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A near real-time algorithm for flood detection in urban and rural areas using high resolution Synthetic Aperture Radar images

By David Mason, Ian Davenport, Jeffrey Neal, Guy Schumann and Paul Bates

Abstract

A near real-time flood detection algorithm giving a synoptic overview of the extent of flooding in both urban and rural areas, and capable of working during night-time and day-time even if cloud was present, could be a useful tool for operational flood relief management and flood forecasting. The paper describes an automatic algorithm using high resolution Synthetic Aperture Radar (SAR) satellite data that assumes that high resolution topographic height data are available for at least the urban areas of the scene, in order that a SAR simulator may be used to estimate areas of radar shadow and layover. The algorithm proved capable of detecting flooding in rural areas using TerraSAR-X with good accuracy, and in urban areas with reasonable accuracy

Publisher: IEEE
Year: 2011
OAI identifier: oai:centaur.reading.ac.uk:19723

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