Spatial and temporal variability of flood seasonality in Wales

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dc.contributor.author Macdonald, Neil
dc.contributor.author Phillips, Ian D.
dc.contributor.author Mayle, Gareth
dc.date.accessioned 2011-06-14T09:25:04Z
dc.date.available 2011-06-14T09:25:04Z
dc.date.issued 2011-06-14
dc.identifier.citation Macdonald , N , Phillips , I D & Mayle , G 2011 , ' Spatial and temporal variability of flood seasonality in Wales ' Hydrological Processes , vol 24 , no. 13 , pp. 1806-1820 . , 10.1002/hyp.7618 en
dc.identifier.other PURE: 167376
dc.identifier.other dspace: 2160/7057
dc.identifier.uri http://hdl.handle.net/2160/7057
dc.description Macdonald, N., Phillips, I. D., Mayle, G. (2010). Spatial and temporal variability of flood seasonality in Wales. Hydrological Processes, 24 (13), 1806-1820. en
dc.description.abstract High-magnitude floods across Europe within the last decade have resulted in the widespread reassessment of flood risk; this coupled with the introduction of the Water Framework Directive (2000) has increased the need for a detailed understanding of seasonal variability in flood magnitude and frequency. Mean day of flood (MDF) and flood seasonality were calculated for Wales using 30 years of gauged river-flow records (1973-2002). Noticeable regional variations in timing and length of flood season are evident, with flooding occurring earlier in small catchments draining higher elevations in north and mid-west Wales. Low-altitude regions in West Wales exposed to westerly winds experience flooding during October-January, while large eastern draining catchments experience later flooding (January-February). In the northeast and mid-east regions December-January months experience the greatest number of floods, while the southeast has a slightly longer flood season (December-February), with a noticeable increase in January floods. Patterns obtained from MDF data demonstrate their effectiveness and use in analysing regional patterns in flood seasonality, but catchment-specific determinants, e. g. catchment wetness, size and precipitation regime are important factors in flood seasonality. Relatively strong correlations between precipitation and flood activity are evident in Wales, with a poorer relationship between flooding and weather types and the North Atlantic Oscillation (NAO). Copyright (C) 2010 John Wiley & Sons, Ltd. en
dc.format.extent 15 en
dc.language.iso eng
dc.relation.ispartof Hydrological Processes en
dc.subject flood en
dc.subject seasonality en
dc.subject North Atlantic Oscillation en
dc.subject gauged en
dc.subject Wales en
dc.title Spatial and temporal variability of flood seasonality in Wales en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1002/hyp.7618
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution Other IGES Research en
dc.description.status Peer reviewed en


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