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利用探地雷达对老虎沟12号冰川进行了多个剖面观测,分析了雷达图像反映的冰川内部特征。结果表明通过分析雷达图像中的纹理和位置,雷达波形的振幅和极性变化等信息能够有效的辅助识别冰川内部介质的变化界面位置和估算其规模。在老虎沟12号冰川的部分剖面内部存在冰内空洞、冰内融水空洞、冰下裂隙、冰下河等地貌形态,在冰岩界面和冰川边缘存在规模不等的碎屑层。这说明即使在典型的大陆型冰川,冰川内部结构也可能较为复杂,在冰岩界面处可能存在较强的冰川作用。
Using GPR, a number of profile observations of Laohugou 12 glacier were conducted, and the internal characteristics of the glacier reflected by the radar image were analyzed. The results show that by analyzing the texture and position of the radar image, the amplitude and polarity of the radar waveform and other information can effectively identify the change of the interface position and the size of the medium in the glacier. There are ice hollows inside the partial profile of No 12 glacier in Laohugou, melt water cavity in ice, fractures under ice, and river under ice. There are scale layers at different ice-rock interfaces and glacial margins. This shows that even in the typical continental glacier, the internal structure of the glacier may be more complicated, and there may be a strong glacier effect at the ice-rock interface.