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Flood Extent Mapping For Namibia Using Change Detection And Thresholding With Sar, Stephanie Long, Temilola E. Fatoyinbo, Frederick Policello
Flood Extent Mapping For Namibia Using Change Detection And Thresholding With Sar, Stephanie Long, Temilola E. Fatoyinbo, Frederick Policello
Department of Earth and Environment
A new method for flood detection change detection and thresholding (CDAT) was used with synthetic aperture radar (SAR) imagery to delineate the extent of flooding for the Chobe floodplain in the Caprivi region of Namibia. This region experiences annual seasonal flooding and has seen a recent renewal of severe flooding after a long dry period in the 1990s. Flooding in this area has caused loss of life and livelihoods for the surrounding communities and has caught the attention of disaster relief agencies. There is a need for flood extent mapping techniques that can be used to process images quickly, providing …