Specific Humidity from Dew Point Temperature

Usage

hus_from_td(td, pa, nthreads = 1)

Arguments

td: dew point temperature (K).
pa: air pressure (hPa).
nthreads: an integer specifying the number of threads to use for computation (OpenMP). Default is 1.

Value

the computed specific humidity (kg/kg).

Note

#' air pressure variable should match the td correctly. If td is a three dimensional array on pressure levels [lon, lat, plev], pa values should the same on each [lon, lat] slice. See convert_plev_to_array.

In case you are using model levels, estimate pressure array beforehand.

Examples

data("ERA5_sfc")
t2d <- ERA5_sfc$t2d
sp <- ERA5_sfc$sp
res <- hus_from_td(t2d, sp)