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BANGLADESHDhaka, Rangpur, Sylhet & Rajshahi DivisionsImagery analysis:12 August 2017 | Published 15 August 2017 | Version 1.0

Flooding

FL20170815BGD

This map illustrates satellite-detected surface water extent in the central part of Bangladesh using a Sentinel-1 satellite image acquired on the 12 August 2017 with a total surface of 4,280,650 ha. In this analyzed area; 1,644,983 ha (38%) of lands are likely affected. These lands are mainly cropland irrigated and rainfed areas and estimated to 1,576,351 ha. The population exposure analysis using WorldPop data shows that ~17,000,000 people are potentially affected by floods in the analysed zone: ~8,400,000 are located in Dhaka Division and ~5,750,000 in Rajshahi Division. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.

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B A N G L A D E S HI N D I A

MYAN

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Dhaka

The depiction and use of boundaries, geographic names and related data shown here are not warranted to be error-free nor do they implyofficial endorsement or acceptance by the United Nations. UNOSAT is a program of the United Nations Institute for Training and Research(UNITAR), providing satellite imagery and related geographic information, research and analysis to UN humanitarian & developmentagencies & their implementing partners. This work by UNITAR-UNOSAT is licensed under a CC BY-NC 3.0.

Satellite Detected Waters in CentralBangladesh

Satellite Data (1): Sentinel-1Imagery Dates: 12 August 2017Resolution: 10 mCopyright: Copernicus 2017 / ESASource: ESA

CCI Land Cover Data: ESAPopulation data: WorldPopReference water: Global Surface Water / Nature540, 418-422 (2016)Baselines : OpenStreetMap, HDXOther Data: USGS, UNCS, NASA, NGA

Analysis : UNITAR - UNOSATProduction: UNITAR - UNOSAT

!IMap Scale for A3: 1:750,000

Analysis conducted with ArcGIS v10.4.1

Coordinate System: WGS 1984 UTM Zone 46NProjection: Transverse Mercator

Datum: WGS 1984Units: Meter

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Map location

Legend¥¦¬ Capital

City/TownRiver / WaterwayHighway/Primary roadDivision boundaryReference waterSatellite detected waters [12 August 2017]

Division Flooded area (ha) Exposed PopulationDhaka 780,331 8,380,363Rajshahi 511,656 5,747,476Sylhet 163,754 655,245Rangpur 106,013 1,214,445Chittagong 54,047 628,631Khulna 29,182 424,278Total 1,644,983 17,050,439