Longitudinal distributions of river flood power : the combined automated flood, elevation and stream power (CAFES) methodology

Auteur(s) et Affiliation(s)

BARKER, D.M.

School of Civil Engineering, Univ., Birmingham, Royaume-Uni

School of Geography, Earth and Environmental Sciences, Univ., Birmingham, Royaume-Uni

Capita Symonds, Bristol, Royaume-Uni

LAWLER, D.M.

School of Geography, Earth and Environmental Sciences, Univ., Birmingham, Royaume-Uni

KNIGHT, D.W.

School of Civil Engineering, Univ., Birmingham, Royaume-Uni

MORRIS, D.G.

Centre for Ecology and Hydrology, Wallingford, Royaume-Uni

DAVIES, H.N.

Centre for Ecology and Hydrology, Wallingford, Royaume-Uni

STEWART, E.J.

Centre for Ecology and Hydrology, Wallingford, Royaume-Uni

Description :
The AA. present here a novel methodology CAFES (combined automated flood, elevation and stream power) to quantify downstream change in river flood power, based on integrating in a GIS framework Flood Estimation Handbook systems with the 5 m grid NEXTMap Britain digital elevation model derived from IFSAR (interferometric synthetic aperture radar). This provides a useful modelling platform to quantify at unprecedented resolution longitudinal distributions of flood discharge, elevation, floodplain slope and flood power at reach and basin scales. Longitudinal power trends are given for a sample of 5 river basins to demonstrate the usefulness of the approach. The CAFES methodology has significant international applicability for understanding basin-scale hydraulics, sediment transport, erosion and sedimentation processes and river basin management.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2009, vol. 34, n°. 2, p. 280-290, nombre de pages : 11, Références bibliographiques : 1,5 p.

Date :
2009

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais