Flood Water Evolution Over Diffa Town and Surrounding areas, Niger
Wed, 5 Dec 2012 20:23:53 GMT| Product ID: 1700 - English Published: 5 Dec, 2012 GLIDE: FL-2012-1203-NER FootPrint (Lat x Long, WSG84 Geographic, decimal degrees) TopLeft: 12.2238 x 13.4385 BottomRight: 12.8372 x 13.0054 |  |
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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 | |
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