psychrometric: Psychrometric constant

In jmerc13/LakeIsodrology: Lake isotope hydrology

Description

Determines the psychrometric constant, γ (kPa K^{-1}), at a given pressure.

Usage

psychrometric(P = 101.3, ca = 0.001, L = 2.47)

Arguments

P	Air pressure, P (kPa). Assumed to be 101.3, a common value at sea level.
ca	Heat capacity of air, c_{a} (MJ kg^{-1} K^{-1}). Assumed to be 1e-3.
L	Latent heat of vaporization for water, λ_{v} (MJ kg^{-1}). Assumed to be 2.47.

Details

γ is defined as (Dingman 2008):

γ = \frac{c_{a} P}{0.622 λ_{v}}

Dingman SL. 2008. Physical hydrology. Waveland Press.

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