关键词: 2004-06-22滑坡, 卫星监测, 滑前危岩, 滑坡活动, 西藏帕里河

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