Title: Development of distributed flood forecasting models using weather radar and digital terrain data (357/1/T) : interim report
Author: R.J. Moore
Author: V. Bell
Author: G.A. Roberts
Author: D.G. Morris
Document Type: Monograph
Annotation: EA additional title info: development of distributed flood forecasting models using weather radar and digital terrain data
Abstract:
The availability of spatial estimates of rainfall from weather radar on a square grid has prompted the development of rainfall-runoff models which are structured to share the same grid. This report shows how the problem of parameterisation of such models can be overcome through the use of contour maps, or digital terrain models (DTMs). "Linkage functions" are used to relate a grid parameter, whose value is required for many grids, to only one or two regional parameters and grid values which can be obtained from DTMs or maps. A routing function is derived from contour maps or DTMs via an extension of the classical isochrone concept. Runoff production employs a saturation excess principle with absorption capacity linked to the average slope within each grid square, again measured from contour maps or DTMs.
Publisher: National Rivers Authority
Publication Date: 1992
Publication Place: Bristol
Subject Keywords: Meteorological factors; Flooding; Flood control; Forecasting
Extent: n.p. [67]
Permalink: http://www.environmentdata.org/archive/ealit:2196
Total file downloads: 27
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