Using ReFH2 to Generate TUFLOW Boundary Inputs: Difference between revisions

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In 2016, the Centre of Ecology and Hydrology (CEH) and Wallingford Hydro Solutions (http://www.hydrosolutions.co.uk) released another version of the revitalised rainfall-runoff model (ReFH2) which allows users to generate design flows and hydrographs from given rainfall events for both catchment and development sites. ReFH2 is the 2nd version of the “Revitalised Flood Handbook”, created and developed by Wallingford Hydro Solutions. It’s a rainfall-runoff model specifically applicable to England, Wales and parts of Scotland. It takes inputs from the Flood Estimation Handbook 2013 (FEH2013) website and generates design rainfall events and provides a method for calculating design runoff from subcatchments.

For a full description of the approaches, the reader is referred to their document which can be freely accessed at:-

To generate rainfall or runoff using ReFH2, firstly open the ReFH2 software and create a new ReFH project.

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Use the ‘Import from file’ option to import the XML files. The XML data can be catchment values or point data. Importing the xml file will populate the parameters. When using point descriptors, these do not have an area associated with them. Therefore, you will need to specify the area of the plot that you are interested in (if required this can also be edited later). Once an area value has been provided then it is possible to generate the rainfall hyetographs and runoff hydrographs and apply to TUFLOW in the same manner as for catchment descriptors.