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14 Nov 2007 description

Using pre-flood data and current RADARSAT-1 data, an image showing flooded areas in the region around Villahermosa was created (below). In this image, areas of change (flood) are shown in blue. The flood extents were derived by performing a change detection analysis using RADARSAT-1 archive data (Oct. 12, 2003, ScanSAR Narrow beam, 25m pixel spacing) and a newly collected scene (Nov. 8, 2007, ScanSAR Narrow beam, 25m pixel spacing).

14 Nov 2007 description

Using pre-flood data and current RADARSAT-1 data, an image showing flooded areas in the region around Villahermosa was created (below). In this image, areas of change (flood) are shown in blue. The flood extents were derived by performing a change detection analysis using RADARSAT-1 archive data (Jan. 7, 2007, Wide beam mode) and a newly collected scene (Nov. 6, 2007, Standard beam, mode).