Product ID: 1657 - English
Published: 30 May, 2012
GLIDE: DR-2011-000097-HOA

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This map illustrates changes in IDP settlement densities as visible in satellite imagery acquired 2 April 2012 and compared to imagery from 25 July 2011. IDP settlement areas defined by field staff were reviewed to determine changes in shelter density between these two dates. Of the 740 settlement areas reviewed, 70 had minor reductions in shelters, 147 had major reductions, 251 showed no change, and 2 indicated minor increases. Additionally, 270 settlement areas were unassessed due primarily to cloud cover or lack of imagery and areas outside settlements were not reviewed. This is a preliminary analysis & has not yet been validated in the field; road data is incomplete due to gaps in the source data. Please send feedback to UNITAR / UNOSAT.
Satellite Data (1): GeoEye-1
Imagery Dates: 2 April 2012
Resolution: 50 cm
Copyright: GeoEye
Source: NextView
Satellite Data (2): WorldView-2
Imagery Date: 25 July 2011
Copyright: DigitalGlobe
Source: European Space Imaging
IDP Settlement Data: OCHA, UNHCR, and Metria
Road Data : OSM / Google Map Maker / ESRI
Analysis : UNITAR / UNOSAT
Production: UNITAR / UNOSAT
Analysis conducted with ArcGIS v10