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).
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
- Allen, R. G., Pereira, L. S., Raes, D., and Smith, M. (1998): Crop evapotranspiration – Guidelines for computing crop water requirements, Tech. rep., https://www.fao.org/3/x0490e/x0490e00.htm.