a
b
c
d
Fig. 30. Contours of glaciers No. 229 (Kvishi) − No. 234 (Dolra) and No. 235 (Goguati): a − according to the topographic map, b − According to the Landsat 7 ETM+ sensor 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.
