Fig. 5. Contours of glaciers No. 31 − 37 (Samkh. Sopruju), No. 38 − 40 (Adeba): a − on a topographic map, b − according to the image of the Landsat 7 ETM+ sensor on August 31, 2010, c − according to the image of the Landsat 8 OLI sensor on September 5, 2015, d − according to the image of the Landsat 8 OLI TIRS sensor on September 11, 2020.