A.K.KAYUMOV, U.A.AMIROV, KH.K.KABUTOV, H.D.NAVRUZSHOEV

ESTIMATION OF GLACIER DEGRADATION OF THE ISHTANSALDA RIVER IN THE SURKHOB RIVER BASIN BY REMOTE METHOD

State Scientific Institution “Center for the Study of Glaciers of the National Academy of Sciences of Tajikistan”

The goal is to study the dynamics of degradation of glaciers in the Ishtansalda river basin for the period from 1994 to 2021. Analysis of the results showed that for the period from 1994 to 2021. the area of glaciers has decreased by 9.065 km², which is 16% of the total area of glaciation.

Compared with the data of the USSR Glacier Catalog of 1971, the total area of glaciers in 1994 increased by 6.2 km², which is 16% of the total area of glaciers.

It was revealed that 32% of glaciers have a south-east exposure and on average for the period 1994-2021, the largest reduction (1.554 km²) was received by glaciers of eastern, southeastern, and northeastern exposure: respectively 0.455 km², 0.251 km² and 0 .27 km². The area of only one glacier, with a southeastern exposure, increased by 0.464 km².

Key words: glacier degradation, area change, climate change, Ishtansaldy river, Surkhob river, remote sensing.