Modelling the extreme hydrological event of Summer 2007 in the Severn Uplands from gauge and radar rainfall sources


Biggs, E.M., Atkinson, P.M. and De Roure, D.C. (2009) Modelling the extreme hydrological event of Summer 2007 in the Severn Uplands from gauge and radar rainfall sources. In, Chelmicki, W. and Siwek, J. (eds.) Proceedings of Hydrological Extremes in Small Basins: 12th Biennial International Conference of the Euromediterranean Network of Experimental and Representative Basins (ERB). Hydrological Extremes in Small Basins: 12th Biennial International Conference of the Euromediterranean Network of Experimental and Representative Basins (ERB) Paris, France, International Hydrological Programme (IHP) of the United Nations Educational, Scientific and Cultural Organisation (UNESCO), 1-8. (Technical Documents in Hydrology 84). (UNESCO Working Series SC-2009/WS/11).

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Description/Abstract

This paper provides a comparison of gauge interpolated and radar derived precipitation data sources for an upland
catchment in the UK for a time period when extreme hydrological conditions were prevalent. Subsequently,
a performance measure was used to evaluate the accuracy of hydrological simulation of extreme conditions using
the two independent precipitation data sources within a HEC-HMS modelling framework. Discrepancies between
gauge and radar time-series precipitation records were found to coincide with elevation, spatial distribution
of precipitation and distance from the radar source. The Nash-Sutcliffe performance measure indicated that
despite the higher temporal and spatial resolution of the radar data, interpolated gauging station records produced
comparative accuracy when replicating the extreme hydrological event of Summer 2007

Item Type: Book Section
Related URLs:
Keywords: extremes, radar rainfall, HEC-HMS, rainfall-runoff modelling
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Divisions: University Structure - Pre August 2011 > School of Geography > Remote Sensing and Spatial Analysis
ePrint ID: 72441
Date Deposited: 15 Feb 2010
Last Modified: 27 Mar 2014 18:51
Publisher: International Hydrological Programme (IHP) of the United Nations Educational, Scientific and Cultural Organisation (UNESCO)
URI: http://eprints.soton.ac.uk/id/eprint/72441

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