Response of Glacier in Gongga Mountain to Climate Change druing the Last 40Years

The maritime type glaciers in Gongga Mountain are very sensitive to climate change.Landsat TM,MSS and ETM+ data were used to extract the glacier outlines in 1974,1990,2000,and 2010.And it was concluded that the glacial area decreased 30.20km2(11.86%)and the glacial altitude increased 44min the mountain from 1974to 2010.The main reason for glacial retreat was temperature rise.It is estimated that the glacier retreat rate will accelerate.