Abstract
Based on the comprehensive analysis of ICESat/GLAS14 data from 2003 to 2009 and CryoSat-2/L2I data from 2010 to 2016 in summer season. This paper revealed the elevation changes of mountain glaciers in small watershed scale in southeastern Qinghai-Tibet Plateau by using outliner elevation of footprints, spatial matching analysis of DEM and elevation trends simulation methods. The result showed, the data of effective footprints of ICESat is significantly higher than CryoSat data on mountain glaciers. Glaciers in the study area has been regressed significantly from 2003 to 2016, with the average regression rate in the study area is -1.05±0.53ma-1, and a correlation coefficient of 0.72. Compared with the result of other similar studies in southeastern Tibet, the mountain glacier regression rate is credible. Meanwhile, the feasibility of mountain glacier elevation change monitoring in small watershed by CryoSat-2 data has been proven.
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