a
b
c
d
Fig. 19. Contours of glaciers No. 383 and No. 384: a ā according to the topographic map, b ā according to the Landsat 7 ETM+ sensor image of August 31, 2010, cā according to the Landsat 8 OLI TIRS sensor image of September 5, 2015, d ā according to the Landsat 8 OLI TIRS sensor image of September 11, 2020.
