饱和蒸汽压计算方法.docxThereisalargenumberofsaturationvaporpressureequationsusedtocalculatethepressureofwatervaporoverasurfaceofliquidwaterorice・・°CGoffGratchequation(SmithsonianTables,1984,afterGoffandGratch,1946):Logi0Pw=-(/^1) [1]+()・?(10心44(2373•⑹・[)+(10-(/").[)+Logio()withTin[K]andpw\n[hPa]WMO(Goff,1957):[2]Logi0Pw=(1-)・()+'4(1・〔0(-・(-1)))+'3(10(+4-76955*(V273J6/7))-1)+[K]andpwin[hPa](Note:mendationonapaperbyGoff(1957),(1988)(WMO,2000)showstheterm+'3(10(<769554(1-273-16/7))-1)paredtotheoriginalpublicationbyGoff(1957)..)•HylandandWexler(HylandandWexler,1983):Logpw=- [3]+0.**********-+'4严・+(7)withTin[K]andpwin[Pa]Buck(BuckResearchManual(1996);updatedequationfromBuck,,putingvaporpressureandenhancementfactor,.,20,1527-1532,1981)Pw=(18678-")t/(+t)门995/ ⑷pw=6
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