ReFH2 unit hydrographs can only be created if the ReFH2 software is installed as this is what calculates the hydrograph and returns it to the software. The ReFH2 software can be purchased from: https://www.hydrosolutions.co.uk/software/refh-2/
|This method may not be available for your region. For more information, refer to the Regionalisation topic.|
Area - This is the catchment drainage area.