Estimate Actual Vapour Pressure

Converts relative humidity (RH) to actual vapour pressure (AVP) using an estimation with maximum and minimum temperature. This function exists because SWAP uses AVP whereas many datasets contain RH. Read more on fao.org

est_avp(tmin, tmax, rh)

Arguments

tmin

vector, in kelvin (K)

tmax

vector, in kelvin (K)

rh

vector, in % (ie. 53.2)

Value

vector of AVP, rounded to 2 decimal placews

See also

load_swap_meteo() write_swap_meteo()

Examples

est_avp(tmin = c(1.8, 1.9, 2.0), tmax =  c(6, 7, 8),
                   rh = c(60.2, 40.5, 90.2))
#> [1] 0.49 0.34 0.80