08 —77.26 —77.44 —77.62 78.70 7888 79.06 79.84 79.42 80.50 80.68 80.86 81.04 81.22 82.30 82.48 82.66 82.84 83.02 8410 8428 8446 8464 84.82 —85.90 —86.08 —86.26 —86.44 —86.62 87.70 87.88 88.06 88.24 88.42 89.50 89.68 89.86 90.04 90.22 91.30 9148 91.66 \. 984" 92:02 93.10 93.28 93.46 93.64 93.82 —94.90 —95.08 —95.26 —95.44 —95.62 96.70 96.88 97.06 97.24 97.42 98.50 98.68 9886 99.04 99.22 100.30 100.48 100.66 100.84 101.02 102.10 102.28 10246 102.64 102.82 —103.90 —104.08 —104.26 —104.44 —104.62 105.70 105.88 106.06 106.24 106.42 107.50 107.68 107.86 108.04 108.22 109.30 109.48 109.66 109.84 110.02 VILAO. ALIN28 G1TT46° elites" aes2 —112.90 —113.08 —113.26 —113.44 —113.62 114.70 11488 115.06 115.24 115.42 116.50 116.68 116.86 117.04 117.22 118.30 11848 118.66 118.84 119.02 120.10 120.28 120.46 120.64 120.82 —121.90 —122.08 —122.26 —122.44 —122.62 123.70 123.88 124.06 124.24 124.42 125.50 125.68 125.86 126.04 126.22 127.30 127.48 127.66 127.84 128.02 129.10 129.28 129.46 129.64 129.82

—130.90 —131.08 —131.26 —131.44 —131.62 132.70 132.88 133.06 133.24 133.42 134.50 134.68 134.86 135.04 135.22 136.30 136.48 136.66 136.84 137.02 138.10 138.28 138.46 138.64 138.82

—139.90 —140.08 —140.26 —140.44 —140.62 141.70 141.88 142.06 142.24 142.42 143.50 143.68 143.86 144.04 144.22 145.30 145.48 145.66 145.84 146.02 147.10 147.28 147.46 147.64 147.82

—148.90 —149.08 —149.26 —149.44 —149.62

DIFFERENCES FAHRENHEIT TO DIFFERENCES CENTIGRADE

Fahr

HAE 0 oc: 0° 0.00 1 0.56 1.11 3 1.67 4 2.22 5 2.78 6 3:35 7 3.89 8 4.44 9 5.00 10 5.56 11 6.11 12 6.67 13 MRED 14 7.78 15 8.33 16 8.89 17 9.44 18 10.00 19 10.56 20 WL

DIFFERENCES CENTIGRADE TO DIFFERENCES

A | Sc: 0.06

RS

90) = SUNG ON Cass nook Bonne

iss) COnnred

2

°¢. 0.11 0.67

3 Ae 0.17

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 5

DAKUN DoNR OD

& CO

CON AAN np pot as

SCpowN CORO

TABLE 6

3.11

_ SONS) COTS OO SINS OU WoOnmNnN FOr Oo WONn™N

.

10.89 11.44

FAHRENHEIT

nN Ke)

°

9 DNNAA MNAROW NNO REQ

CO NWNREAO MoOWwWod NEO CONNER OBROBO NNE

Ww

30

TABLE 7

CENTIGRADE DEGREES PER KILOMETER TO FAHRENHEIT DEGREES PER

ee

1000 ft.

0.00 0.55 1.10 1.65 Z.19

2.74 3.29 3.84 4.39 4.94

OONAW PWNS

1000 ft.

0.05

FAHRENHEIT DEGREES

WOONAMW RWNHO Ke) —_ —

1000 FEET SC. dS 1 ar = 0.54864 7000 ft.

Wee ES 4 1)

ors °F, LDS 156 1000 ft. 1000 ft. 1000 ft. 1000 ft. 0.11 0.16 0.22 0.27 0.66 0.71 0.77 0.82 1.21 1.26 1.32 137 1.76 1.81 1.87 1.92 2.30 2.36 2.41 2.47 2.85 2.91 2.96 3.02 3.40 3.46 3.51 3.57 3.95 4.01 4.06 4.11 4.50 4.55 4.61 4.66 5.05 5.10 5.16 5.21

TABLE 8 KILOMETER SRS an SC 1 7000 ft. — 1.82269 in.

2 as) 4 5 °C. es SG; (Gn km. “km. km. km.

0.36 0.55 0.73 0.91 2.19 2.37 2.55 PAS 4.01 4.19 4.37 4.56 5.83 6.01 6.20 6.38 7.66 7.84 8.02 8.20 9.48 9.66 9.84 10.02 1130) VES. 67, 11.85 132") S31) 13'49 13.67 VOSS! 15:3 15.49 1677 1695) 17213 ISA

PER 1000 FEET TO CENTIGRADE DEGREES

SMITHSONIAN METEOROLOGICAL TABLES

o ° F,

1000 ft.

0.33

Ore aN

5

Sy UNTO ALD

a 8 “10 tie 1000 ft. 1000 ft. 0.38 0.44 0:93) 80.99 148 1.54 2:03\ 72208 298 203 315 3.18 S68) Uesi7S 422 4.28 4.77 4.83 B32. 9 eaa8

1000 ft. 0.49 1.04 1.59

PER

TABLE 9 INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars.

In. Hg. .00 01 02 03 .04 05 .06 .07 mb. mb. mb. mb. mb. mb. mb. mb. 0.00 0.00 0.34 0.68 1.02 1.35 1.69 2.03 2.37 10 3.39 3.73 4.06 4.40 4.74 5.08 5.42 5.76 .20 6.77 ZA 7.45 7.79 8.13 8.47 8.80 9.14 30 10.16 10.50 10.84 11.18 11.51 TESS 219° e253 40 13.55 13.88 1422 14.56 14.90 15.24 15.58 15.92 0.50 1693) 727, SUG F795: T1829 18.63 18.96 19.30 60 20:32 “2066. Z00) 21833) | 21867 ZA0K 922335, 722/69 70 23.70 24.04 24.38 24.72 25.06 25.40 25.74 26.08 80 2709) 2743" E2777 W281 28:45 28.78 29.12 29.46 90 30:48 30:82) “31:15 %31749:' ~ 31-83 S217 “S251 T3285 1.00 33.86 3420 34.54 34.88 35.22 3956 39:90 36.23 1.10 S725 Taroo -3/935 “3827 |/38:60 38.94 39.28 39.62 1.20 40.64 40.98 41.31 41.65 41.99 42.33 42.67 43.01 1.30 44.02 4436 44.70 45.04 45.38 45.72 46.05 46.39 1.40 47.41 47.75 48.09 48.43 48.76 49.10 49.44 49,78 1.50 BOSO) aolets Bala e5iisl) e525 52.49 52.83 53.17 1.60 54.18 5452 5486 55.20 55.54 Boiss esol) 156.55 1.70 57. sole E5825) BoSoS) Boos 59.26 59.60 59.94 1.80 60.96 61.29 61.63 61.97 62.31 62.65 62.99 63.33 1.90 64.34 64.68 65.02 65.36 65.70 66.03 66.37 66.71 2.00 67.73 68.07 68.41 68.74 69.08 69.42 69.76 70.10 2.10 AIS eas EAeA9) R723) 72:47. W280 (7/315) “F348 2.20 7450) “7A84 S7518) 375152 | 75:86 76.19 76.53 76.87 2.30 77.89 78.23 78.56 78.90 79.24 79.58 79.92 80.26 2.40 81.27. 81.61 81.95 82.29 82.63 82.97 83.31 83.64

2.50 84.66 85.00 85.34 85.68 86.01 86.35 86.69 87.03 2.60 88.05 88.38 88.72 89.06 89.40 89.74 90.08 90.42 2.70 9143 91.77 9211 9245 92.79 93.13 93.46 93.80 2.80 94.82 95.16 95.50 95.83 96.17 96.51 96.85 97.19 2.90 98.21 98.54 98.88 99.22 99.56 99.90 100.24 100.58

3.00 101.59 101.93 102.27 102.61 10295 103.28 103.62 103.96 3.10 104.98 105.32 105.66 105.99 106.33 106.67 107.01 107.35 3.20 10836 108.70 109.04 109.38 109.72 110.06 110.40 110.73 Ss0ne lic/5- 1200 12.43° 112.77 113,11 113.44 113.78 114.12 3.40 115.14 115.48 115.81 116.15 11649 116.83 117.17 117.51

3.50 118.52 118.86 119.20 119.54 119.88 120.22 120.56 120.89 S.605- 120-91 12225 122.59 12293. 123.26 123.60 123.94 124.28 3.70 125.30 125.64 125.97 126.31 126.65 126.99 127.33 127.67

3.80 128.68 129.02 129,36 129.70 130.04 130.38 130.71 131.05 3.90 132.07 132.41 132.75 133.09 133.42 133.76 134.10 134.44 4.00 135.46 135.79 136.13 136.47 13681 137.15 137.49 137.83 410 138.84 139.18 139.52 139.86 14020 140.54 14087 141.21 420 142.23 14257 14291 14324 143.58 14392 14426 144.60 430 145.61 145.95 146.29 146.63 146.97 147.31 147.65 147.99 440 149.00 149.34 149.68 150.02 150.36 150.69 151.03 151.37 . 4.50 152.39 152.73 153.06 153.40 15374 154.08 154.42 154.75 460 155.77 156.11 156.45 156.79 157.13 157.47 157.81 15814 470 159.16 159.50 159.84 160.18 160.51 16085 161.19 161.53 480 162.55 16289 163.22 163.56 16390 164.24 164.58 164.92 490 165.93 166.27 166.61 166.95 167.29 167.63 167.96 168.30

5.00 169.32 169.66 170.00 170.34 170.67 1700 17135" 17069 (continued)

in. Hg. .001 .002 .003 .004 .005 .006 .007

Proportional parts mb O8trs 07 10rn alae aoe) 20), 24

SMITHSONIAN METEOROLOGICAL TABLES

32

In. Hg. .00 01 mb. mb. 5.00 169.32 169.66 5.10 172.71 173.04 5.20 176.09 176.43 5.30 179.48 179.82 182.87 183.20

186.25 186.59 189.64 189.98 193.02 193.36 196.41 196.75 199.80 200.14

203.18 203.52 206.57 206.91 209.96 210.29 213.34 213.68 216.73 217.07

220.12 220.45 223.50 223.84 226.89 227.23 230.27 230.61 233.66 234.00

237.05 237.39 240.43 240.77 243.82 244.16 247.21 247.55 250.93

253.98 254.32 207,37 297-10 260.75 261.09 264.14 264.48 267.52 267.86

270.91 271.25 274.30 274.64 277.68 278.02 281.07 281.41 284.46 284.80

287.84 288.18 291.23 291.57 294.62 294.95 298.00 298.34 301.39 301.73

304.78 305.11 308.16 308.50 SESS). SURO 314.93 315.27 318.32 318.66

321-71, 322.05 325.09 325.43 328.48 328.82 331.87 332.20 $35.25) 33:59,

338.98

WHO OMNAwN wye Du : SS8SS SSSS8S SSSSS SSSSS SSSS8S SSBSS SSSSS SSBSESE SS33s 8 i) ou So on No)

OOD {030103010 0090009000 9000900090 NINNINNE NNINNINE DAAAD AKHAAAKA nunmnn om

COBNUDMH BWHHO ODNAUM BWHHEO OBNAM DW

—y So =e =) WwW w i) CON >

Proportional parts

02 mb. 170.00 173.38 176.77 180.16 183.54

186.93 190.32 193.70 197.09 200.47

203.86 207.25 210.63 214.02 217.41

220.79 224.18 227.57 230.95 234.34

237.72 241.11 244.50 247.88 251.27

254.66 258.04 261.43 264.82 268.20

271259 274.97 278.36 281.75 285.13

288.52 291.91 295.29 298.68 302.07

305.45 308.84 SIZ2Z3 315.61 319.00

322.38 320-07, 329.16 332.54 335.93

339.32

in. Hg. mb.

TABLE 9 (CONTINUED) INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars.

03 mb. 170.34 173.72 WEL 180.49 183.88

187.27 190.65 194.04 197.43 200.81

204.20 207.59 210.97 214.36 217.74

221.13 224.52 227.90 231.29 234.68

238.06 241.45 244.84 248.22 251.61

255.00 258.38 261.77 265.15 268.54

271.93 275.31 278.70 282.09 285.47

288.86 292.25 295.63 299.02 302.40

305.79 309.18 312.56 315.95 319.34

322.72 326.11 329.50 332.88 336.27

339.65

.001 .03

SMITHSONIAN METEOROLOGICAL TABLES

.04 mb. 170.67 174.06 177.45 180.83 184.22

187.61 190.99 194.38 197.77 201.15

204.54 207.92 211.31 214.70 218.08

221.47 224.86 228.24 231.63 235.02

238.40 241.79 245.17 248.56 251.95

255.08 258.72 262.11 265.49 268.88

272.27 275.65 279.04 282.42 285.81

289.20 292.58 295.97 299.36 302.74

306.13 309.52 312.90 316.29 319.68

323.06 326.45 329.83 333.22 336.61

339.99

(continued)

05

mb. 171.01 174.40 177.79 181.17 184.56

187.94 191.33 194.72 198.10 201.49

204.88 208.26 211.65 215.04 218.42

221.81 229.19 228.58 231.97 235.35

238.74 242.13 245.51 248.90 252.29

255.67 259.06 262.45 265.83 269.22

272.60 275.99 279.38 282.76 286.15

289.54 292.92 296.31 299.70 303.08

306.47 309.85 313.24 316.63 320.01

323.40 326.79 330.17 333.56 336.95

340.33

06

mb. 171.35 174.74 178.12 181.51 184.90

188.28 191.67 195.06 198.44 201.83

205.22 208.60 211.99 215.37 218.76

22215 225.53 228.92 232.31 235.69

239.08 242.47 245.85 249.24 252.62

256.01 259.40 262.78 266.17 269.56

272.94 276.33 279.72 283.10 286.49

289.87 293.26 296.65 300.03 303.42

306.81 310.19 313.58 316.97 320.35

323.74 327.43 330.51 333.90 337.28

340.67

.07 mb. 171.69 175.08 178.46 181.85 185.24

188.62 192.01 195.39 198.78 202.17

205.55 208.94 212.33 215.71 219.10

222.49 225.87 229.26 232.64 236.03

239.42 242.80 246.19 249.58 252.96

256.35 259.74 263.12 206.51 269.90

273.28 276.67 280.05 283.44 286.83

290.21 293.60 296.99 300.37 303.76

307.15 310.53 313.92 317.30 320.69

324.08 327.46 330.85 334.24 337.62

341.01

002.003 .004 .005 .006 .007

O75. 10

14

zee 20

.24

08

mb. 172.03 175.41 178.80 182.19 185.57

188.96 192.35 195.73 199.12 202.51

205.89 209.28 212.67 216.05 219.44

222.82 226.21 229.60 232.98 236.37

239.76 243.14 246.53 249.92 253.30

256.69 260.07 263.46 266.85 270.23

273.62 277.01 280.39 283.78 287.17

290.55 293.94 297.32 300.71 304.10

307.48 310.87 314.26 317.64 321.03

324.42 327.80 331.19 334.58 337.96

341.35

.09 mb. 172.37 175.75 179.14 182.53 185.91

189.30 192.69 196.07 199.46 202.84

206,23 209.62 213.00 216.39 219.78

223.16 226.55 229.94 233.32 236.71

240.09 243.48 246.87 250.25 253.64

257.03 260.41 263.80 267.19 270.57

273.96 277.35 280.73 284.12 287.50

290.89 294.28 297.66 301.05 304.44

307.82 311.21 314.60 317.98 321.37

324.75 328.14 331-53 334.91 338.30

341.69

008 .009 27? 230

TABLE 9 (CONTINUED) 33 INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars. In. Hg. .00 01 02 .03 04 05 .06 .07 08 09 mb. mb. mb. mb. mb. mb. mb. mb. mb. mb. 10.00 338.64 338.98 339.32 339.65 339.99 340.33 340.67 341.01 341.35 341.69 10.10 342.03 342.36 342.70 343.04 343.38 343.72 344.06 344.40 344.73 345.07 10.20 345.41 345.75 346.09 346.43 346.77 347.10 347.44 347.78 348.12 348.46 10.30 348.80 349.14 349.48 349.81 350.15 350.49 350.83 351.17 351.51 351.85 10.40 352.18 352.52 352.86 353.20 353.54 353.88 354.22 354.55 354.89 355.23 10.50 355.57 355.91 356.25 356.59 356.93 357.26 357.60 357.94 358.28 358.62 10.60 358.96 359.30 359.63 359.97 360.31 360.65 360.99 361.33 361.67 362.00 10.70 362.34 362.68 363.02 363.36 363.70 364.04 364.38 364.71 365.05 365.39 10.80 365.73 366.07 366.41 366.75 367.08 367.42 367.76 368.10 368.44 368.78 10.90 369.12 369.46 369.79 370.13 370.47 370.81 371.15 371.49 371.83 372.16 11.00 372.50 372.84 373.18 373.52 373.86 374.20 374.53 374.87 375.21 375.55 11.10 375.89 376.23 376.57 376.91 377.24 377.58 377.92 378.26 378.60 378.94 11.20 379.28. 379.61 379.95 380.29 380.63 380.97 381.31 381.65 381.98 382.32 11.30 382.66 383.00 383.34 383.68 384.02 384.36 384.69 385.03 385.37 385.71 11.40 386.05 386.39 386.73 387.06 387.40 387.74 388.08 388.42 388.76 389.10 11.50 389.43 389.77 390.11 390.45 390.79 391.13 391.47 391.81 392.14 392.48 11.60 392.82 393.16 393.50 393.84 394.18 394.51 394.85 395.19 395.53 395.87 11.70 396.21 396.55 396.88 397.22 397.56 397.90 398.24 398.58 398.92 399.26 11.80 399.59 399.93 400.27 400.61 400.95 401.29 401.63 401.96 402.30 402.64 11.90 402.98 403.32 403.66 404.00 404.33 404.67 405.01 405.35 405.69 406.03 12.00 406.37 406.71 407.04 407.38 407.72 408.06 408.40 408.74 409.08 409.41 12.10 409.75 410.09 410.43 410.77 411.11 411.45 411.78 412.12 412.46 412.80 12.20 413.14 413.48 413.82 414.16 414.49 414.83 415.17 415.51 415.85 416.19 12.30 416.53 416.86 417.20 417.54 417.88 418.22 418.56 418.90 419.23 419.57 12.40 419.91 420.25 420.59 420.93 421.27 421.61 421.94 422.28 422.62 422.96 12.50 423.30 423.64 423.98 424.31 424.65 424.99 425.33 425.67 426.01 426.35 12.60 426.69 427.02 427.36 427.70 428.04 428.38 428.72 429.06 429.39 429.73 12.70 430.07 430.41 430.75 431.09 431.43 431.76 432.10 432.44 432.78 433.12 12.80 433.46 433.80 434.14 434.47 434.81 435.15 435.49 435.83 436.17 436.51 12.90 436.84 437.18 437.52 437.86 438.20 438.54 438.88 439.21 439.55 439.89 13.00 440.23 440.57 440.91 441.25 441.59 441.92 44226 442.60 442.94 443.28 13.10 443.62 443.96 444.29 44463 444.97 445.31 445.65 445.99 446.33 446.66 13.20 447.00 447.34 447.68 448.02 448.36 448.70 449.04 449.37 449.71 450.05 13.30 450.39 450.73 451.07 451.41 451.74 452.08 452.42 452.76 453.10 453.44 13.40 453.78 454.11 454.45 454.79 455.13 455.47 455.81 456.15 456.49 456.82 13.50 457.16 457.50 457.84 458.18 458.52 458.86 459.19 459.53 459.87 460.21 13.60 460.55 460.89 461.23 461.56 461.90 462.24 462.58 462.92 463.26 463.60 13.70 463.94 464.27 464.61 464.95 465.29 465.63 465.97 466.31 466.64 466.98 13.80 467.32 467.66 468.00 468.34 468.68 469.01 469.35 469.69 470.03 470.37 13.90 470.71 471.05 471.39 471.72 472.06 472.40 472.74 473.08 473.42 473.76 14.00 474.09 474.43 474.77 475.11 475.45 475.79 476.13 476.46 476.80 477.14 14.10 477.48 477.82 478.16 478.50 478.84 479.17 479.51 479.85 480.19 480.53 14.20 480.87 481.21 481.54 481.88 482.22 482.56 482.90 483.24 483.58 483.91 14.30 484.25 484.59 484.93 485.27 485.61 485.95 486.29 486.62 486.96 487.30 14.40 487.64 487.98 488.32 488.66 488.99 489.33 489.67 490.01 490.35 490.69 14.50 491.03 491.37 491.70 492.04 492.38 492.72 493.06 493.40 493.74 494.07 14.60 494.41 494.75 495.09 495.43 495.77 496.11 496.44 496.78 497.12 497.46 14.70 497.80 498.14 498.48 498.82 499.15 499.49 499.83 500.17 500.51 500.85 14.80 501.19 501.52 501.86 502.20 502.54 502.88 503.22 503.56 503.89 504.23 14.90 504.57 504.91 505.25 505.59 505.93 506.27 506.60 506.94 507.28 507.62 15.00 507.96 508.30 508.64 508.97 509.31 509.65 509.99 510.33 510.67 511.01 (continued) : in. Hg. .001 .002 .003 .004 .005 .006 .007 .008 .009 Proportional parts wb, O30) 07. 30%. 1a er oy. daar optrlgs

SMITHSONIAN METEOROLOGICAL TABLES

34 TABLE 9 (CONTINUED) INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars. In. Hg. .00 01 02 .03 .04 05 .06 .07 .08 .09

mb. mb. mb. mb. mb. mb. mb. mb. mb. mb. 15.00 507.96 508.30 508.64 508.97 509.31 509.65 509.99 510.33 510.67 511.01 15.10 511.34 511.68 512.02 512.36 512.70 513.04 513.38 513.72 514.05 514.39 15.20 514.73 515.07 515.41 515.75 516.09 516.42 516.76 517.10 517.44 517.78 15.30 518.12 518.46 518.79 519.13 519.47 519.81 520.15 520.49 520.83 521.17 15.40 521.50 521.84 522.18 522.52 522.86 523.20 523.54 523.87 524.21 524.55

15.50 524.89 525.23 525.57 525.91 526.24 526.58 526.92 527.26 527.60 527.94 15.60 528.28 528.62 528.95 529.29 529.63 529.97 530.31 530.65 530.99 531.32 15.70 531.66 532.00 532.34 532.68 533.02 533.36 533.69 534.03 534.37 534.71 15.80 535.05 535.39 535.73 536.07 536.40 536.74 537.08 537.42 537.76. 538.10 15.90 538.44 538.77 539.11 539.45 539.79 540.13 540.47 540.81 541.14 541.48

16.00 541.82 54216 542.50 542.84 543.18 543.52 543.85 544.19 544.53 544.87 16.10 545.21 545.55 545.89 546.22 546.56 546.90 547.24 547.58 547.92 548.26 16.20 548.60 548.93 549.27 549.61 549.95 550.29 550.63 550.97 551.30 551.64 16.30 551.98 552.32 552.66 553.00 553.34 553.67 554.01 554.35 554.69 555.03 16.40 555.37 555.71 556.05 556.38 556.72 557.06 557.40 557.74 558.08 558.42

16.50 558.75 559.09 559.43 559.77 560.11 560.45 560.79 561.12 561.46 561.80 16.60 562.14 562.48 562.82 563.16 563.50 563.83 564.17 564.51 564.85 565.19 16.70 565.53 565.87 566.20 566.54 566.88 567.22 567.56 567.90 568.24 568.57 16.80 568.91 569.25 569.59 569.93 570.27 570.61 570.95 571.28 571.62 571.96 1690 572.30 572.64 572.98 573.32 573.65 573.99 574.33 574.67 575.01 575.35

17.00 575.69 576.02 576.36 576.70 577.04 577.38 577.72 578.06 578.40 578.73 17.10 579.07 579.41 579.75 580.09 580.43 580.77 581.10 581.44 581.78 582.12 17.20 582.46 582.80 583.14 583.47 583.81 584.15 584.49 584.83 585.17 585.51 17.30 585.85 586.18 586.52 586.86 587.20 587.54 587.88 588.22 588.55 588.89 17.40 589.23 589.57 589.91 590.25 590.59 590.92 591.26 591.60 591.94 592.28

17.50 592.62 592.96 593.30 593.63 593.97 594.31 594.65 594.99 595.33 595.67 17.60 596.00 596.34 596.68 597.02 597.36 597.70 598.04 598.37 598.71 599.05 17.70 599.39 599.73 600.07 600.41 600.75 601.08 601.42 601.76 602.10 602.44 17.80 602.78 603.12 603.45 603.79 604.13 604.47 604.81 605.15 605.49 605.82 17.90 606.16 606.50 606.84 607.18 607.52 607.86 608.20 608.53 608.87 609.21

18.00 609.55 609.89 610.23 610.57 610.90 611.24 611.58 611.92 612.26 612.60 18.10 612.94 613.28 613.61 613.95 614.29 614.63 614.97 615.31 615.65 615.98 18.20 616.32 616.66 617.00 617.34 617.68 618.02 618.35 618.69 619.03 619.37 18.30 619.71 620.05 620.39 620.73 621.06 621.40 621.74 622.08 622.42 622.76 18.40 623.10 623.43 623.77 624.11 624.45 624.79 625.13 625.47 625.80 626.14

18.50 626.48 626.82 627.16 627.50 627.84 628.18 628.51 628.85 629.19 629.53 18.60 629.87 630.21 630.55 630.88 631.22 631.56 631.90 632.24 632.58 632.92 18.70 633.25 633.59 633.93 634.27 634.61 634.95 635.29 635.63 635.96 636.30 18.80 636.64 636.98 637.32 637.66 638.00 638.33 638.67 639.01 639.35 639.69 18.90 640.03 640.37 640.70 641.04 641.38 641.72 642.06 642.40 642.74 643.08

19.00 643.41 643.75 644.09 644.43 644.77 645.11 645.45 645.78 646.12 646.46 19.10 646.80 647.14 647.48 647.82 648.15 648.49 648.83 649.17 649.51 649.85 19.20 650.19 650.53 650.86 651.20. 651.54 651.88 652.22 652.56 652.90 653.23 19.30 653.57 653.91 654.25 654.59 654.93 655.27 655.60 655.94 656.28 656.62 19.40 656.96 657.30 657.64 657.98 658.31 658.65 658.99 659.33 659.67 660.01

19.50 660.35 660.68 661.02 661.36 661.70 662.04 662.38 662.72 663.05 663.39 19.60 663.73 664.07 664.41 664.75 665.09 665.43 665.76 666.10 666.44 666.78 19.70 667.12 667.46 667.80 668.13 668.47 668.81 669.15 669.49 669.83 670.17 19.80 670.51 670.84 671.18 671.52 671.86 672.20 672.54 672.88 673.21 673.55 19.90 673.89 674.23 674.57 674.91 675.25 675.58 675.92 676.26 676.60 676.94

20.00 677.28 677.62 677.96 678.29 678.63 678.97 679.31 679.65 679.99 680.33 (continued)

in. Hg. .001 .002 .003 .004 .005 .006 .007 .008 .009

Bugporubnaliparts. (x. Gapls 0s*. (077. 10!" ae \agm 420) Rad eee) MO

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 9 (CONTINUED) 35 INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars. In. Hg. .00 01 02 03 04 .05 .06 .07 08 .09

mb. mb. mb. mb. mb. mb. mb. mb. mb. mb. 20.00 677.28 677.62 677.96 678.29 678.63 678.97 679.31 679.65 679.99 680.33 20.10 680.66 681.00 681.34 681.68 682.02 682.36 682.70 683.03 683.37 683.71 20.20 684.05 684.39 684.73 685.07 685.41 685.74 686.08 686.42 686.76 687.10 20.30 687.44 687.78 688.11 688.45 688.79 689.13 689.47 689.81 690.15 690.48 20.40 690.82 691.16 691.50 691.84 692.18 692.52 692.86 693.19 693.53 693.87

20.50 694.21 694.55 694.89 695.23 695.56 695.90 696.24 696.58 696.92 697.26 20.60 697.60 697.93 698.27 698.61 698.95 699.29 699.63 699.97 700.31 700.64 20.70 700.98 701.32 701.66 702.00 702.34 702.68 703.01 703.35 703.69 704.03 20.80 704.37 704.71 705.05 705.38 705.72 706.06 706.40 706.74 707.08 707.42 20.90 707.76 708.09 708.43 708.77 709.11 709.45 709.79 710.13 710.46 710.80

21.00 711.14 711.48 711.82 712.16 712.50 712.83 713.17 713.51 713.85 714.19 21.10 714.53 714.87 715.21 715.54 715.88 716.22 716.56 716.90 717.24 717.58 21.20 9717.91 718.25 718.59 718.93 719.27 719.61 719.95 720.28 720.62 720.96 21.30 721.30 721.64 721.98 722.32 722.66 722.99 723.33 723.67 724.01 724.35 21.40 724.69 725.03 725.36 725.70 726.04 726.38 726.72 727.06 727.40 727.73

21.50 728.07 728.41 728.75 729.09 729.43 729.77 730.11 730.44 730.78 731.12 21.60 731.46 731.80 732.14 732.48 732.81 733.15 733.49 733.83 734.17 734.51 21.70 = 734.85 735.19 735.52 735.86 736.20 736.54 736.88 737.22 737.56 737.89 21.80 738.23 738.57 738.91 739.25 739.59 739.93 740.26 740.60 740.94 741.28 21.90 741.62 741.96 742.30 742.64 742.97 743.31 743.65 743.99 744.33 744.67

22.00 745.01 745.34 745.68 746.02 746.36 746.70 747.04 747.38 747.71 748.05 22.10 748.39 748.73 749.07 749.41 749.75 750.09 750.42 750.76 751.10 751.44 22.20 751.78 752.12 752.46 752.79 753.13 753.47 753.81 754.15 754.49 754.83 22.30 755.16 755.50 755.84 756.18 756.52 756.86 757.20 757.54 757.87 758.21 22.40 758.55 758.89 759.23 759.57 759.91 760.24 760.58 760.92 761.26 761.60

22.50 761.94 762.28 762.61 762.95 763.29 763.63 763.97 764.31 764.65 764.99 22.60 765.32 765.66 766.00 766.34 766.68 767.02 767.36 767.69 768.03 768.37 22.70 768.71 769.05 769.39 769.73 770.06 770.40 770.74 771.08 771.42 771.76 22.80 772.10 772.44 772.77 773.11 773.45 773.79 774.13 774.47 774.81 775.14 22.90 775.48 775.82 776.16 776.50 776.84 77718 777.51 777.85 778.19 778.53

23.00 778.87 779.21 779.55 779.89 780.22 780.56 780.90 781.24 781.58 781.92 23.10 782.26 782.59 782.93 783.27 783.61 783.95 784.29 784.63 784.96 785.30 23.20 785.64 785.98 786.32 786.66 787.00 787.34 787.67 788.01 788.35 788.69 23.30 789.03 789.37 789.71 790.04 790.38 790.72 791.06 791.40 791.74 792.08 23.40 792.42 792.75 793.09 793.43 793.77 794.11 794.45 794.79 795.12 795.46

23.50 795.80 796.14 796.48 796.82 797.16 797.49 797.83 798.17 798.51 798.85 23.60 799.19 799.53 799.87 800.20 800.54 800.88 801.22 801.56 801.90 802.24 23.70 802.57 802.91 803.25 803.59 803.93 804.27 804.61 804.94 805.28 805.62 23.80 805.96 806.30 806.64 806.98 807.32 807.65 807.99 808.33 808.67 809.01 23.90 809.35 809.69 810.02 810.36 810.70 811.04 811.38 811.72 812.06 812.39

24.00 812.73 813.07 813.41 813.75 814.09 81443 814.77 815.10 815.44 815.78 24.10 816.12 816.46 816.80 817.14 817.47 817.81 818.15 818.49 818.83 819.17 24.20 819.51 819.84 820.18 820.52 820.86 821.20 821.54 821.88 822.22 822.55 24.30 822.89 823.23 823.57 823.91 824.25 824.59 824.92 825.26 825.60 825.94 24.40 826.28 826.62 826.96 827.29 827.63 827.97 828.31 828.65 828.99 829.33

24.50 829.67 830.00 830.34 830.68 831.02 831.36 831.70 832.04 832.37 832.71 24.60 833.05 833.39 833.73 834.07 83441 834.74 835.08 835.42 835.76 836.10 24.70 836.44 836.78 837.12 837.45 837.79 838.13 838.47 838.81 839.15 839.49 24.80 839.82 840.16 840.50 840.84 841.18 841.52 841.86 842.19 842.53 842.87 24.90 843.21 843.55 843.89 844.23 844.57 844.90 845.24 845.58 845.92 846.26

25.00 846.60 846.94 847.27 847.61 847.95 848.29 848.63 848.97 849.31 849.65

(continued)

in. Hg. .001 .002 .003 .004 .005 .006 .007 .008 .009 Proportional parts ab 103. 007 40. te ay 20 aaa a,

SMITHSONIAN METEOROLOGICAL TABLES

36 TABLE 9 (CONTINUED) INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars. In. Hg. .00 01 02 03 04 05 .06 .07 .08 09

mb. mb. mb. mb. mb. mb. mb. mb. mb. mb. 25.00 846.60 846.94 847.27 847.61 847.95 848.29 848.63 848.97 849.31 849.65 25.10 849.98 850.32 850.66 851.00 851.34 851.68 852.02 852.35 852.69 853.03 25.20 853.37 853.71 854.05 854.39 854.72 855.06 855.40 855.74 856.08 856.42 25.30 856.76 857.10 857.43 857.77 858.11 858.45 858.79 859.13 859.47 859.80 25.40 860.14 860.48 860.82 861.16 861.50 861.84 862.17 862.51 862.85 863.19

25.50 863.53 863.87 864.21 864.55 864.88 865.22 865.56 865.90 866.24 866.58 25.60 866.92 867.25 867.59 867.93 868.27 868.61 868.95 869.29 869.62 869.96 25.70 870.30 870.64 870.98 871.32 871.66 872.00 872.33 872.67 873.01 873.35 25.80 873.69 874.03 874.37 874.70 875.04 875.38 875.72 876.06 876.40 876.74 25.90 877.07 877.41 877.75 878.09 878.43 878.77 879.11 879.45 879.78 880.12

26.00 880.46 880.80 881.14 881.48 881.82 882.15 882.49 882.83 883.17 883.51 26.10 883.85 884.19 884.52 884.86 885.20 885.54 885.88 886.22 886.56 886.90 26.20 887.23 887.57 887.91 888.25 888.59 888.93 889.27 889.60 889.94 890.28 26.30 890.62 890.96 891.30 891.64 891.97 892.31 892.65 892.99 893.33 893.67 26.40 894.01 894.35 894.68 895.02 895.36 895.70 896.04 896.38 896.72 897.05

26.50 897.39 897.73 898.07 898.41 898.75 899.09 899.42 899.76 900.10 900.44 26.60 900.78 901.12 901.46 901.80 90213 902.47 902.81 903.15 903.49 903.83 26.70 904.17 904.50 904.84 905.18 905.52 905.86 906.20 906.54 906.87 907.21 26.80 907.55 907.89 908.23 908.57 908.91 909.25 909.58 909.92 910.26 910.60 26.90 910.94 911.28 911.62 911.95 912.29 912.63 912.97 913.31 913.65 913.99

27.00 914.33 914.66 915.00 915.34 915.68 916.02 916.36 916.70 917.03 917.37 27.10 917.71 918.05 918.39 918.73 919.07 919.40 919.74 920.08 920.42 920.76 27.20 921.10 921.44 921.78 922.11 922.45 922.79 923.13 923.47 923.81 924.15 27.30 924.48 924.82 925.16 925.50 925.84 926.18 926.52 926.85 927.19 927.53 27.40 927.87 928.21 928.55 928.89 929.23 929.56 929.90 930.24 930.58 930.92

27.50 931.26 931.60 931.93 932.27 932.61 932.95 933.29 933.63 933.97 934.30 27.60 934.64 934.98 935.32 935.66 936.00 936.34 936.68 937.01 937.35 937.69 27.70 938.03 938.37 938.71 939.05 939.38 939.72 940.06 940.40 940.74 941.08 27.80 941.42 941.75 942.09 942.43 942.77 943.11 943.45 943.79 944.13 944.46 27.90 944.80 945.14 945.48 945.82 946.16 946.50 946.83 947.17 947.51 947.85

28.00 948.19 948.53 948.87 949.20 949.54 949.88 950.22 950.56 950.90 951.24 28:10) 98959:58 \/950-91.952.25 952.59 952°93 953:27 953.61" 953.95 954-28) 954162 28.20 954.96 955.30 955.64 955.98 956.32 956.65 956.99 957.33 957.67 958.01 28.30 958.35 958.69 959.03 959.36 959.70 960.04 960.38 960.72 961.06 961.40 28.40 961.73 962.07 962.41 962.75 963.09 963.43 963.77 964.10 964.44 964.78

28.50 965.12 965.46 965.80 966.14 966.48 966.81 967.15 967.49 967.83 968.17 28.60 968.51 968.85 969.18 969.52 969.86 970.20 970.54 970.88 971.22 971.56 28.70 971.89 972.23 972.57 972.91 973.25 973.59 973.93 974.26 974.60 974.94 28.80 975.28 975.62 975.96 976.30 976.63 976.97 977.31 977.65 977.99 978.33 28.90 978.67 979.01 979.34 979.68 980.02 980.36 980.70 981.04 981.38 981.71

29.00 982.05 982.39 982.73 983.07 983.41 983.75 984.08 984.42 984.76 985.10 29.10 985.44 985.78 986.12 986.46 986.79 987.13 987.47 987.81 988.15 988.49 29.20 988.83 989.16 989.50 989.84 990.18 990.52 990.86 991.20 991.53 991.87 29.30 992.21 992.55 992.89 993.23 993.57 993.91 994.24 994.58 994.92 995.26 29.40 995.60 995.94 996.28 996.61 996.95 997.29 997.63 997.97 998.31 998.65

29.50 998.98 999.32 999.66 1000.00 1000.34 1000.68 1001.02 1001.36 1001.69 1002.03 29.60 1002.37 1002.71 1003.05 1003.39 1003.73 1004.06 1004.40 1004.74 1005.08 1005.42 29.70 1005.76 1006.10 1006.43 1006.77 1007.11 1007.45 1007.79 1008.13 1008.47 1008.81 29.80 1009.14 1009.48 1009.82 1010.16 1010.50 1010.84 1011.18 1011.51 1011.85 1012.19 29.90 1012.53 1012.87 1013.21 1013.55 1013.88 1014.22 1014.56 1014.90 1015.24 1015.58

30.00 1015.92 1016.26 1016.59 1016.93 1017.27 1017.61 1017.95 1018.29 1018.63 1018.96 (continued)

in. He. .001 .002 .003 .004 .005 .006 .007 .008 .009 Proportional parts mb. 103° 407 0 0 aM 7 ag tae ote

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 9 (CONCLUDED) 37 INCHES OF MERCURY TO MILLIBARS 1 inch of mercury = 33.86389 millibars. In. Hg. .00 01 02 .03 .04 .05 .06 07 08 .09

mb. mb. mb. mb. mb. mb. mb. mb. mb. mb. 30.00 1015.92 1016.26 1016.59 1016.93 1017.27 1017.61 1017.95 1018.29 1018.63 1018.96 30.10 1019.30 1019.64 1019.98 1020.32 1020.66 1021.00 1021.33 1021.67 1022.01 1022.35 30.20 1022.69 1023.03 1023.37 1023.71 1024.04 1024.38 1024.72 1025.06 1025.40 1025.74 30.30 1026.08 1026.41 1026.75 1027.09 1027.43 1027.77 1028.11 1028.45 1028.78 1029.12 30.40 1029.46 1029.80 1030.14 1030.48 1030.82 1031.16 1031.49 1031.83 1032.17 1032.51

30.50 1032.85 1033.19 1033.53 1033.86 1034.20 1034.54 1034.88 1035.22 1035.56 1035.90 30.60 1036.24 1036.57: 1036.91 1037.25 1037.59 1037.93 1038.27 1038.61 1038.94 1039.28 30.70 1039.62 1039.96 1040.30 1040.64 1040.98 1041.31 1041.65 1041.99 1042.33 1042.67 30.80 1043.01 1043.35 1043.69 1044.02 1044.36 1044.70 1045.04 1045.38 1045.72 1046.06 30.90 1046.39 1046.73 1047.07 1047.41 1047.75 1048.09 1048.43 1048.76 1049.10 1049.44

31.00 1049.78 1050.12 1050.46 1050.80 1051.14 1051.47 1051.81 1052.15 1052.49 1052.83 31.10 1053.17 1053.51 1053.84 1054.18 1054.52 1054.86 1055.20 1055.54 1055.88 1056.21 31.20 1056.55 1056.89 1057.23 1057.57 1057.91 1058.25 1058.59 1058.92 1059.26 1059.60 31.30 1059.94 1060.28 1060.62 1060.96 1061.29 1061.63 1061.97 1062.31 1062.65 1062.99 31.40 1063.33 1063.66 1064.00 1064.34 1064.68 1065.02 1065.36 1065.70. 1066.04 1066.37

31.50 1066.71 1067.05 1067.39 1067.73 1068.07 1068.41 1068.74 1069.08 1069.42 1069.76 31.60 1070.10 1070.44 1070.78 1071.11 1071.45 1071.79 1072.13 1072.47 1072.81 1073.15 31.70 1073.49 1073.82 1074.16 1074.50 1074.84 1075.18 1075.52 1075.86 1076.19 1076.53 31.80 1076.87 1077.21 1077.55 1077.89 1078.23 1078.56 1078.90 1079.24 1079.58 1079.92 31.90 1080.26 1080.60 1080.94 1081.27 1081.61 1081.95 1082.29 1082.63 1082.97 1083.31

4 in. Hg. .001 .002 .003 .004 .005 .006 .007 .008 .009 Proportional parts mbsde0S O70 OL ams SIRs 20h end ) Neze (30

SMITHSONIAN METEOROLOGICAL TABLES

38

eas 0 In. Hg. 0 0.000 10 295 20 591 30 886 40 1.181 50 1.476 60 WeAZZ 70 2.067 80 2.362 90 2.658 100 2.953 110 3.248 120 3.544 130 3.839 140 4.134 150 4.429 160 4.725 170 5.020 180 5.315 190 5.611 200 5.906 210 6.201 220 6.497 230 6.792 240 7.087 250 7.382 260 7.678 270 7.973 280 8.268 290 8.564 300 8.859 310 9.154 320 9.450 330 9.745 340 10.040 350 10.335 360 10.631 370 10.926 380 11.221 390 11.517 400 11.812 410 12.107 420 12.403 430 12.698 440 12.993 450 13.288 460 13.584 470 13.879 480 14.174 490 14.470 500 14.765

TABLE 10

MILLIBARS TO INCHES OF MERCURY

1 In. Hg. 0.030 325

Proportional parts

1 millibar = 0.02952998 inch of mercury.

2 3 4 5 6 7 In. Hg. In. Hg. In. Hg. Inwiies) Envelos inwbie:

0.059 0.089 0.118 0.148 0.177 0.207 04 ty 2984 +413 443 “A72 + 502 1650) > £679. 7.709 .738 268 1 03797

945 974 = 1.004 1.034 1.063 1.093 1240) 1-270: 1299 1329) 1.3580 1388

1.536") 0:565' 1.595 1.624 1.654 1.683 PSs), 1-860. 1.890 E919 - 1.949) 5 1.979 ZAZH e2lop 2.183 2.215 2.244 2.274 2.421 2.451 2.481 2.510 2.540 2.569 ZAP 2746 2.176 2.805 2.835 2.864

3.012 3.042 3.071 3101, , 3:130 ,..3:160 S307). o-co7, 3.000 3.396 3.425 3.455 3:603 3.632 3.662 S091) psec line S450 SSo0) Goes) 3-907, 3.987 4.016 4.046 4.193 4.223 4.252 4.282 4311 4.341

4.489 4.518 4.548 4.577 4.607 4.636

14.824 14.854 14.883 14.913 14.942 14.972 (continued)

mb. .1 Zi Sk cae SOI GORY 7, in. Hg. .003 .006 .009 012 .015 .018 .021

SMITHSONIAN METEOROLOGICAL TABLES

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY

bars 0 ail In. Hg. In. Hg 500 14.765 14.768 501 14.795 14.797 502 14.824 14.827 503 14.854 14.857 504 14.883 14.886 505 14.913 14.916 506 14.942 14.945 507 14.972 14.975 508 15.001 15.004 509 15.031 15.034 510 15.060 15.063 511 15.090 15.093 512 15.119 15.122 513. 15.149 15.152 514 15.178 15.181 515 15.208 15.211 516 15.237 15.240 517 15.267 15.270 518 15.297 15.299 519 15.326 15.329 520 15.356 15.359 521 15.385 15.388 522 15.415 15.418 523 15.444 15.447 524 15.474 15.477 B25 15.503 15.506 526 15.533 15.536 527 15.562 15.565 528 15.592 15.595 529 15.621 15.624 530 15.651 15.654 531 15.680 15.683 532 15.710 15.713 533 15.739 15.742 534 15.769 15.772 535 15.799 15.801 536 15.828 15.831 537 15.858 15.861 538 15.887 15.890 539 15.917 15.920 540 15.946 15.949 541 15.976 15.979 542 16.005 16.008 543 16.035 16.038 544 16.064 16.067 545 16.094 16.097 546 16.123 16.126 547 16.153 16.156 548 16.182 16.185 549 16.212 16.215 550 16.241 16.244

Proportional parts

1 millibar = 0.02952998 inch of mercury.

2 oO 4 25 6 u/, ain Hot invite in. re: In. Hg. In. Hg. In. Hg. 14.771 14.774 14.777 14.780 14.783 14.786 14.800 14.803 14.806 14.809 14.812 14.815 14.830 14.833 14.836 14.839 14842 14.845 14.859 14.862 14.865 14.868 14.871 14.874 14.889 14.892 14.895 14.898 14.901 14.904 14.919 14.921 14.924 14.927 14.930 14.933 14.948 14.951 14.954 14.957 14.960 14.963 14.978 14.981 14.984 14.986 14.989 14.992 15.007 15.010 15.013 15.016 15.019 15.022 15.037 15.040 15.043 15.046 15.048 15.051 15.066 15.069 15.072 15.075 15.078 15.081 15.096 15.099 15.102 15.105 15.108 15.110 15-1257) 15.1287) 15.138 15.134 15.137 15.140 15.155 15.158 15.161 15.164 15.167 15.170 15.184 15.187 15.190 15.193 15.196 15.199 15:214e* W5:2070" 15.220 15.223 15.226 15.229 15.243 15.246 15.249 W552) © 153255'* 15-258 15.273 15.276 15.279 15.282 15.285 15.288 15.302 15.305 15.308 DSSS T5314 15: S17 15.302) 159335 > 15.338 15.341 15.344 15.347 15.361 15.364 15.367 155370) 15373 - 15:376 15.391 15.394 15.397 15.400 15.403 15.406 15.421 15.424 15.426 15.429 15.432 15.435 15.450 15.453 15.456 15.459 15.462 15.465 15.480 15.483 15.486 15.488 15.491 15.494 15509 7+ 1525124 15.515 1S ei stoete» 124 15.539 15.542 15.545 15.548 15.550 15.553 155568 15:571')' 15.574 15.577." 152580)" 15:58 15.598 15.601 15.604 15.607 15.610 15.613 15.627 15.630 15.633 15.636 15.639 15.642 15.657 15.660 15.663 15.666 15.669 15.672 15.686 15.689 15.692 15.695 15.698 15.701 15E7AGe 15271 ON) 153722 1572505 1597280) 152730 15.745 15.748 15.751 T5754). 15:757. 15:760 15.775 15:778°' 15.781 15.784 15.787 15.790 15.804 15.807 15.810 15.813 15.816 15.819 15.834 15.837 15.840 15.843 15.846 15.849 15.864 15.866 15.869 15.872 15.875 15.878 15.893 15.896 15.899 15.902 15.905 15.908 15.923 15.926 15.928 15.931 15.934 15.937 15.952 15.955 15.958 15.961 15.964 15.967 15.982 15.985 15.988 15.990 15.993 15.996 16.011 16.014 16.017 16.020 16.023 16.026 16.041 16.044 16.047 16.050 16.052 16.055 16.070 16.073 16.076 16.079 16.082 16.085 16.100 16.103 16.106 16.109 16.112 16.115 16.129 16.132 16.135 16.138 16.141 16.144 16.159 16.162 16.165 16.168 16.171 16.174 16.188 16.191 16.194 16.197 16.200 16.203 16.218 16.221 16.224 16.227 16.230 16.233 16.247 16.250 16.253 16.256 16.259 16.262 (continued)

mb! 01 2502).7003;0, 0445-05. 06% Ovi in. Hg. .000 .001 .001 .001 .001 .002 .002

SMITHSONIAN METEOROLOGICAL TABLES

39

08 .09 002 .003

40

Milli

bars 0

In. Hg.

550 16.241 551 16.271 552 16.301 553 16.330 554 16.360 555 16.389 556 16.419 557 16.448 558 16.478 559 16.507 560 16.537 561 16.566 562 16.596 563 16.625 564 16.655 565 16.684 566 16.714 567 16.743 568 16.773 569 16.803 570 16.832 571 16.862 572 16.891 573 16.921 574 16.950 575 16.980 576 17.009 577 17.039 578 17.068 579 17.098 580 17.127 581 if asy/ 582 17.186 583 17.216 584 17.246 585 17.275 586 17.305 587 17.334 588 17.364 589 17.393 590 17.423 591 17.452 592 17.482 593 eS 504 17.541 595 17.570 596 17.600 597 17.629 598 17.659 599 17.688 600 17.718

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

all In. Hg. 16.244 16.274 16.304 16.333 16.363

16.392 16.422 16.451 16.481 16.510

16.540 16.569 16.599 16.628 16.658

16.687 16.717 16.746 16.776 16.806

16.835 16.865 16.894 16.924 16.953

16.983 17.012 17.042 17.071 17.101

17.130 17.160 17.189 17.219 17.248

17.278 17.308 17.337 17.367 17.396

17.426 17.455 17.485 17.514 17.544

17.573 17.603 17.632 17.662 17.691

17.721

Proportional parts

2 In. Hg. 16.247 16.277 16.306 16.336 16.366

16.395 16.425 16.454 16.484 16.513

16.543 16.572 16.602 16.631 16.661

16.690 16.720 16.749 16.779 16.808

16.838 16.868 16.897 16.927 16.956

16.986 17.015 17.045 17.074 17.104

17.133 17.163 17.192 17222 17.251

17.281 17.310 17.340 17.370 17.399

17.429

‘3 In. Hg. 16.250 16.280 16.309 16.339 16.368

16.398 16.428 16.457 16.487 16.516

16.546 16.575 16.605 16.634 16.664

16.693 16.723

mb. .01 in. Hg. .000

SMITHSONIAN METEOROLOGICAL TABLES

4 In. Hg. 16.253 16.283 16.312 16.342 16.371

16.401 16.430 16.460 16.490 16.519

16.549 16.578 16.608 16.637 16.667

16.696

16.726 16.755

17.730

(continued)

02/0 4.05 001 .001

aS In. Hg. 16.256 16.286 16.315 16.345 16.374

16.404 16.433 16.463 16.492 16.522

16.552 16.581 16.611 16.640 16.670

16.699 16.729 16.758 16.788 16.817

16.847 16.876 16.906 16.935 16.965

16.995 17.024 17.054 17.083 17.113

17.142 17172 17.201 een 17.260

17.290 17.319 17.349 17.378 17.408

17.437 17.467 17.497 17.526 17.556

17.585 17.615 17.644 17.674 17.703

17.733

04 001

6 In. Hg. 16.259 16.289 16.318 16.348 16.377

16.407 16.436 16.466 16.495 16.525

16.555 16.584 16.614 16.643 16.673

16.702 16.732 16.761 16.791 16.820

16.850 16.879 16.909 16.938 16.968

16.997 17.027 17.057 17.086 17.116

17.145 17.175 17.204 17.234 17.263

17.293 17.322 17.352 17.381 17.411

17.440 17.470 17.499 17.529 17.559

17.588 17.618 17.647 17.677 17.706

17.736

05% ),,06 001 .002 .002

7

In. Hg.

16.262 16.292 16.321 16.351 16.380

16.410 16.439 16.469 16.498 16.528

16.557 16.587 16.617 16.646 16.676

16.705 16.735 16.764 16.794 16.823

16.853 16.882 16.912 16.941 16.971

17.000 17.030 17.059 17.089 17.119

17.148 17.178 17.207 17.237 17.266

17.296 17.325 17.355 17.384 17.414

17.443 17.473 17.502 173532 17.561

17.591 17.621 17.650 17.680 17.709

17.739

07

8

In. Hg.

16.265 16.295 16.324 16.354 16.383

16.413 16.442 16.472 16.501 16.531

16.560 16.590 16.619 16.649 16.679

16.708 16.738 16.767 16.797 16.826

16.856 16.885 16.915 16.944 16.974

17.003 17.033 17.062 17.092 17.121

17.151 17.181 17.210 17.240 17.269

17.299 17.328 17.358 17.387 17.417

17.446 17.476 17.505 17.535 17.564

17.594 17.623 17.653 17.683 17.712

17.742

.08

9 In. Hg. 16.268 16.298 16.327 16.357 16.386

16.416 16.445 16.475 16.504 16.534

16.563 16.593 16.622 16.652 16.681

16.711 16.741 16.770 16.800 16.829

16.859 16.888 16.918 16.947 16.977

17.006 17.036 17.065 17.095 17.124

17.154 17.183 17.213 17.243 17.272

17.302 17.331 17.361 17.390 17.420

17.449 17.479 17.508 17.538 17.567

17.597 17.626 17.656 17.686 17.715

17.745

.09

002 .003

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

In. Hg. In. Hg. 600 17.718 17.721 601 17.748 17.750 602 17.777 17.780 603 17.807 17.810 604 17.836 17.839

605 17.866 17.869 606 17.895 17.898 GOZ, 1 17:925: 17.928 608 17.954 17.957 609 17.984 17.987

610 18.013 18.016 611 18.043 18.046 612 18.072 18.075 613 18.102 18.105 614 =: 18.131 18.134

615 18.161 18.164 616 18.190 18.193 617%. 18.220 18.223 618 18250 18.252 619 18.279 18.282

620 18.309 18.312 621 18.338 18.341 622 18.368 18.371 623. 18.397 18.400 624 18.427 18.430

625 18456 18.459 626 18.486 18.489 627. = 18.515 18.518 628 18.545 18.548 629 18.574 18.577

630 18.604 18.607 631 18.633 18.636 632 18.663 18.666 633 18.692 18.695 634 18.722 18.725

635 18.752 18.754 636 18.781 18.784 637 18.811 18.814 638 18.840 18.843 639 18.870 18.873

640 18.899 18.902 641 18.929 18.932 642 18.958 18.961 643 = 18.988 18.991 644 19.017 19.020

645 19.047 19.050 646 19.076 19.079 647 19.106 19.109 648 19.135 19.138 649 19.165 19.168

650 19.194 19.197

Proportional parts

2 In. Hg. 17.724 17.753 17.783 17.812 17.842

17.872 17.901 17.931 17.960 17.990

18.019 18.049 18.078 18.108 18.137

18.167 18.196

5S) In. Hg. 17.727 17.756 17.786 17.815 17.845

17.874 17.904 17.934 17.963 17.993

18.022 18.052 18.081 18.111 18.140

18.170 18.199 18.229 18.258 18.288

18.317 18.347 18.377 18.406 18.436

18.465 18.495 18.524 18.554 18.583

18.613 18.642 18.672 18.701 18.731

18.760 18.790 18.819 18.849 18.879

18.908 18.938 18.967 18.997 19.026

19.056 19.085 19.115 19.144 19.174

19.203

mb. .01 in. Hg. .000

SMITHSONIAN METEOROLOGICAL TABLES

at In. Hg. 17.730 17.759 17.789 17.818 17.848

17.877 17.907 17.937 17.966 17.996

18.025 18.055 18.084 18.114 18.143

18.173 18.202 18.232 18.261 18.291

18.320 18.350 18.379 18.409 18.439

18.468

19.206

(continued)

02 .03 001 .001

nS In. Hg. 17.733 17.762 17.792 17.821 17.851

17.880 17.910 17.939 17.969 17.999

18.028 18.058 18.087 18.117 18.146

18.176 18.205 18.235 18.264 18.294

18.323 18.353 18.382 18.412 18.441

18.471 18.501 18.530 18.560 18.589

18.619 18.648 18.678 18.707 18.737

18.766 18.796 18.825 18.855 18.884

18.914 18.943 18.973 19.003 19.032

19.062 19.091 19.121 19.150 19.180

19.209

04 .001

6 In. Hg. 17.736 17.765 17.795 17.824 17.854

17.883 17.913

05%. 06 .001

|

In. Hg.

17.739 17.768 17.798 17.827 17.857

17.886 17.916 17.945 17.975 18.004

18.034 18.063 18.093 18.123 18.152

18.182 18.211 18.241 18.270 18.300

18.329 18.359 18.388 18.418 18.447

18.477 18.506 18.536 18.565 18.595

18.625 18.654 18.684 18.713 18.743

18.772 18.802 18.831 18.861 18.890

18.920 18.949 18.979 19.008 19.038

19.068 19.097 19.127 19.156 19.186

19.215

07

002 .002

8

In. Hg.

17.742 17.771 17.801 17.830 17.860

17.889 17.919 17.948 17.978 18.007

18.037 18.066 18.096 18.126 18.155

18.185 18.214 18.244 18.273 18.303

18.332 18.362 18.391 18.421 18.450

18.480 18.509 18.539 18.568 18.598

18.628 18.657 18.687 18.716 18.746

18.775 18.805 18.834 18.864 18.893

18.923 18.952 18.982 19.011 19.041

19.070 19.100 19.130 19,159 19.189

19.218

41

9 In. Hg. 17.745 17.774 17.804 17.833 17.863

17.892 17.922 17.951 17.981 18.010

18.040 18.069 18.099 18.128 18.158

18.188 18.217 18.247 18.276 18.306

18.335 18.365 18.394 18.424 18.453

18.483 18.512 18.542 18.571 18.601

18.630 18.660 18.690 18.719 18.749

18.778 18.808 18.837 18.867 18.896

18.926 18.955 18.985 19.014 19.044

19.073 19.103 19.132 19.162 19.192

19.221

08 .09 002 .003

42

In. Hg. 19.194 19.224

19.313

19.342 19.372 19.401 19.431 19.460

19.490 19.519 19.549 19.578 19.608

19.637 19.667 19.696 19.726 19.756

19.785 19.815 19.844 19.874 19.903

19.933 19.962 19.992 20.021 20.051

20.080 20.110 20.139 20.169 20.199

20.228 20.258 20.287 20.317 20.346

20.376 20.405 20.435 20.464 20.494

20.523 20.553 20.582 20.612 20.641

20.671

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

In. Hg. 19.197

19.316

19.345 19.375 19.404 19.434 19.463

19.493 19.522 19.552 19.581 19.611

19.640 19.670 19.699 19.729 19.759

19.788 19.818 19.847 19.877 19.906

19.936 19.965 19.995 20.024 20.054

20.083 20.113 20.142 20.172 20.201

20.231 20.261 20.290 20.320 20.349

20.379 20.408 20.438 20.467 20.497

20.526 20.556 20.585 20.615 20.644

20.674

Proportional parts

ea, In. Hg. 19.200 19.230 19.259 19.289 19.319

19.348 19.378 19.407 19.437 19.466

19.496 19.525 19.555 19.584 19.614

19.643 19.673 19.702 19.732 19.761

19.791 19.821 19.850 19.880 19.909

19.939 19.968 19.998 20.027 20.057

20.086 20.116 20.145 20.175 20.204

20.234 20.263 20.293 20.323 20.352

20.382 20.411 20.441 20.470 20.500

20.529 20.559 20.588 20.618 20.647

20.677

58) In. Hg. 19.203 19.233 19.262 19.292 19.321

19.351 19.381 19.410 19.440 19.469

19.499 19.528 19.558 19.587 19.617

19.646 19.676 19.705 19.735 19.764

19.794 19.823 19.853 19.883 19.912

19.942 19.971 20.001 20.030 20.060

20.089 20.119 20.148 20.178 20.207

20.237 20.266 20.296 20.325 20.355

20.385 20.414 20.444 20.473 20.503

20.532 20.562 20.591 20.621 20.650

20.680

mb. .01 in. Hg. .000

SMITHSONIAN METEOROLOGICAL TABLES

4 In. Hg. 19.206

20.683

(contimted)

02. .03 001 .001

S In. Hg. 19.209 419.239 19.268 19.298 19.327

19.357 19.386 19.416 19.445 19.475

19.505 19.534 19.564 19.593 19.623

19.652

04 001

6 In. Hg. 19.212 19.242 19.271

05.06

W/

In. Hg.

19.215 19.245 19.274 19.304 19.333

19.363 19.392 19.422 19.451 19.481

19.510 19.540 19.570 19.599 19.629

19.658 19.688 19.717 19.747 19.776

19.806 19.835 19.865 19.894 19.924

19.953 19.983 20.012 20.042 20.072

20.101 20.131 20.160 20.190 20.219

20.249 20.278 20.308 20.337 20.367

20.396 20.426 20.455 20.485 20.514

20.544 20.574 20.603 20.633 20.662

20.692

07

001 .002 .002

8

In. Hg.

19.218 19.248 19.277 19.307 19.336

19.366 19.395 19.425 19.454 19.484

19.513 19.543 19.572 19.602 19.632

19.661 19.691 19.720 19.750 19.779

19.809 19.838 19.868 19.897 19.927

19.956 19.986 20.015 20.045 20.074

20.104 20.134 20.163 20.193 20.222

20.252 20.281 20.311 20.340 20.370

20.399 20.429 20.458 20.488 20.517

20.547 20.576 20.606 20.636 20.665

20.695

29 In. Hg. 19.221 19.251 19.280 19.310 19.339

19.369 19.398 19.428 19.457 19.487

19.516 19.546 19.575 19.605 19.634

19.664 19.694 19.723 19.753 19.782

19.812 19.841 19.871 19.900 19.930

19.959 19.989 20.018 20.048 20.077

20.107 20.136 20.166 20.196 20.225

20.255 20.284 20.314 20.343 20.373

20.402 20.432 20.461 20.491 20.520

20.550 20.579 20.609 20.639 20.668

20.698

08 .09 002 .003

bars 0 In. Hg. 700 20.671 701 20.701 702 20.730 703 20.760 704 =. 20.789 705 20.819 706 20.848 707 20.878 708 20.907 709 20.937 710 20.966 711 20.996 712 21.025 713 21.055 714 21.084 715 21.114 716 21.143 717 PANE: 718 21.203 719 21232 720 21.262 721 21.291 722 21.321 723 21.350 724 21.380 725 21.409 726 21.439 727 21.468 728 21.498 729 21.527 730 21.557 731 21.586 732 21.616 733 21.645 734 21.675 735 21.705 736 21.734 737 21.764 738 21.793 739 21.823 740 21.852 741 21.882 742 21.911 743 21.941 744 ~=—21.970 745 22.000 746 22.029 747 =. 22.059 748 22.088 749 22.118 750: 22,147

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

all In. Hg. 20.674 20.703 20.733 20.763 20.792

20.822 20.851 20.881 20.910 20.940

20.969 20.999 21.028 21.058 21.087

21.117 21.146 21.176 21.205 21235

21.265 21.294 21.324 21.353 21.383

21.412 21.442 21.471 21.501 21.530

21.560 21.589 21.619 21.648 21.678

21.707 21.737 21.767 21.796 21.826

21.855 21.885 21.914 21.944 21.973

22.003 22.032 22.062 22.091 22.421

22.150

Proportional parts

LA In. Hg. 20.677 20.706 20.736 20.765 20.795

20.825 20.854 20.884 20.913 20.943

20.972 21.002 21.031 21.061 21.090

21.120 21.149 21.179 21.208 21.238

21.267 2297 2 327 21.356 21.386

21.415 21.445 21.474 21.504 21.533

21.563 21.592 21.622 21.651 21.681

21.710 21.740 21.770 21.799 21.829

21.858 21.888 21.917 21.947 21.976

22.006 22.035 22.065 22.094 22.124

22.153

3} In. Hg. 20.680 20.709 20.739 20.768 20.798

20.827 20.857 20.887 20.916 20.946

20.975 21.005 21.034 21.064 21.093

21.123 Zu OZ 21.182 rAWA LI 21.241

21.270 21.300 21.330 21.359 21.389

21.418 21.448 21.477 21.507 21.536

21.566 21.595 21.625 21.654 21.684

21.713 21.743 21.772 21.802 21.832

21.861 21.891 21.920 21.950 21.979

22.009 22.038 22.068 22.097 22.127

22.156

mb. .01

in. Hg.

.000

SMITHSONIAN METEOROLOGICAL TABLES

A In. Hg. 20.683

22.159

(continued)

02 .03 001 .001

5 In. Hg. 20.686 20.715 20.745 20.774 20.804

20.833 20.863 20.892 20.922 20.952

20.981 21.011 21.040 21.070 21.099

21.129 21.158 21.188 21.217 21.247

21.276 21.306 21.335 21.365 21.394

21.424 21.454 21.483 21.513 21.542

21-572 21.601 21.631 21.660 21.690

21.719 21.749 21.778 21.808 21.837

21.867 21.896 21.926 21.956 21.985

22.015 22.044 22.074 22.103 22.133

22.162

04 001

6 In. Hg. 20.689 20.718 20.748 20.777 20.807

20.836 20.866 20.895 20.925 20.954

20.984 21.014 21.043 21.073 21.102

21.132 21.161 21.191 21.220 21.250

21.279 21.309 21.338 21.368 21.397

21.427 21.456 21.486 21.516 21.545

21575 21.604 21.634 21.663 21.693

21.722 21.752 21.781 21.811 21.840

21.870 21.899 21.929 21.958 21.988

22.018 22.047 22.077 22.106 22.136

22.165

05) 06 001 .002 .002

yi

In. Hg.

20.692 20.721 20.751 20.780 20.810

20.839 20.869 20.898 20.928 20.957

20.987 21.016 21.046 21.076 21.105

21.135 21.164 21.194 24225 21.253

21.282 21.312 21.341 21.371 21.400

21.430 21.459 21.489 21.518 21.548

21.578 21.607 21.637 21.666 21.696

21.725 21.755 21.784 21.814 21.843

21.873 21.902 21.932 21.961 21.991

22.021 22.050 22.080 22.109 22.139

22.168

07

8

In. Hg.

20.695 20.724 20.754 20.783 20.813

20.842 20.872 20.901 20.931 20.960

20.990 21.019 21.049 21.078 21.108

21.138 21.167 21.197 21.226 21.256

21.285 21.315 21.344 21.374 21.403

21.433 21.462 21.492 21.521 21.551

21.581 21.610 21.640 21.669 21.699

21.728 21.758 21.787 21.817 21.846

21.876 21.905 21.935 21.964 21.994

22.023 22.053 22.083 22.092 22.142

22.171

.08

43

9 In. Hg. 20.698 20.727 20.757 20.786 20.816

20.845 20.875 20.904 20.934 20.963

20.993 21.022 21.052 21.081 PAB EE

21.141 21.170 21.200 21.229 21.259

21.288 21.318 21.347 21.377 21.406

21.436 21.465 21.495 21.524 21.554

21.583 21.613 21.643 21.672 21.702

21.731 21.761 21.790 21.820 21.849

21.879 21.908 21.938 21.967 21.997

22.026 22.056 22.085 22.115 22.145

22.174

.09

002 .003

44

In. Hg. 22.147 22MAL 22.207 22.236 22.266

22.295 22.325 22.354 22.384 22.413

22.443 22.472 22.502 22.531 22.561

22.590 22.620 22.649 22.679 22.709

22.738 22.768 22.497 22.827 22.856

22.886 22.915 22.945 22.974 23.004

23.033 23.063 23.092 23.122 23.152

23.181 Zo201 23.240 23.270 © 23.299

23.329 23.358 23.388 23.417 23.447

23.476 23.506 23.535 23.565 23.594

23.624

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

Proportional parts

eZ In. Hg. 22153

3 In. Hg. 22.156 22.186 22.215 22.245 22.274

22.304 22.334 22.363 22.393 22.422

22.452 22.481 2Zo11 22.540 22.570

22.599 22.629 22.658 22.688 22.717

22.747 22.776 22.806 22.836 22.865

22.895 22.924 22.954 22.983 23.013

23.042 23.072 23.101 23.131 23.160

23.190 23.219 23.249 23.278 23.308

23.338 23.367 23.397 23.426 23.456

23.485 23.515 23.544 23.574 23.603

23.633

mb. .01 in. Hg. .000

SMITHSONIAN METEOROLOGICAL TABLES

4 In. Hg. 22.159 22.189

23.636

(continued)

02 03 001 .001

4) In. Hg. 22.162 22.192 22.221 22.251 22.280

22.310 22.339 22.369 22.398 22.428

22.458 22.487 22.517 22.546 22.576

22.605 22.635 22.664 22.694 22.723

22.753 22.782 22.812 22.841 22.871

22.900 22.930 22.960 22.989 23.019

23.048 23.078 23.107 23.137 23.166

23.196 23.225 23.255 23.284 23.314

23.343 23.373 23.403 23.432 23.462

23.491 23.521 23.550 23.580 23.609

23.639

04 001

6 In. Hg. 22.165 22.195

(05) ....06

a7, In. Hg. 22.168 22.198 22.227 22257 22.286

22.316 22.345 22.375 22.404 22.434

22.463 22.493 22.523 22.552 22.582

22.611 22.641 22.670 22.700 22.729

22.759 22.788 22.818 22.847 22.877

22.906 22.936 22.965 22.995 23.025

23.054 23.084 23.113 23.143 23.172

23.202 23.231 23.261 23.290 23.320

23.349 23.379 23.408 23.438 23.467

23.497 23.527 23.556 23.586 23.615

23.645

07

001 .002 .002

8

In. Hg.

22.171 22.201 22.230 22.260 22.289

22.319 22.348 22.378 22.407 22.437

22.466 22.496 22.525 22.555 22.585

22.614 22.644 22.673 22.703 22.732

22.762 22.791 22.821 22.850 22.880

22.909 22.939 22.968 22.998 23.027

23.057 23.087 23.116 23.146 25075

23.205 23.234 23.264 23.293 23.323

23.392 23.382 23.411 23.441 23.470

23.500 23.529 23.559 23.589 23.618

23.648

9 In. Hg. 22.174 22.204 22.233 22.263 22.292

22.322 22.351 22.381 22.410 22.440

22.469 22.499 22.528 22.558 22.587

22.617 22.647 22.676 22.706 22.735

22.765 22.794 22.824 22.853 22.883

22.912 22.942 22.971 23.001 23.030

23.060 23.089 23.119 23.149 23.178

23.208 23.237 23.267 23.296 23.326

23.309 23.385 23.414 23.444 23.473

23.503 23.932 23.562 23.592 23.621

23.651

08 .09 002 .003

Milli

bars 0

In. Hg. 800 23.624 801 23.654 802 23.683 803 23.713 804 23.742 805 23.772 806 23.801 807 23.831 808 23.860 809 23.890 810 23.919 811 23.949 812 23.978 813 24.008 814 24.037 815 24.067 816 24.096 817 24.126 818 24.156 819 24.185 820 24.215 821 24.244 822 24.274 823 24.303 824 24.333 825 24.362 826 24.392 827 24.421 828 24.451 829 24.480 830 24.510 831 24.539 832 24.569 833 24.598 834 24.628 835 24.658 836 24.687 837 24.717 838 24.746 839 24.776 840 24.805 841 24.835 842 24.864 843 24.894 844 24.923 845 24.953 846 24.982 847 25.012 848 25.041 849 25.071 850 25.100

oll In. Hg. 23.627 23.656 23.686 23.716 23.745

23.775 23.804 23.834 23.863 23.893

23.922 23.952 23.981 24.011 24.040

24.070 24.099 24.129 24.158 24.188

24.218 24.247 24.277 24.306 24.336

24.365 24.395 24.424 24.454 24.483

24.513 24.542 24.572 24.601 24.631

24.660 24.690 24.720 24.749 24.779

24.808 24.838 24.867 24.897 24.926

24.956 24.985 25.015 25.044 25.074

25.103

Proportional parts

2 In. Hg. 23.630 23.659 23.689 23.718 23.748

23.778 23.807 23.837 23.866 23.896

23.925 23.955 23.984 24.014 24.043

24.073 24.102 24.132 24.161 24.191

24.220 24.250 24.280 24.309 24.339

24.368 24.398 24.427 24.457 24.486

24.516 24.545 24.575 24.604 24.634

24.663 24.693 24.722 24.752 24.782

24.811 24.841 24.870 24.900 24.929

24.959 24.988 25.018 25.047 25.077

25.106

TABLE 10 (CONTINUED) MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

a3, In. Hg. 23.633 23.662 23.692 23.721 23751

23.780 23.810 23.840 23.869 23.899

23.928 23.958 23.987 24.017 24.046

24.076 24.105 24.135 24.164 24.194

24.223 24.253 24.283 24.312 24.342

24.371 24.401 24.430 24.460 24.489

24.519 24.548 24.578 24.607 24.637

24.666 24.696 24.725 24.755 24.785

24.814 24.844 24.873 24.903 24.932

24.962 24.991 25.021 25.050 25.080

25.109

mb. .01 in. Hg. .000

SMITHSONIAN METEOROLOGICAL TABLES

4

In. Hg.

23.636 23.665 23.695 23.724 23.754

23.783 23.813 23.843 23.872 23.902

23.931 23.961 23.990 24.020 24.049

24.079 24.108 24.138 24.167 24.197

24.226 24.256 24.285 24.315 24.345

24.374 24.404 24.433 24.463 24.492

24.522 24.551 24.581 24.610 24.640

24.669 24.699 24.728 24.758 24.787

24.817 24.847 24.876 24.906 24.935

24.965 24.994 25.024 25.053 25.083

Z2oni2

(continued)

2, 03 001 .001

B5 In. Hg. 23.639 23.668 23.698 23.727 23.757

23.786 23.816 23.845 23.875 23.905

23.934 23.964 23.993 24.023 24.052

24.082 24.111 24.141 24.170 24.200

24.229 24.259 24.288 24.318 24.347

24.377 24.407 24.436 24.466 24.495

24.525 24.554 24.584 24.613 24.643

24.672 24.702 24.731 24.761 24.790

24.820 24.849 24.879 24.909 24.938

24.968 24.997 25.027 25.056 25.086

259115

04 .001

6 In. Hg. 23.642 23.671 23.701 23.730 23.760

23.789 23.819 23.848 23.878 23.907

23.937 23.967 23.996 24.026 24.055

24.085 24.114 24.144 24.173 24.203

24.232 24.262 24.291 24.321 24.350

24.380 24.409 24.439 24.469 24.498

24.528 24.557 24.587 24.616 24.646

24.675 24.705 24.734 24.764 24.793

24.823 24.852 24.882 24.911 24.941

24.971 25.000 25.030 25.059 25.089

25.118

05.06 001 .002 .002

7

In. Hg.

23.645 23.674 23.704 23.1a3 23.763

23.792 23.822 23.851 23.881 23.910

23.940 23.969 23.999 24.029 24.058

24.088 24.117 24.147 24.176 24.206

24.235 24.265 24.294 24.324 24.353

24.383 24.412 24.442 24.471 24.501

24.531 24.560 24.590 24.619 24.649

24.678 24.708 24.737 24.767 24.796

24.826 24.855 24.885 24.914 24.944

24.974 25.003 25.033 25.062 25.092

25.121

07

8

In. Hg,

23.648 23.677 23.707 23.736 23.766

23.795 23.825 23.854 23.884 23.913

23.943 23.972 24.002 24.031 24.061

24.091 24.120 24.150 24.179 24.209

24.238 24.268 24.297 24.327 24.356

24.386 24.415 24.445 24.474 24.504

24.534 24.563 24.593 24.622 24.652

24.681 24.711 24.740 24.770 24.799

24.829 24.858 24.888 24.917 24.947

24.976 25.006 25.036 25.065 25.095

25.124

.08

45

9 In. Hg. 23.651 23.680 23.710 23.739 23.769

23.798 23.828 23.857 23.887 23.916

23.946 23.975 24.005 24.034 24.064

24.094 24.123 24.153 24.182 24.212

24.241 24.271 24.300 24.330 24.359

24.389 24.418 24.448 24.477 24.507

24.536 24.566 24.596 24.625 24.655

24.684 24.714 24.743 24.773 24.802

24.832 24.861 24.891 24.920 24.950

24.979 25.009 25.038 25.068 25,098

2527

09

002 .003

46

In. Hg. In. Hg. 25.100 25.103

25.219 25.222 25.248 25.251

25.307 25.310 25.337 25.340 25.366 25.369

25.396 25.399 25.425 25.428 25.455 25.458 25.484 25.487 25.014 25.017

25.543 25.546.

25.973 25.070 25.602 25.605 25.632 25.635 25.662 25.665

25.691 25.694 25.721 25.724 25.750 25.753 25.780 25.783 25.809 25.812

25.839 25.842 25.868 25.871 25.898 25.901 25.927 25.930 25.957 25.960

25.986 25.989 26.016 26.019 26.045 26.048 26.075 26.078 26.105 26.107

26.134 26.137 26.164 26.167 26.193 26.196 26.223 26.226 26.252 26.255

26.282 26.285 26.311 26.314 26.341 26.344 26.370 26.373 26.400 26.403

26.429 26.432 26.459 26.462 26.488 26.491 26.518 26.521 26.547 26.550

26.577 26.580

Proportional parts

74 In. Hg. 25.106 25.136 25.165 25.195 25.225

25.254 25.284 25.313 25.343 25.372

25.402 25.431 25.461 25.490 25.520

25.549 29.979 25.608 25.638 25.667

25.697 25.727 25.756 25.786 25.815

25.845 25.874 25.904 25.933 25.963

25.992 26.022 26.051 26.081 26.110

26.140 26.169 26.199 26.229 26.258

26.288 26.317 26.347 26.376 26.406

26.435 26.465 26.494 26.524 26.553

26.583

mb.

TABLE 10 (CONTINUED) MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

Ss} In. Hg. 25.109 25.139 25.168 25.198 25.227

29.297 25.287 25.316 25.346 25.375

25.405 25.434 25.464 25.493 25.523

251552 25.582 25.611 25.641 25.670

25.700 25.729 25.759 25.789 25.818

25.848 25.877 25.907 25.936 25.966

25.995 26.025 26.054 26.084 26.113

26.143 26.172 26.202 26.231 26.261

26.291 26.320 26.350 26.379 26.409

26.438 26.468 26.497 -26.527 26.556

26.586

01

in. Hg. .000 SMITHSONIAN METEOROLOGICAL TABLES

A

In. Hg.

25.112 25.142 25.171 25.201 25.230

25.260 25.289 25.319 25.349 25.378

25.408 25.437 25.467 25.496

26.589

(continued)

02 .03 001 .001

5 6 In. Hg. In. Hg. 25.115 425548 25.145 25.148 25.174 2SAG7 25.204 25.207 25.233 25:236

25.263 25.266 29.292 25.295 25.322 29.025 25.351 25.354 25.381 25.384

25.411 25.414 25.440 25.443 25.470 25.473 25.499 25.502 25.929 29.932

25.598 25.561 25.988 25.591 25.617 25.620 25.647 25.650 25.676 25.679

25.706 25.709 251739. 29;/38 25.765 25.768 25.794 25.797 25.824 25.827

25.853 25.856 25.883 25.886 25.913 25.916 25.942 25.945 25.972 25.975

26.001 26.004 26.031 26.034 26.060 26.063 26.090 26.093 26.119 26.122

26.149 26.152 26.178 26.181 26.208 26.211 26.237 26.240 26.267 26.270

26.296 26.299 26.326 26.329 26.356 26.358 26.385 26.388 26.415 26.418

26.444 26.447 26.474 26.477 26.503, 26.506 26.533 26.536 26.562 26.565

26.592 26.595

04 05 .06

|

In. Hg.

25.121 Zo.151 25.180 25.210 25.239

25.269 25.298 25.328 29.307 25.387

25.416 25.446 25.476 25.505 25.535

25.564 25.594 25.623 25.653 25.682

25.712 25.741 25.771 25.800 25.830

25.859 25.889 25.918 25.948 25.978

26.007 26.037 26.066 26.096 26.125

26.155 26.184 26.214 26.243 26.273

26.302 26.332 26.361 26.391 26.420

26.450 26.480 26.509 26.539 26.568

26.598

07

001 .001 .002 .002

8

In. Hg.

25.124 25.154 25.183 25.213 25.242

25.272 25.301 25.331 25.360 25.390

25.419 25.449 25.478 25.508 25.538

25.567 25.597 25.626 25.656 25.685

25:715 25.744 25.774 25.803 25.833

25.862 25.892 25.921 25.951 25.980

26.010 26.040 26.069 26.099 26.128

26.158 26.187 26.217 26.246 26.276

26.305 26.335 26.364 26.394 26.423

26.453 26.482 26.512 26.542 26.571

26.601

.08

9 In. Hg. 25.127 25.157 25.186 25.216 25.245

25.275 25.304 25.334 25.363 25.393

25.422 25.452 25.481 yaoi il 25.540

25.570 25.600 25.629 25.659 25.688

25.718 25.747 25.777 25.806 25.836

25.865 25.895 25.924 25.954 25.983

26.013 26.042 26.072 26.102 26.131

26.161 26.190 26.220 26.249 26.279

26.308 26.338 26.367 26.397 26.426

26.456 26.485 26.515 26.544 26.574

26.604

.09

002 .003

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

bars 0 al fe 3 In. Hg. In. Hg. In. Hg. In. Hg. 900 26.577 26.580 26.583 26.586 901 26.607 26.609 26.612 26.615 902 26.636 26.639 26.642 26.645 903 26.666 26.669 26.671 26.674 904 26.695 26.698 26.701 26.704 905 26.725 26.728 26.731 26.733 906 26.754 26.757 26.760 26.763 907 26.784 26.787 26.790 26.793 908 26.813 26.816 26.819 26.822 909 26.843 26.846 26.849 26.852 910 26.872 26.875 26.878 26.881 911 26.902 26.905 26.908 26.911 912 26.931 26.934 26.937 26.940 913 26.961 26.964 26.967 26.970 914 26.990 26.993 26.996 26.999 915 27.020 27.023 27.026 27.029 916 27.049 27.052 27.055 27.058 917 27.079 27.082 27.085 27.088 918 27.109 27.111 27.114 27.117 919 27.138 27.141 27.144 27.147 920 BANOS MQLAZS27AT3 27476 921 27.197 27.200 27.203 27.206 922 27.227 27.230 27.233 27.236 923 27.256 27.259 27.262 27.265 924 27.286 27.289 27.292 27.295 925 27.315 27.318 27.321 27.324 926 27.345 27.348 27.351 27.354 927 27.374 27.377 27.380 27.383 928 27.404 27.407 27.410 27.413 929 27.433 27.436 27.439 27.442 930 27.463 27.466 27.469 27.472 931 27.492 27.495 27.498 27.501 932 Poi PALSY OS) PNAS AIIM 933 27551 927554 4327-557 — (27.560 934 27.581 27.584 27.587 27.590 935 27.611 27.613 27.616 27.619 936 27.640 27.643 27.646 27.649 937 27.670 27.673 27.675 27.678 938 27.699 27.702 27.705 27.708 939 27.729 27.732: 27.735 27.738 940 27.758 27.761 27.764 27.767 941 27.788 27.791 27.794 27.797 942 27.817 27.820 27.823 27.826 943 27.847 27.850 27.853 27.856 944 27.876 27.879 27.882 27.885 945 27.906 27.909 27.912 27.915 946 27.935 27.938 27.941 27.944 947 27.965 27.968 27.971 27.974 948 27.994 27.997 28.000 28.003 949 28.024 28.027 28.030 28.033 950 28.053 28.056 28.059 28.062 Proportional parts a 8 ae

SMITHSONIAN METEOROLOGICAL TABLES

4 5 In. Hg. In. Hg. 26.589 26.592 26.618 26.621 26.648 26.651 26.677 26.680 26.707 26.710 26.736 26.739 26.766 26.769 26.796 26.798 26.825 26.828 26.855 26.858 26.884 26.887 26.914 26.917 26.943 26.946 26.973 26.976 27.002 27.005 27.032 27.035 27.061 27.064 27.091 27.094 27.120 27.123 27.150 27.153 27.179 27.182 27.209 27.212 27.238 27.241 27.268 27.271 27.298 27.300 27.327 27.330 PALSY) 27.360 27.386 27.389 27.416 27.419 27.445 27.448 27.475 27.478 27.504 27.507 27.534 27.537 27.563 27.566 27.593 27.596 27.622 27.625 27.652 27.655 27.681 27.684 27711 27.714 27.740 27.743 27.770 27.773 27.800 27.802 27.829 27.832 27.859 27.862 27.888 27.891 27.918 27.921 27.947 27.950 27.977 27.980 28.006 28.009 28.036 28.039 28.065 28.068

(continued) 02 03 .04 001 .001 .001

6 In. Hg. 26.595 26.624 26.654 26.683 26.713

26.742 26.772 26.801 26.831 26.860

26.890 26.920 26.949 26.979 27.008

27.038 27.067 27.097 27.126 27.156

27.185 27.215 27.244 27.274 27.303

27.333 27.362 27.392 27.422 27.451

27.481 27.510 27.540 27.569 27599

27.628 27.658 27.687 27.717 27.746

27.776 27.805 27.835 27.864 27.894

27.924 27.953 27.983 28.012 28.042

28.071

05 06 001 .002 .002

ff In. Hg. 26.598 26.627 26.657 26.686 26.716

26.745 26.775 26.804 26.834 26.863

26.893 26.922 26.952 26.982 27.011

27.041 27.070 27.100 27.129 27.159

27.188 27.218 27.247 —A PAM 27.306

27.336 27.365 27.395 27.424 27.454

27.484 27.513 27.543 27.572 27.602

27.631 27.661 27.690 27.720 27.749

27.779 27.808 27.838 27.867 27.897

27.927 27.956 27.986 28.015 28.045

28.074

07

8

In. Hg.

26.601 26.630 26.660 26.689 26.719

26.748 26.778 26.807 26.837 26.866

26.896 26.925 26.955 26.984 27.014

27.044 27.073 27.103 27.132 27.162

27.191 2022) 27.250 27.280 27.309

27.339 27.368 27.398 27.427 27.457

27.487 27.516 27.546 27.575 27.605

27.634 27.664 27.693 2123 27.752

27.782 27.811 27.841 27.870 27.900

27.929 27.959 27.989 28.018 28.048

28.077

.08

47

9 In. Hg. 26.604 26.633 26.663 26.692 26.722

26.751 26.781 26.810 26.840 26.869

26.899 26.928 26.958 26.987 27.017

27.047 27.076 27.106 27-135 27.165

27.194 27.224 27.253 27.283 272312

27.342 27.371 27.401 27.430 27.460

27.489 27.519 27.549 27.578 27.608

27.637 27.667 27.696 27.726 27.755

27.785 27.814 27.844 27.873 27.903

27.932 27.962 27.991 28.021 28.051

28.080

.09

002 .003

48 Milli pce 0 In. Hg. 950 28.053 951 28.083 952 28.113 953 28.142 954 28.172 955 28.201 956 28.231 957 28.260 958 28.290 959 28.319 960 28.349 961 28.378 962 28.408 963 28.437 964 28.467 965 28.496 966 28.526 967 28.555 968 28.585 969 28.615 970 28.644 971 28.674 972 28.703 973 28.733 974 28.762 975 28.792 976 28.821 977 28.851 978 28.880 979 28.910 980 28.939 981 28.969 982 28.998 983 29.028 984 29.058 985 29.087 986 29.117 987 29.146 988 29.176 989 29.205 990 29.235 991 29.264 992 29.294 993 29.323 994 29.353 995 29.382 996 29.412 997 29.441 998 29.471 999 29.500 1000 29.530

TABLE 10 (CONTINUED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

alt In. Hg. 28.056 28.086 28.115 28.145 28.175

28.204 28.234 28.263 28.293 28.322

28.352 28.381 28.411 28.440 28.470

28.499 28.529 28.558 28.588 28.618

28.647 28.677 28.706 28.736 28.765

28.795 28.824 28.854 28.883 28.913

28.942 28.972 29.001 29.031 29.060

29.090 29.120 29.149 29.179 29.208

29.238 29.267 29.297 29.326 29.356

29.385 29.415 29.444 29.474 29.503

29.533

Proportional parts

L In. Hg. 28.059 28.089 28.118 28.148 28.178

28.207 28.237 28.266 28.296 28.325

28.355 28.384 28.414 28.443 28.473

28.502 28.532 28.561 28.591 28.620

28.650 28.680 28.709 28.739 28.768

28.798 28.827 28.857 28.886 28.916

28.945 28.975 29.004 29.034 29.063

29.093 29.122 29.152 29.182 29.211

29.241 29.270 29.300 29°329 29.359

29.388 29.418 29.447 29.477 29.506

29.536

<) In. Hg. 28.062 28.092 28.121 28.151 28.180

28.210 28.240 28.269 28.299 28.328

28.358 28.387 28.417 28.446 28.476

28.505 28.535 28.564 28.594 28.623

28.653 28.682 28.712 28.742 28.771

28.801 28.830 28.860 28.889 28.919

28.948 28.978 29.007 29.037 29.066

29.096 29.125 29.155 29.184 29.214

29.244 29.273 29.303 29.332 29.362

29.391 29.421 29.450 29.480 29.509

29.539

mb. .01 in. Hg. .000

SMITHSONIAN METEOROLOGICAL TABLES

4 In. Hg. 28.065 28.095 28.124 28.154 28.183

28.213 28.242 28.272 28.302 28.331

28.361 28.390 28.420 28.449 28.479

28.508 28.538 28.567 28.597 28.626

28.656 28.685 28.715 28.744 28.774

28.804 28.833 28.863 28.892 28.922

28.951 28.981 29.010 29.040 29.069

29.099 29.128 29.158 29.187 29.217

29.246 29.276 29.306 29.335 29.365

29.394 29.424 29.453 29.483 29.512

29.542

(continued)

02 03 001 .001

5 In. Hg. 28.068 28.098 28.127 28.157 28.186

28.216 28.245 28.275 28.304 28.334

28.364 28.393 28.423 28.452 28.482

28.511 28.541 28.570 28.600 28.629

28.659 28.688 28.718 28.747 28.777

28.806 28.836 28.866 28.895 28.925

28.954 28.984 29.013 29.043 29.072

29.102 29.131 29.161 29.190 29.220

29.249 29.279 29.309 29.338 29.368

29.397 29.427 29.456 29.486 29.515

29.545

04 .001

6 P|

Inve genes.

28.071 28.074 28.101 28.104 28.130 28.133 28.160 28.163 28.189 28.192

28.219 28.222 28.248 28.251 28.278 28.281 28.307 28.310 28.337 28.340

28.366 28.369 28.396 28.399 28.426 28.429 28.455 28.458 28.485 28.488

28.514 28.517 28.544 28.547 28.573 28.576 28.603 28.606 28.632 28.635

28.662 28.665 28.691 28.694 28.721 28.724 28.750 28.753 28.780 28.783

28.809 28.812 28.839 28.842 28.869 28.871 28.898 28.901 28.928 28.931

28.957 28.960 28.987 28.990 29.016 29.019 29.046 29.049 29.075 29.078

29.105 29.108 29.134 29.137 29.164 29.167 29.193 29.196 29.223 29.226

29.252 29.255 29.282 29.285 29.311 29.314 29.341 29.344 29.87 29373

29.400 29.403 29.430 29.433 29.459 29.462 29.489 29.492 29.518 29.521

29.548 29.551

105) 064.5, 07 001 .002 .002

TABLE 10 (CONTINUED) MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury. Pe he ay 2 @ as) sh eee ay

In. Hg. In. Hg. In. Hg. In. Hg. In. Hg. In. Hg. In. Hg. In. Hg.

1000 =. 29.530 29.533 29.536 29.539 29.542 29.545 29.548 29.551 1001 29.560 29.562 29.565 29.568 29.571 29.574 29.577 29.580 1002 29,589 29.592 29.595 29.598 29.601 29.604 29.607 29.610 1003 29.619 29.622 29.624 29.627 29.630 29.633 29.636 29.639 1004 =. 29.648 29.651 29.654 29.657 29.660 29.663 29.666 29.669

1005 29.678 29.681 29.684 29.686 29.689 29.692 29.695 29.698 1006 §=. 29.707 29.710 29.713 29.716 29.719 29.722 29.725 29.728 1007 =. 29.737 29.740 29.743 29.746 29.749 29.751 29.754 29.757 1008 29.766 29.769 29.772 29.775 29.778 29.781 29.784 29.787 1009 29.796 29.799 29.802 29.805 29.808 29.811" 29.813. 29.816

1010 29.825 29.828 29.831 29.834 29.837 29.840 29.843 29.846 1011 29.855 29.858 29.861 29.864 29.867 29.870 29.873 29.875 1012 = 29.884 29.887 29.890 29.893 29.896 29.899 29.902 29.905 1013. 29.914 29.917 29.920 29.923 29.926 29.929 29.932 29.935 1014. + 29.943 29.946 29.949 29.952 29.955 29.958 29.961 29.964

1015 29.973 29.976 29.979 29.982 29.985 29.988 29.991 29.994 1016 =. 30.002. 30.005 30.008 30.011 30.014 30.017 30.020 30.023 1017 = 30.032 30.035 30.038 30.041 30.044 30.047 30.050 30.053 1018 30.062 30.064 30.067 30.070 30.073 30.076 30.079 30.082 1019 = 30.091 30.094 30.097 30.100 30.103 30.106 30.109 30.112

1020 = 30.121 30.124 30.126 30.129 30.132 30.135 30.138 30.141 1021 = 30.150 30.153 30.156 30.159 30.162 30.165 30.168 30.171 1022 30.180 30.183 30.186 30.188 30.191 30.194 30.197 30.200 1023 = 30.209» 30.212 30.215 30.218 30.221 30.224 30.227 30.230 1024 30.239 30.242 30.245 30.248 30.251 30.253 30.256 30.259

1025 30.268 30.271 30.274 30.277 30.280 30.283 30.286 30.289 1026 30.298 30.301 30.304 30.307 30.310 30.313 30.315 30.318 1027 30.327 30.330 30.333 30.336 30.339 30.342 30.345 30.348 1028 = =30.357 30.360 30.363 30.366 30.369 30.372 30.375 30.377 1029 =. 30.386) 30.389 §=30.392 30.395 30.398 30.401 30.404 30.407

1030 30.416 30.419 30.422 30.425 30.428 30.431 30.434 30.437 1031 30.445 30.448 30.451 30.454 30.457 30.460 30.463 30.466 1032 30.475 30.478 30.481 30.484 30.487 30.490 30.493 30.496 1033 = 30.504 30.507 30.510 30.513 30.516 30.519 30.522 30.525 1034 = 30.534 30.537 30.540 30.543 30.546 30.549 30.552 30.555

1035 30.564 30.566 30.569 30.572 30.575 30.578 30.581 30.584 1036 =. 30.593. 30.596 = 30.599 30.602 30.605 30.608 30.611 30.614 1037 = 30.623 30.626 30.628 30.631 30.634 30.637 30.640 30.643 1038 30.652 30.655 30.658 30.661 30.664 30.667 30.670 30.673 1039 = 30.682 30.685 30.688 30.691 30.693 30.696 30.699 30.702

1040 = 30.711 30.714 30.717 30.720 30.723 30.726 30.729 30.732 1041 = 30.741 30.744 930.747 30.750 30.753 30.755 30.758 30.761 1042) =. 30.770 30.773 30.776 30.779 30.782 30.785 30.788 30.791 1043 = 30.800 30.803 30.806 30.809 30.812 30.815 30.817 30.820 1044 30.829 30.832 30.835 30.838 30.841 30.844 30.847 30.850

1045 30.859 30.862 30.865 30.868 30.871 30.874 30.877 30.880 1046 =: 30.888 30.891 30.894 30.897 30.900 30.903 30.906 30.909 1047 = 30.918 30.921 30.924 30.927 30.930 30.933 30.936 30.939 1048 = 30.947 30.950 30.953 30.956 30.959 30.962 30.965 30.968 1049 30.977 30.980 30.983 30.986 30.989 30.992 30.995 30.998

1050 31.006 31.009 31.012 31.015 31.018 31.021 31.024 31.027 (continued)

mb) 0)». 024 JOS 04) 205, 4:06. t:.07 in. Hg. .000 .001 .001 .001 .001 .002 .002

SMITHSONIAN METEOROLOGICAL TABLES

Proportional parts

49

50

0 In. Hg. 31.006 31.036 31.066 31.095 31.125

31.154 31.184 31.213 31.243 31.272

31.302 31.331 31.361 31.390 31.420

31.449 31.479 31.508 31.538 31.568

31.597 31.627 31.656 31.686 31.715

31.745 31.774 31.804 31.833 31.863

31.892 31.922 31.951 31.981 32.010

32.040 32.070 32.099 32.129 32.158

32.188 32.217 32.247 32.276 32.306

32.335 32.365 32.394 32.424 32.453

32.483

TABLE 10 (CONCLUDED)

MILLIBARS TO INCHES OF MERCURY 1 millibar = 0.02952998 inch of mercury.

all In. Hg. 31.009 31.039 31.068 31.098 31.128

31.157 31.187 31.216 31.246 31.275

31.305 31.334 31.364 31.393 31.423

31.452 31.482 31.511 31.541 31.571

31.600 31.630 31.659 31.689 31.718

31.748 SEZ77 31.807 31.836 31.866

31.895 31.925 31.954 31.984 32.013

32.043 32.073 32.102 32.132 32.161

32.191 32.220 32.250 32.279 32.309

32.338 32.368 32.397 32.427 32.456

32.486

Proportional parts

2 3 4 S In. Hg. In. Hg. In. Hg. In. Hg. SLO SOIS) SOL 31.021 31.042 31.045 31.048 31.051 31.071 31.074 31.077 31.080 31.101 31.104 31.107 31.110 31.131 31.133 31.136 31.139

31.160 31.163 31.166 31.169 31.190 31.193 31.195 31.198 SUZI9(PSN222 31.225 31.228 SU 249 HSUs252 31.255 31257, 31.278 31.281 31.284 31.287

31.308 31.311 31.314 31.317 31.337 31.340 31.343 31.346 Siso7 oles/0 310373 31.376 31.396 31.399 31.402 31.405 31.426 31.429 31.432 31.435

31.455 31.458 31.461 31.464 31.485 31.488 31.491 31.494 31.514 31.517 31.520 31.523 31.544 31.547 31.550 31.553 31.573 31.576 31.579 31.582

31.603 31.606 31.609 31.612 31.633 31.635 31.638 31.641 31.662 31.665 31.668 31.671 31.692. 31.695 31.697 31.700 31.721, 31.724 31.727 31.730

31.751 31.754 31.757 31.759 31.780 31.783 31.786 31.789 31.810 31.813 31.816 31.819 31.839 31.842 31.845 31.848 31.869 31.872 31.875 31.878

31.898 31.901 31.904 31.907 31.928 31.931 31.934 31937 31.957 31.960 31.963 31.966 31.987 31.990 31.993 31.996 32.016 32.019 32.022 32.025

32.046 32.049 32.052 32.055 32.075 32.078 32.081 32.084 32.105.32.108. 32:10 32.114 32.135. 32.137 32.140 32.143 32.164 32.167 32.170 32.173

32.194 32.197 32.199 32.202 S2:223" Sk220: 32.229 32.232 B2.253 102-200 32.299 32.262 32.282 32.285 32.288 32.291 $2.12) 792.315 32318 32.321

32.341 32.344 32.347 32.350 82.371 (752.374 | 32.377 32.380 32.400 32.403 32.406 32.409 32.430 32.433 32.436 32.439 32.459 32.462 32.465 32.468

32.489 32.492 32.495 32.498

mb. 01 02 03 04 in. Hg. .000 .001 .001 .001

SMITHSONIAN METEOROLOGICAL TABLES

.05 .001

6 In. Hg. 31.024 31.054 31.083 SUIS) 31.142

31.172 31.201 31.231 31.260 31.290

312319 31.349 31.379 31.408 31.438

31.467 31.497 31.526 31.556 31.585

31.615 31.644 31.674 31.703 31.733

31.762 31.792 31.822 31.851 31.881

31.910 31.940 31.969 31.999 32.028

32.058 32.087 32.117 32.146 32.176

32.205 32.235 32.264 32.294 32.324

32.353 32.383 32.412 32.442 32.471

32.501

.06 002 .002

vy, In. Hg. 31.027 31.057 31.086 31.116 31.145

31.175 31.204 31.234 31.263 31.293

31.322 31.352 31.382 31.411 31.441

31.470 31.500 31.529 31.559 31.588

31.618 31.647 31.677 31.706 31.736

31.765 31.795 31.824 31.854 31.884

31.913 31.943 31.972 32.002 32.031

32.061 32.090 32.120 32.149 322079

32.208 32.238 32.267 32.297 32.326

32.356 32.386 32.415 32.445 32.474

32.504 07

8

In. Hg.

31.030 31.060 31.089 31.119 31.148

31.178 31.207 3237 31.266 31.296

31.325 31.355 31.384 31.414 31.444

31.473 31.503 31.532 31.562 31.591

31.621 31.650 31.680 31.709 31.739

31.768 31.798 31.827 31.857 31.886

31.916 31.946 31.975 32.005 32.034

32.064 32.093 32.123 S252 32.182

32.211 32.241 32.270 32.300 32.329

32.359 32.388 32.418 32.448 32.477

32.507 .08

9 In. Hg. 31.033 31.063 31.092 31.122 31.151

31.181 31.210 31.240 31.269 31.299

31.328 31.358 31.387 31.417 31.446

31.476 31.506 31.535 31.565 31.594

31.624 31.653 31.683 31-712 31.742

31771 31.801 31.830 31.860 31.889

31.919 31.948 31.978 32.008 32.037

32.067 32.096 32.126 32.159 32.185

32.214 32.244 32.273 32.303 32.332

32.362 32.391 32.421 32.450 32.480

32.510

.09

002 .003

TABLE 11 MILLIMETERS OF MERCURY TO MILLIBARS

1 millimeter of mercury = 1.333224 millibars. Milli-

51

meters 0 i 2 3 4 5 6 7 8 mb. mb. mb. mb. mb. mb. mb. mb. mb.

0 Oo Piss 1267 400 58s 6.67 800 9.33 10.67 10 13.33. 14.67 16.00 17.33 1867 20.00 21.33 2266 24.00 20 2666. 128100 °29:33 °3066 3200) °3333 3466 36.00 37.33 30 40.00 41.33 42.66 44.00 45.33 46.66 48.00 49.33 50.66 40 53.33 54.66 56.00 57.33 5866 60.00 61.33 62.66 63.99 50 66.66 67.99 69.33 70.66 71.99 73.33 74.66 75.99 77.33 60 79.99 81.33 82.66 83.99 85.33 86.66 8799 8933 90.66 70 93.33 94.66 95.99 9733 9866 99.99 101.33 10266 103.99 80 106.66 107.99 109.32 110.66 111.99 113.32 11466 115.99 117.32 90 119.99 121.32 122.66 123.99 125.32 126.66 127.99 129.32 130.66 100 133.32 134.66 135.99 137.32 138.66 139.99 141.32 142.65 143.99 110 146.65 147.99 149.32 150.65 151.99 153.32 154.65 155.99 157.32 120 159.99 161.32 162.65 163.99 165.32 166.65 16799 169.32 170.65 130 173.32 174.65 175.99 177.32 17865 179.99 181.32 18265 18398 140 186.65 187.98 189.32 190.65 191.98 193.32 194.65 195.98 197.32 150 199.98 201.32 202.65 203.98 205.32 206.65 207.98 209.32 210.65 160 213.32 214.65 215.98 217.32 21865 219.98 22132 22265 223.98 170 226.65 227.98 229.31 230.65 231.98 233.31 234.65 23598 23731 180 239.98 241.31 242.65 243.98 245.31 246.65 24798 24931 250.65 190 253.31 254.65 255.98 257.31 258.65 259.98 261.31 262.65 263.98 200 266.64 267.98 269.31 270.64 271.98 273.31 274.64 275.98 277.31 210 279.98 281.31 282.64 283.98 285.31 286.64 287.98 289.31 290.64 220 293.31 294.64 295.98 297.31 20864 299.98 301.31 30264 303.98 230 306.64 307.97 309.31 310.64 311.97 313.31 314.64 315.97 31731 240 319.97 321.31 322.64 323.97 325.31 326.64 327.97 32931 330.64 250 333.31 334.64 335.97 337.31 338.64 339.97 341.31 342.64 343.97 260 346.64 347.97 349.30 350.64 351.97 353.30 354.64 355.97 357.30 270 359.97 361.30 362.64 363.97 365.30 366.64 367.97 369.30 370.64 280 373.30 374.64 375.97 377.30 378.64 379.97 381.30 38264 383.97 290 386.63 387.97 389.30 390.63 391.97 393.30 394.63 395.97 397.30 300 399.97 401.30 402.63 403.97 405.30 406.63 407.97 409.30 410.63 310 413.30 414.63 415.97 417.30 41863 419.97 421.30 42263 423.97 320 426.63 427.96 429.30 430.63 431.96 433.30 434.63 435.96 437.30 330 439.96 441.30 442.63 443.96 445.30 446.63 447.96 449.30 450.63 340 453.30 454.63. 455.96 457.30 458.63 459.96 461.30 462.63 463.96 350 466.63 467.96 469.29 470.63 471.96 473.29 474.63 475.96 477.29 360 479.96 481.29 482.63 483.96 485.29 486.63 487.96 489.29 490.63 370 493.29 494.63 495.96 497.29 49863 499.96 501.29 502.63 503.96 380 506.63 507.96 509.29 510.62 511.96 513.29 51462 515.96 517.29 390 519.96 521.29 522.62 523.96 525.29 526.62 527.96 529.29 530.62 400 533.29 534.62 535.96 537.29 538.62 539.96 541.29 542.62 543.96 410 546.62 547.96 549.29 550.62 551.95 553.29 55462 555.95 557.29 420 559.95 561.29 562.62 563.95 565.29 566.62 567.95 569.29 570.62 430 573.29 574.62 575.95 577.29 57862 579.95 581.29 582.62 583.95 440 586.62 587.95 589.29 590.62 591.95 593.28 594.62 595.95 5097.28 450 599.95 601.28 602.62 603.95 605.28 606.62 607.95 609.28 610.62 460 613.28 614.62 615.95 617.28 618.62 619.95 621.28 622.62 623.95 470 626.62 627.95 629.28 630.61 631.95 633.28 63461 63595 637.28 480 639.95 641.28 642.61 643.95 64528 646.61 647.95 649.28 65061 490 653.28 654.61 655.95 657.28 658.61 659.95 661.28 662.61 663.95 500 666.61 667.95 669.28 670.61 671.94 673.28 674.61 675.94 677.28

(continued)

Maen Eee De DAS eA NG, Gruen aul esi rO Proportional parts mp 136027640853 67 80 93.107 1.20

SMITHSONIAN METEOROLOGICAL TABLES

52

Milli- meters

500 501 502 503 504

505 506 507 508 509

510 all 512 513 514

515 516 517 518 519

520 521 522, 523 524

525 526 527 528 529

530 531 532 533 534

535 536 537 538 a)

540 541 542 543 544

545 546 547 548 549

550

TABLE 11 (CONTINUED)

MILLIMETERS OF MERCURY TO MILLIBARS

1 millimeter of mercury = 1.333224 millibars.

0 mil mb. mb.

666.61 666.75 667.95 668.08 669.28 669.41 670.61 670.74 671.94 672.08

673.28 673.41 674.61 674.74 675.94 676.08 677.28 677.41 678.61 678.74

679.94 680.08 681.28 681.41 682.61 682.74 683.94 684.08 685.28 685.41

686.61 686.74 687.94 688.08 689.28 689.41 690.61 690.74 691.94 692.08

693.28 693.41 694.61 694.74 695.94 696.08 697.28 697.41 698.61 698.74

699.94 700.08 701.28 701.41 702.61 702.74 703.94 704.08 705.28 705.41

706.61 706.74 707.94 708.08 709.28 709.41 710.61 710.74 711.94 712.07

713.27 713.41 714.61 714.74 715.94 716.07 717.27 717.41 718.61 718.74

719.94 720.07 721.27 721.41 722.61 722.74 723.94 724.07 T2027 72541

726.61 726.74 727.94 728.07 72927, 72941 730.61 730.74 731.94 732.07

733.27 733.41

Proportional parts

2

mb. 666.88 668.21 669.55 670.88 672.21

673.54 674.88 676.21 677.54 678.88

680.21 681.54 682.88 684.21 685.54

686.88 688.21 689.54 690.88 692.21

693.54 694.88 696.21 697.54 698.88

700.21 701.54 702.88 704.21 705.54

706.88 708.21 709.54 710.88 712.21

713.54 714.87 716.21 717.54 718.87

720.21 721.54 722.87 724.21 725.54

726.87 728.21 729.54 730.87 732.21

733.54

3

mb. 667.01 668.35 669.68 671.01 672.34

673.68 675.01 676.34 677.68 679.01

680.34 681.68 683.01 684.34 685.68

687.01 688.34 689.68 691.01 692.34

693.68 695.01 696.34 697.68 699.01

700.34 701.68 703.01 704.34 705.68

707.01 708.34 709.68 711.01 712.34

713.67 715.01 716.34 717.67 719.01

720.34 721.67 723.01 724.34 725.67

727.01 728.34 729.67 731.01 732.34

733.67

4 mb. 667.15 668.48 669.81 671.14 672.48

673.81 675.14 676.48 677.81 679.14

680.48 681.81 683.14 684.48 685.81

687.14 688.48 689.81 691.14 692.48

693.81 695.14 696.48 697.81 699.14

700.48 701.81 703.14 704.48 705.81

707.14 708.48 709.81 711.14 712.47

713.81 715.14 716.47 717.81 719.14

720.47 721.81 723.14 724.47 725.81

727.14 728.47 729.81 731.14 732.47

733.81

(continued)

Mime. Ol OZ

mb

SMITHSONIAN METEOROLOGICAL TABLES

sn Ole 03

§ mb. 667.28 668.61 669.95 671.28 672.61

673.94 675.28 676.61 677.94 679.28

680.61 681.94 683.28 684.61 685.94

687.28 688.61 689.94 691.28 692.61

693.94 695.28 696.61 697.94 699.28

700.61 701.94 703.28 704.61 705.94

707.28 708.61 709.94 711.28 712.61

713.94 715.27 716.61 717.94 719.27

720.61 721.94 723.27 724.61 725.94

727.27 728.61 729.94 731.27 732.61

733.94

6

mb. 667.41 668.75 670.08 671.41 672.74

674.08 675.41 676.74 678.08 679.41

680.74 682.08 683.41 684.74 686.08

687.41 688.74 690.08 691.41 692.74

694.08 695.41 696.74 698.08 699.41

700.74 702.08 703.41 704.74 706.08

707.41 708.74 710.08 711.41 712.74

714.07 715.41 716.74 718.07 719.41

720.74 722.07 723.41 724.74 726.07

727.41 728.74 730.07 731.41 732.74

734.07

7 mb. 667.55 668.88 670.21 671.54 672.88

674.21 675.54 676.88 678.21 679.54

680.88 682.21 683.54 684.88 686.21

687.54 688.88 690.21 691.54 692.88

694.21 695.54 696.88 698.21 699.54

700.88 702.21 703.54 704.88 706.21

707.54 708.88 710.21 711.54 712.87

714.21 715.54 716.87 718.21 719.54

720.87 722.21 723.54 724.87 726.21

727.54 728.87 730.21 731.54 732.87

734.21

03 04 05 06 07 04 05 .07 .08 .09

8

mb. 667.68 669.01 670.35 671.68 673.01

674.34 675.68 677.01 678.34 679.68

681.01 682.34 683.68 685.01 686.34

687.68 689.01 690.34 691.68 693.01

694.34 695.68 697.01 698.34 699.68

701.01 702.34 703.68 705.01 706.34

707.68 709.01 710.34 711.67 713.01

714.34 715.67 717.01 718.34 719.67

721.01 722.34 723.67 725.01 726.34

727.67 729.01 730.34 731.67 733.01

734.34

08 .09 A) Lh eas 14

9 mb. 667.81 669.15 670.48 671.81 673.14

674.48 675.81 677.14 678.48 679.81

681.14 682.48 683.81 685.14 686.48

687.81 689.14 690.48 691.81 693.14