Probable maximum flood: the potential for estimation in the UK using ReFH2

Haxton, Tracey; Vesuviano, Gianni ORCID:; Pucknell, Samuel; Kjeldsen, Thomas Rodding. 2023 Probable maximum flood: the potential for estimation in the UK using ReFH2. Hydrology Research, 54 (3). 360-371.

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The current reservoir safety guidance within the UK recommends the use of the FSR/FEH rainfall-runoff model to estimate PMF (probable maximum flood) peak flows for reservoirs within the highest risk category (A). However, the FSR/FEH model has been superseded by the ReFH2 rainfall-runoff model for all other flood risk purposes in the UK. This study develops a new modelling framework for PMF estimation using ReFH2 by translating the assumptions made within the current FSR/FEH PMF procedure and applying these within the ReFH2 rainfall-runoff model. Peak flows from the methodology are compared with those from the FSR/FEH model for 400+ catchments. The study highlights the potential for ReFH2 to be used as the rainfall-runoff model for all return periods, up to and including the PMF, thereby paving the way for using the ReFH2 model for reservoir safety studies.

Item Type: Publication - Article
Digital Object Identifier (DOI):
UKCEH and CEH Sections/Science Areas: Hydro-climate Risks (Science Area 2017-)
ISSN: 0029-1277
Additional Information. Not used in RCUK Gateway to Research.: Open access paper - full text available via Official URL link.
Additional Keywords: flood estimation, FSR/FEH, probable maximum flood, ReFH, reservoirs and dams
NORA Subject Terms: Hydrology
Date made live: 06 Nov 2023 10:16 +0 (UTC)

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