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Frequency analysis of extreme rainfall in Cumbria, 16-20 November 2009

Stewart, E.J.; Morris, D.G.; Jones, D.A.; Gibson, H.S.. 2012 Frequency analysis of extreme rainfall in Cumbria, 16-20 November 2009. Hydrology Research, 43 (5). 649-662. 10.2166/nh.2012.033

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Abstract/Summary

Towards the end of November 2009, west Cumbria in northwest England experienced severe flooding which caused extensive damage and disruption throughout the region. The flooding was triggered by an exceptional rainstorm during which a record 316.4 mm of rainfall was recorded at Seathwaite Farm, Borrowdale over the 24-hour period up to 00:00 on 20th November. Drawing on the results of a recent project which has developed a new model of point rainfall depth-duration-frequency (DDF) for the UK, return periods are estimated for the highest point rainfall observations available for the Cumbrian event and compared with frequency estimates derived from the Flood Estimation Handbook rainfall model (Faulkner 1999). The spatial and temporal characteristics of the storm event are examined using data from the Environment Agency's raingauge network. For the two most affected rivers, the Derwent and the Leven, return periods of catchment rainfall are estimated for durations up to 96 hours.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.2166/nh.2012.033
Programmes: CEH Topics & Objectives 2009 onwards > Water > WA Topic 3 - Science for Water Management > WA - 3.1 - Develop next generation methods for river flow frequency estimation and forecasting
CEH Sections: Boorman
CEH fellows
ISSN: 0029-1277
Additional Information. Not used in RCUK Gateway to Research.: This document is the author’s final manuscript version of the journal article, incorporating any revisions agreed during the peer review process. Some differences between this and the publisher’s version remain. You are advised to consult the publisher’s version if you wish to cite from this article. The definitive peer-reviewed and edited version of this article is published in Hydrology Research, 43 (5). 649-662. 10.2166/nh.2012.033 and is available at www.iwapublishing.com
Additional Keywords: depth-duration-frequency model, extreme rainfall, Flood Estimation Handbook, statistical frequency
NORA Subject Terms: Hydrology
Date made live: 18 Sep 2012 13:04
URI: http://nora.nerc.ac.uk/id/eprint/16377

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