UNITAR-UNOSAT

Mon, 9 Jun 2008 20:27:53 GMT

Product ID: 1234 - English Published: 9 Jun, 2008 GLIDE: EQ-2008-000062-CHN FootPrint (Lat x Long, WSG84 Geographic, decimal degrees) TopLeft: 31.921 x 104.225 BottomRight: 31.797 x 104.519
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This map presents a satellite-based water and damage assessment for the affected towns and villages along the flooded Jianjiang River valley, resulting from the earthquake-created lake and landslides. This assessment has been made with FORMOSAT-2 satellite imagery acquired from 3 to 8 June 2008 at a spatial resolution of 2m. Pre-disaster imagery recorded on 14 May 2006 was also used. This is an initial damage assessment & has not yet been validated in the field. Map scale for A3: 1:60,000; Projection : UTM, Zone 48 North; Datum :WGS 1984. - Water levels are visibly rising from 5 to 8 June; - Some water movement through new drainage channel; - Two villages are submerged under the lake; -8 pedestrian bridges and 3 main bridges are destroyed; - Approximately 17km of road along the Jianjiang River is submerged under water or destroyed by landslides; - A significant threat exists from a lake-borne tsunami, generated by new landslides into Tangjiashan lake.
Satellite Data: Formosat-2 Resolution : 2.0m Date Series : 3 - 8 June 08 & 14 May 06 Image Copyright : NSPO (2008) Image Analysis : UNOSAT Elevation Data : SRTM-NASA GIS Data : UNOSAT Map Production : UNOSAT (9 June 2008)

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