a
b
c
d
Fig. 8. Glacier No. 61 (Shkhapizga): a − on a topographic map, b − according to the Landsat 5 TM image of August 31, 2010, c − according to the Landsat 8 OLI TIRS sensor image of September 5, 2015, d − according to the Landsat 8 OLI TIRS sensor image of September 11, 2020.
