pyet.meteo_utils.calc_rho#
- pyet.meteo_utils.calc_rho(pressure, tmean, ea)[source]#
Atmospheric air density calculated according to Allen et al. (1998).
- Parameters:
pressure (array_like) – atmospheric pressure [kPa].
tmean (array_like) – average day temperature [°C].
ea (array_like) – actual vapour pressure [kPa].
- Returns:
float or pandas.Series or xarray.DataArray containing the calculated mean air
density [kg/m3]
Examples
>>> rho = calc_rho(pressure, tmean, ea)
Notes
Based on equation (3-5) in Allen et al. (1998).
\[rho = 3.486 \frac{P}{T_{KV}}\]