.get_Pa {tealeaves}R Documentation

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

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

Pa=P/(Rair(TleafTair)/2)P_\mathrm{a} = P / (R_\mathrm{air} (T_\mathrm{leaf} - T_\mathrm{air}) / 2)

Symbol R Description Units Default
PP P atmospheric pressure kPa 101.3246
RairR_\mathrm{air} R_air specific gas constant for dry air J / (kg K) 287.058
TairT_\mathrm{air} T_air air temperature K 298.15
TleafT_\mathrm{leaf} T_leaf leaf temperature K input

Value

Value in g / m3^3 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)


[Package tealeaves version 1.0.6 Index]