Slp_sat_vap: Slope of the saturation vapor pressure curve

Description Usage Arguments Details

Description

Estimates the slope of the saturation vapor pressure curve, Δ, given a specific temperature and saturation vapor pressure curve. Units of the returned value are (kPa C^{-1}).

Usage

1
slp_sat_vap(Ta, es)

Arguments

Ta

The air temperature above a body of water, T (C).

es

Saturation vapor pressure of air, e_{a} (kPa).

Details

Slope is estimated via (Allen et al. 1998):

Δ = \frac{4098 e_{s}}{(T_{a} + 237.3)^{2}}

Allen, RG, LS Pereira, D Raes, M Smith. 1998. Crop evapotranspiration - Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56. FAO, Rome, 300(9), D05109.


jmerc13/LakeIsodrology documentation built on May 5, 2019, 5:52 p.m.