Flood Waters Over Affected Areas Along the Zambezi River, Mozambique

Fri, 25 Feb 2011 14:41:53 GMT
 International Charter Space and Major Disasters
Product ID: 1536 - English
Published: 25 Feb, 2011
GLIDE: FL-2011-000013-MOZ
FootPrint (Lat x Long, WSG84 Geographic, decimal degrees)
TopLeft: -18 x 35.6
BottomRight: -18.3 x 36

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This map illustrates satellite-detected flood waters over the affected provinces of Sofala & Zambezia along the Zambezi River, Mozambique. Flood waters were identified through an analysis of ENVISAT ASAR satellite data recorded on 17 February 2011 with a medium degree of confidence. The pre-flood water extent was extracted from ENVISAT ASAR data collected on 19 February 2004. This flood detection is a preliminary analysis & has not yet been validated in the field. It is possible that flood waters have been significantly underestimated in certain vegetated areas along the Limpopo and Incomati rivers because of water signature confusion in the radar data. Flood waters shown in this map thus likely represent minimum estimates. The rainfall data was derived from the Tropical Rainfall Monitoring Mission (TRMM) precipitation dataset at a spatial resolution of approximately 25km for this region. It is possible that precipitation levels may have been underestimated for local areas, and is not a substitute for ground station measurements.
Crisis Satellite Data: ENVISAT ASAR IMP
Resolution: 25m
Date Series: 17 Feb. 2011
Pre Crisis Satellite Data: ENVISAT ASAR IMP
Resolution: 25m
Date Series: 19 Feb. 2004
Flood Analysis: UNOSAT
Rainfall Data: TRMM (NASA)
Resolution: 0.25 deg
Date Series: 10 Jan - 17 Feb 2011
Hydrology data: Hydrosheds (USGS),ESRI
Transport Data: Google Map Maker
Copyright: © 2011 improved with GoogleMapMaker
Other GIS Data: NGA, USGS
Map Production: UNOSAT (25 Feb. 2011)
Projection: UTM, Zone 36 South
Datum: WGS 1984
Produced using ArcGIS