Based on the numeric remote sensing image data(MSS data in 1973,TM data in 1992,ETM + data in 2001,TM data in 2007)and numeric terrain model,combined with the first glacier inventories data,the glacier distribution range in Dongkemadi Region of Tanggula Mountain in different years were extracted by using GIS technology and remote sensing image processing technology. The results showed that the glaciers area in the study area had decreased by 0. 84% ,1. 77% ,4. 24% ,3. 31% from 1969 to 1976,1976 to 1992,1992...
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