Bangladesh - Flood Extent waters in Central & Northern Bangladesh - UNOSAT

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