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Update 1: Rising Flood Waters Along Chobe River, Caprivi Region, Namibia
31 Mar 2009
 Source: UNOSAT

Background

•  South East Asia Monsoon

•  Floods

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Namibia - This map illustrates satellite-detected increase in flood water extent along the Chobe River between the dates 17, 20, 25 & 29 March 2009 in the Caprivi Region, Namibia. Flooded areas are sorted into 5 classes by date: Purple areas represent the spread of flood waters from 25 to 29 March; Red areas the spread of flood waters from 20 to 25 March; orange areas the spread from 17 to 20 March; and yellow areas the extent of flood waters on 17 March 2009; Blue areas represent pre-flood water from multiple dates. Flood analysis was made using DMC, Radarsat-2 & ENVISAT-ASAR data. Because of the difference in satellite sensors, there is some degree of uncertainty about the exact level of flood extent change over time. This flood detection is a preliminary analysis & has not yet been validated in the field. Map scale for A3: 1:375,000; Projection : UTM Zone 34 South WGS 1984.
Satellite Imagery : DMC (UK)
Imagery Dates : 29 March 2009
Resolution : 32m
Source : DMC International Imaging Ltd.
Radar Data (1: RADARSAT-2
Radar Dates : 25 March 2009
Copyright: RADARSAT-2 © MDA 2009
Credit: Canadian Space Agency
Radar Data (2: ENVISAT ASAR (WSM)
Radar Resolution : 150 m
Radar Dates : 17-20 March 2009
Copyright : ESA 2009
Source: ESA-Cat1 (Respond Project)
Road & Town Data : Namibia Directorate Survey & Mapping
Flood Analysis : UNOSAT
GIS Data : USGS, NGA, UNOSAT, SALB
Spot Heights : SRTM
Pre-flood Water: Global data (ESRI 2007)
Map Production : UNOSAT (31 March 2009)



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Source:UNOSAT
Country:Namibia
Link to high-Res:File size: 3.858 MB
Link to mid-Res:File size: 1.035 MB
KML: Link to KML file


Background information

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Facts & figures
Namibia

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