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module esat_m |
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implicit none |
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contains |
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elemental real function esat(T, P) |
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! Saturation vapor pressure of water in Pa. Buck, 1981, |
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! J. Appl. Meteor. 20, 1527-1532, equation (8). |
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real, intent(in):: T ! temperature, in K |
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real, intent(in):: P ! air pressure, in Pa |
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!-------------------------------------------------------------------- |
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esat = (1.0007 + 3.46e-8 * P) * 6.1121e2 & |
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* exp(17.502 * (T - 273.15) / (T - 32.18)) |
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end function esat |
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end module esat_m |
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