dot-get_Pa: P_a: density of dry air (g / m^3)

In muir-lab/tleavesMC: Schymanski Equation

Description

P_a: density of dry air (g / m^3)

Usage

.get_Pa(T_leaf, pars, unitless)

Arguments

T_leaf	Leaf temperature in Kelvin
pars	Concatenated parameters (leaf_par, enviro_par, and constants)
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.

Details

P_a = P / (R_air (T_leaf - T_air) / 2)

Symbol	R	Description	Units	Default
P	P	atmospheric pressure	kPa	101.3246
R_air	R_air	specific gas constant for dry air	J / (kg K)	287.058
T_air	T_air	air temperature	K	298.15
T_leaf	T_leaf	leaf temperature	K	input

Value

Value in g / m^3 of class units

Examples

library(tealeaves)

cs <- make_constants()
ep <- make_enviropar()
lp <- make_leafpar()

T_leaf <- set_units(298.15, K)

tealeaves:::.get_Pa(T_leaf, c(cs, ep, lp), FALSE)

muir-lab/tleavesMC documentation built on July 5, 2020, 12:23 a.m.