GLIDE: CE-2008-000029-TCD
This map presents a satellite-based estimation of the number of civilians leaving the capital city of N´Djamena towards Kousseri, Cameroon on Monday, 4 February 2008. This estimate is based on an crowd density analysis of a WorldView-1 satellite image acquired at a spatial resolution of 50 cm. The resulting estimate of 15,000 people represents only pedestrians at two bridge locations at approximately 10:30 UTC, and does not reflect those who crossed later in the day. This is a preliminary estimate, and has not yet been validated in the field.
Map Scale for A3: 1:60,000; Projection : UTM Zone 33 North; Datum: WGS 1984
Source(s):
Satellite Data: WorldView-1
Image Resolution: 50 cm (Panchromatic)
Image Date: 4 February 2008
Image Time: Approximately 10:30 UTC
Image Copyright : Digital Globe 2008
Population Analysis: UNOSAT
GIS Data: USGS, NGA, UNJLC, SALB
Road Data : Vectorized from Google EarthProduct
FOOTPRINT (LAT x LONG, WSG84 Geographic, decimal degrees)
TopLeft: 12.154504 x 14.968576
BottomRight: 12.047021 x 15.129635
Map Production : UNOSAT (27 February 2008)
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