Nepal

This map illustrates satellite detected flood waters on 31 August 2008 for the affected Districts of Sunsari & Saptari, Nepal following a retaining wall breach on the Koshi River on 18 August 2008. Flood water detection was made using a time series of ENVISAT-ASAR (IMM) radar data recorded on 22 June, 27 July & 31 August 2008. The length of the retaining wall breach was estimated at 1,500 meters from ALOS-PALSAR radar data acquired on 24 August 2008. This flood detection is a preliminary analysis & has not yet been validated in the field. Map scale for A3: 1: ; Projection : UTM, Zone 45 North; Datum : WGS 1984.