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СОВРЕМЕННОЕ ОЛЕДЕНЕНИЕ БИШИНЕЙ-САЛАДАГСКОГО ХРЕБТА (ВОСТОЧНЫЙ КАВКАЗ)

CURRENT STATE OF GLACIERS OF BISHINEY-SALADAG RANGE (THE EASTERN CAUCASUS)

СОВРЕМЕННОЕ ОЛЕДЕНЕНИЕ БИШИНЕЙ-САЛАДАГСКОГО ХРЕБТА (ВОСТОЧНЫЙ КАВКАЗ)

Abstract

The paper focuses on the current state of the Bishiney-Saladag Range glaciers in the Eastern Caucasus and dynamics of their areas change in comparison with the data of the last mid-century. For this investigation the field studies of glacial complexes in the summer seasons of 2016-2019, the information base of the USSR Catalog of Glaciers for 1975, as well as satellite images and remote sensing data have been used. We give an analysis of history of the glaciers study in the region, the glaciation dynamics and the distribution of the number of glaciers in rivers basins. The glaciation in this region, as in the other glacial basins of the Greater Caucasus, is shown to get smaller. During 1965-2019 the area of glaciers decreased by 4.47 km2 that is equal to 55.46. The number of glaciers have decreased by 10 (26.32 of the total) for the same period. The attention is drawn to the disintegration of the largest glaciers, the separation of smaller ones and their reducing in size. There are small glaciers and snowfields (stone glaciers) in the place of melted glaciers. Contraction of the glacial area of the Bishiney-Saladag Range may cause a decrease in the water balance of the Kara-Koisu and Samur rivers and influence the water supply of the population.

В статье рассматривается современное состояние ледников Бишиней-Саладагского хребта на Восточном Кавказе и динамика их площадей по сравнению с данными середины прошлого столетия. Использованы экспедиционные методы полевого изучения гляциальных комплексов в летние сезоны 2016-2019 гг., информационная база Каталога ледников СССР 1975 года, космические снимки и данные дистанционного зондирования. Рассмотрены история изучения ледников региона, динамика оледенения и распределение количества ледников по речным бассейнам. Установлено, что в данном регионе, как и в других ледниковых бассейнах Большого Кавказа, оледенение сокращается. Площадь оледенения за полвека сократилась на 4.47 км2, или на 55.46. Количество ледников за этот же период уменьшилось на 10 (26.32 общего числа). Наблюдается также распад более крупных ледников, отчленение меньших ледников и сокращение их размеров. На месте растаявших ледников остаются малые ледники и снежники (каменные глетчеры). Сокращение площади оледенения Бишиней-Саладагского хребта может в перспективе привести к уменьшению водного баланса рек Каракойсу и Самур и влиять на водообеспеченность населения.

№4(42) (2019)

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Keywords

Бишиней-Саладагский хребет, каменный глетчер, glacier, ледник, деградация оледенения, glaciers degradation, glaciation, Kara-Koisu River, снежник, площадь оледенения, Каракойсу, snowfield, Bishiney-Saladag Range, catalog of glaciers, the Eastern Caucasus, Восточный Кавказ, изменения климата, глетчер, stone glacier, каталог ледников, оледенение, glaciation area, Samur River, climate change, Самур

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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Average
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