1960-2023年木孜塔格峰冰川变化及其地形因素分析OA

Changes to glaciers in the Ulugh Muztagh region significantly impact water resources in southern Xin-jiang.This study extracted glacier area and terminus changes in Ulugh Muztagh region glaciers using multi-source remote sensing data from 1960 to 2023 and deep learning methods.Differences and driving factors were analyzed from the perspectives of glacier units and topographic features.The results show that(1)Overall,Ulugh Muztagh glaciers retreated from 1960 to 2023,with an average annual area loss of 0.83 km2·a-1 and a terminus re-treat rate of 2.21 m·a-1.(2)In terms of intra-glacier regional differences,the retreat rate of glacier area was higher on south-and east-facing slopes and decreased with increasing elevation and slope.The terminus retreat rate was greater on east-and west-facing slopes(4.42 m·a-1 and 4.01 m·a-1,respectively)than on south-and north-facing slopes(1.63 m·a-1 and 1.45 m·a-1,respectively).(3)The spatial differences in glacier area and terminus changes in the Ulugh Muztagh region are mainly influenced by topography and climate.Sunny slopes receive more solar radiation,accelerating glacier melt,while lower elevations are prone to retreat due to rising temperatures.These findings provide a scientific basis for understanding the mechanisms by which alpine glaciers respond to climate change and offer important references for water resource management and ecological security assessment in southern Xinjiang.