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Product ID: 2585 - English
Published: 1 May, 2017
GLIDE: FL20170424HTI

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This map illustrates the satellite-detected water extent and evolution between 26 and 28 April 2017 in Les Cayes and Cavaillon communes in Sud Department located in the southwestern part of Haiti. The UNITAR-UNOSAT analysis used a Radarsat-2 image acquired on the 28 April 2017 and a Sentinel-1 satellite image acquired on the 26 April 2017. Between 26 and 28 April 2017 and within this map extent, waters receded from about ~590 ha of mainly agricultural lands : ~873 ha of satellite detected waters were observed on the 26 April 2017 and decreased to ~280 ha on the 28 April 2017. It corresponds to about ~68% decrease. It is likely that flood waters have been systematically underestimated along highly vegetated areas along main river banks and within built-up urban areas because of the special characteristics of the satellite data used. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to UNITAR-UNOSAT.
Satellite Data (1) : Radarsat-2
Imagery Date: 28 April 2017
Resolution: 12 m
Copyright: MacDonald, Dewitter and Associates, Ltd. (2017)
Source: MDA
Satellite Data (2) : Sentinel-1
Imagery Date: 26 April 2017
Resolution: 10 m
Copyright: Copernicus (2017)
Source: ESA
Satellite Data (3) : Radarsat-2
Imagery Date: 17 May 2016
Resolution: 6 m
Copyright: MacDonald, Dewitter and Associates, Ltd. (2017)
Source: MDA
Baseline Data : CNIGS - Open Street Map
Analysis : UNITAR - UNOSAT
Production : UNITAR - UNOSAT