Fig. 13. Contours of glaciers No. 96 − 100: a − on a topographic map, b − according to the Landsat 7 ETM+ sensor image of September 11, 2010, c − according to the Landsat 7 ETM+ sensor image of September 6, 2015, d − according to the Landsat 8 OLI TIRS sensor image of September 11, 2020.