The Hecras user manual states gridded Precipitation and Evapotranspiration can be input, however Version 6.3.1 only has point or constant Evapotranspiration options available. When will gridded Evapotranspiration input be available?
Gridded Evapotranspiration input is not yet available in Hecras Version 6.3.1, however it may be available in future versions.