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海洋性冰川由于所处位置降水量大、气温高,因而对气候变化的响应更为显著.针对藏东南海洋性冰川,通过冰川表面物质平衡监测、GPS冰川末端位置测定、冰川雷达测厚以及地形图与卫星遥感图片相结合的方法,对岗日嘎布地区冰川变化进行了研究.研究发现,从20世纪70年代以来,本区冰川经历了严重的物质损耗与退缩.南坡的阿扎冰川冰舌末端由于表面强烈消融而形成长约6km的表碛覆盖区,冰川末端呈现出加速退缩的态势.北坡的四条冰川物质平衡观测数据显示,2006年5～2007年5月冰川表面出现较大亏损,冰川退缩速度为15～19m.此外,与面积较大的冰川相比,小冰川呈现出更为明显的退缩状态.气温升高造成的本区冰川强烈物质损耗及占本区冰川数量众多的小冰川的“消失”将可能会对本区水资源、生态环境、局地气候及人类可持续发展等造成相当大的影响。
Due to the large precipitation and high temperature, marine glaciers are more responsive to climate change.In view of the southeastern glacier in the southeast, glacier surface material balance monitoring, GPS glacier end position determination, glacier radar thickness measurement and topography The results show that glaciers experienced severe material loss and withdrawal since the 1970s, and the Azha glacier on the southern slope At the tip of the ice tongue, a surface moraine covered area of about 6km long formed due to the strong ablation of the surface, and the glacier end showed an accelerated withdrawal trend. The data of the four glaciers in the northern slope showed that the glacier surface appeared from May 2006 to May 2007 Large loss, the glacier retreat rate of 15 ~ 19m. In addition, compared with the larger glaciers, small glaciers showed a more pronounced state of retreat .Higher glaciers caused by the temperature of the strong material loss and the amount of glaciers in the area The “disappearance” of many small glaciers will likely have a considerable impact on the water resources, ecological environment, local climate and human sustainable development in this area.