hydromt.model.processes.meteo.pet_debruin#

hydromt.model.processes.meteo.pet_debruin(temp: DataArray, press: DataArray, k_in: DataArray, k_ext: DataArray, timestep: int = 86400, cp: float = 1005.0, beta: float = 20.0, cs: float = 110.0) → DataArray[source]#

Determine De Bruin (2016) reference evapotranspiration.

Parameters:

  • temp (xarray.DataArray) – DataArray with temperature [°C]

  • press (xarray.DataArray) – pressure at surface [hPa]

  • k_in (xarray.DataArray) – global (=short wave incoming) radiation [W m-2]

  • k_ext (xarray.DataArray) – TOA incident solar radiation [W m-2]

  • timestep (int, default 86400) – seconds per timestep

  • cp (float, default 1005.0) – standard cp [J kg-1 K-1]

  • beta (float, default 20.0) – correction constant [W m-2]

  • Cs (float, default 110.0) – empirical constant [W m-2]

Returns:

pet – reference evapotranspiration

Return type:

xarray.DataArray