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

Haxton, Tracey; Vesuviano, Gianni ORCID: https://orcid.org/0000-0003-2157-8875; Pucknell, Samuel; Kjeldsen, Thomas Rodding. 2023 Probable maximum flood: the potential for estimation in the UK using ReFH2. Hydrology Research, 54 (3). 360-371. 10.2166/nh.2023.117

Before downloading, please read NORA policies.

Preview

Text
N535493JA.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0.
Download (662kB) | Preview

Official URL: http://dx.doi.org/10.2166/nh.2023.117

Abstract/Summary

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 However, the FSR/FEH model has been superseded by the ReFH2 rainfall-runoff model for all other flood risk purposes in the UK.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):	10.2166/nh.2023.117
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)
URI:	https://nora.nerc.ac.uk/id/eprint/535493

Item Type:

Publication - Article

Digital Object Identifier (DOI):

10.2166/nh.2023.117

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