Saturation water vapour pressure (kPa)

Saturation water vapour pressure (kPa)

.get_ps(Temp, P, unitless)

Arguments

Temp

Temperature in Kelvin
P

Atmospheric pressure in kPa
unitless

Logical. Should function use parameters with units? The function is faster when FALSE, but input must be in correct units or else results will be incorrect without any warning.

Value

Value in kPa of class units

Details

Goff-Gratch equation (see http://cires1.colorado.edu/~voemel/vp.html)

This equation assumes P = 1 atm = 101.3246 kPa, otherwise boiling temperature needs to change

References

http://cires1.colorado.edu/~voemel/vp.html

Examples


T_leaf <- set_units(298.15, K)
P <- set_units(101.3246, kPa)
tealeaves:::.get_ps(T_leaf, P, FALSE)
#> 3.165367 [kPa]