Calculate vapor pressure from relative humidity

Source: R/calc_vp.R

Follows Abtew and Meleese (2013), Ch. 5 Vapor Pressure Calculation Methods

calc_vp(qair, patm = NA, elv = NA)

Arguments

qair

Air specific humidity (g g-1)

patm

Atmospehric pressure (Pa)

elv

Elevation above sea level (m) (Used only if patm is missing for calculating it based on standard sea level pressure)

Value

vapor pressure (Pa)