Product ID: 3174 - English
Published: 10 Nov, 2020
GLIDE: TC20201028VNM


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This map illustrates satellite-detected surface waters in Thua Thien Hue Province of Viet Nam as observed from a Sentinel-1 image acquired on 10 November 2020 at 05:43 local time. Within the analyzed area of about 5,000 km2, a total of about 200 km2 of lands appear to be flooded. The water extent appears to have increased of about 50 km2 since 4 November 2020. Based on Worldpop population data and the detected surface waters, about 65,000 people are potentially exposed or living close to flooded areas.
This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.
Important Note: Flood analysis from radar images may underestimate the presence of standing waters in built-up areas and densely vegetated areas due to backscattering properties of the radar signal.
Satellite Data : Sentinel-1
Imagery Date (1) : 9 November 2020
Acquisition time (1) : 22:43 UTC
Imagery Date (2) : 3 November 2020
Acquisition time (2) : 22:43 UTC
Resolution : 10 cm
Copyright : Contain modified Copernicus Sentinel Data [2020]
Source : ESA
Administrative boundaries: OCHA ROAP
Population data: WorldPop [2020]
Reference Water: The European Commission's Joint Research Centre
Road: Open Street Map
Background: ALOS Global DSM
Analysis: UNITAR - UNOSAT
Production: UNITAR - UNOSAT