a
b
c
d
Fig. 15. Contours of glaciers No. 108 − 110 (northern Gvagva), No. 111, No. 112: a − on a topographic map, b − according to the Landsat 5 TM sensor image of August 31, 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.
