Abstract
The results of radar studies of the IGAN glacier carried out in 2019 and 2021 are presented in the paper. Measurements of the thickness of the snow cover and ice were carried out using the PICOR-LED GPR (1600 MHz) and VIRL-7 (20 MHz), respectively. Studies have revealed significant winter snow accumulation on the glacier and its stable spatial distribution, and also showed a significant ice thickness (up to 106 m) and the polythermal structure of the glacier. Electrotomography was used to monitor the central part of the glacial moraine. Two-dimensional geoelectric sections and a three-dimensional geoelectric model of the internal structure of the moraine are constructed. The size of the rock-ice core (high-resistance rocks) increases towards the center of the moraine, nevertheless, there is an active degradation of frozen material in the marginal parts of the moraine.
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