Geoscience ›› 2008, Vol. 22 ›› Issue (2): 281-287.
• Engineering Geology and Environmental Geology • Previous Articles Next Articles
WANG Zhi-hua,XU Qi-de
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Abstract:
2004-06-22 Landslide is located at the middle part of the Pali River Basin which is in the western end of Tibet,China, and is near the China-India boundary. Taking multi-temporal high resolution satellite data as the RS information and DEM derived from Orbview as the geographical control,digital landslide technique has been adopted to study and monitor 2004-06-22 Landslide activities. Satellite image interpretation reveals that before landslide occurred the part of slope had already been the dangerous rocks before sliding,surrounding by fractures and nearly separating with slope, 2004-06-22 Landslide is considered as a high-speed slide activity of bedrock bedding, which is calculated as 63.7×104 m3 in volume by the use of RS+GIS.Satellite monitoring shows that each part of the landslide has not changed during 35 months from Sep.,2004 to Jul.,2007, and there is no any new landslide activity occurring during this period. 2004-06-22 Landslide is a natural gravity erosion process in the high mountain narrow canyon and intensive recent tectonic activity area, it has fully released energy, so apart from some unloading and adjusting activities surrounding the landslide, other landslides would not occur nowadays.
Key words: 2004-06-22 Landslide, satellite monitoring, dangerous rock before sliding, landslide activity, Pali River,Tibet
CLC Number:
P627
P642.22
WANG Zhi-hua,XU Qi-de. Satellite Monitoring for 2004-06-22 Landslide in the Pali River,Tibet[J]. Geoscience, 2008, 22(2): 281-287.
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