Product ID: 2648 - English
Published: 23 Aug, 2017
GLIDE: FL20170815BGD
FootPrint (Lat x Long, WSG84 Geographic, decimal degrees)
TopLeft: 23.7661405 x 91.3941041
BottomRight: 25.5988984 x 88.9478922

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This map illustrates satellite-detected surface water extent in the central and northern parts of Bangladesh using a Sentinel-1 satellite image acquired on the 22 August 2017. The total analysed area is about 4,284,431 ha. In this analysed area; 1,099,369 ha (39%) of lands are likely affected. These lands are mainly cropland irrigated and rainfed areas and estimated to 1,039,350 ha. The population exposure analysis using WorldPop data shows that ~10,000,000 people are potentially affected by floods in the analysed zone: ~5,400,000 are located in Dhaka Division and ~2,750,000 in Rajshahi Division. Please note that for visualization purposes the analyzed area is wider than the extent of this map.This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.
Satellite Data (1): Sentinel-1
Imagery Dates: 22 August 2017
Resolution: 10 m
Copyright: Copernicus 2017 / ESA
Source: ESA

CCI Land Cover Data: ESA
Population data: WorldPop
Reference water: Global Surface Water / Nature 540, 418-422 (2016)
Baselines : OpenStreetMap, HDX
Other Data: USGS, UNCS, NASA, NGA
Analysis : UNITAR - UNOSAT
Production: UNITAR - UNOSAT