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A? Flood , and Imagery analysis: 18 July 2020 | Published 20 July 2020 | Version 1.0 FL20200713BGD

89?30'0"E 89?45'0"E 90?0'0"E 90?15'0"E

Map location

B A N G L A D E S H

Dhaka N

\! " 0 ' 0 ? 6 N 2 " 0 ' 0 ? 6 2

Satellite detected water extent as of 18 July 2020 over Mymensingh, Rajshahi and Rangpur Division of Bangladesh N " 0 This map illustrates satellite-detected surface ' 5 4 ? N " 5 0 2 '

waters over Mymensingh, Rajshahi and Rangpur 5 4 ? 5 Division of Bangladesh as observed from a 2 TerraSAR-X image acquired on 18 July 2020. Within the analyzed area of about 9,000 km2, a total of about 2,860 km2 of lands appear to be flooded. This is a preliminary analysis and has not yet been validated in the field. Please sendground feedback to UNITAR - UNOSAT.

Important Note: Flood analysis from radar N " 0 '

images may underestimate the presence of 0 3 ? N " 5 0 2 ' standing waters in built-up areas and densely 0 3 ? 5 vegetated areas due to backscattering properties 2 of the radar signal.

Legend

") Town/Village

J^ Airport

Primary road N " 0 Secondary road ' 5 1 ? N " 5 0 2 '

River 5 1 ? 5 International boundary 2

Division boundary

District boundary

Analysis extent

Reference water

Satellite detected water [18 July 2020]

Satellite detected water [13 July 2020] N " 0 ' 0 ? 5 N " 2 0 ' 0 ? 5 2 N " 0 ' 5 4 ? N " 4 0 2 ' 5 4 ? 4 2

Map Scale for A3: 1:500,000

km I! 0 2.5 5 10 15 20 89?30'0"E 89?45'0"E 90?0'0"E 90?15'0"E

Analysis conducted with ArcGIS v10.7 Satellite Data (Pre) : Sentinel-1 Satellite Data (Post) : TerraSAR-X Administrative boundaries: OCHA The depiction and use of boundaries, geographic names and related data shown here are not warranted Imagery Dates: 13 July 2020 Imagery Date : 18 July 2020 ROAP to be error-free nor do they imply official endorsement or acceptance by the United Nations. UNOSAT is Coordinate System: WGS 1984 UTM Zone 46N Resolution: 10 m Resolution : 8 m Population data: WorldPop [2020] 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 & development agencies Projection: Transverse Mercator Copyright: Contains modified Copyright : DLR e.V. 2020 Reference Water : JRC & their implementing partners. This work by UNITAR-UNOSAT is licensed under a CC BY-NC 3.0. Datum: WGS 1984 Copernicus Sentinel data [2020] Distribution : Airbus DS Geo GmbH River : OpenStreetMap Units: Meter Source: ESA Analysis : UNITAR - UNOSAT

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