Product ID: 1700 - English
Published: 5 Dec, 2012
GLIDE: FL-2012-1203-NER
FootPrint (Lat x Long, WSG84 Geographic, decimal degrees)
TopLeft: 13.4385 x 12.2238
BottomRight: 13.0054 x 12.8372

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This map illustrates satellite-detected probable extent of flood water evolution in the City of Diffa and surrounding areas in Niger as of 02 December, 2012. For extracting the initial flood water extent a MODIS Terra image of 11 November 2012 was used and for extracting the recent flood water extent a MODIS Aqua Image of 02 December, 2012 was used. Please note that the exact limit of the flood waters is uncertain because of the relatively low spatial resolution of the satellite sensors used for this analysis, Detected water bodies likely reflect an underestimation of all flood-affected areas within the map extent. This analysis has not yet been validated in the field. Please send ground feedback to UNITAR / UNOSAT.
Satellite Data (1): MODIS Aqua
Imagery Date: 02 Dec 2012
Resolution: 250m
Copyright: NASA
Source: NASA
Satellite Data (2): MODIS Terra
Imagery Date: 11 Nov 2012
Copyright: NASA
Source: NASA

Coordinate System: WGS 1984 UTM Zone 33N
Map scale for A3: 1:200,000
Road Data : Google Map Maker / OSM / ESRI
Hydrology : Google Map Maker
Other Data: USGS, UNCS, NASA, NGA, ESRI
Analysis : UNITAR / UNOSAT
Production: UNITAR / UNOSAT
Analysis conducted with ArcGIS v10.1