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Article Type:
Research Article

New Equations for Computing Vapor Pressure and Enhancement Factor

Arden L. Buck National Center for Atmospheric Research, Boulder, CO 80307

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Print Publication:
01 Dec 1981
DOI:
https://doi.org/10.1175/1520-0450(1981)020<1527:NEFCVP>2.0.CO;2
Page(s):
1527–1532
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Abstract

Equations are presented which relate saturation vapor pressure to temperature for moist air. The equations are designed to be easily implemented on a calculator or computer and can be used to convert in either direction. They are more accurate than the commonly used Goff-Gratch equations for the meteorologically interesting region of −80 to +50°C. Equations also are given for the enhancement factor.

Abstract

Equations are presented which relate saturation vapor pressure to temperature for moist air. The equations are designed to be easily implemented on a calculator or computer and can be used to convert in either direction. They are more accurate than the commonly used Goff-Gratch equations for the meteorologically interesting region of −80 to +50°C. Equations also are given for the enhancement factor.

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Cover Journal of Applied Meteorology and Climatology
Journal of Applied Meteorology and Climatology
Volume 20: Issue 12
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