Calculating evapotranspiration using the FAO Penman-Monteith method

Evapotranspiration from snow-free surfaces is simulated using the FAO Penman-Monteith approach (Allen et al. 1998). It uses soil and land cover data which both have to provided as grid input files (see Spatial Input data).

Choose and configure method in openAMUNDSEN 

evapotranspiration:
    enabled: true
    min_crop_coefficient: 0.175
    grass_albedo: 0.23
    grass_emissivity: 0.985
    sealed_albedo: 0.4
    sealed_emissivity: 0.92
    mean_wind_speed: 2.
    mean_min_humidity: 45.
    surface_soil_layer_evaporation_depth: 0.125

References