Present Glaciers and Their Dynamics in the Arid Parts of the Altai Mountains
AbstractThis research is based on multiyear in-situ observations, analysis of satellite and aerial imagery, meteorological data, and mass balance index calculations. Presently, 659 glaciers cover a total area of 322.1 km2. We identified four favorable, two neutral, and five unfavorable longer intervals of glacier development since 1940. A decelerating of glacial retreat took place in the 1960s and in the late 1980s/early 1990s. The strong decline in glacial mass between 1995 and 2009 resulted in a fast reduction of the glacial area (0.9% year−1 on the northern slope of Tavan Bogd, 1.5% year−1 at Mongun-Taiga), mostly due to the degradation of small glaciers; after 2009, the glacial loss slowed down. Large valley glaciers behaved asynchronously until recently, when their retreat accelerated rapidly reaching in some cases over 40 m∙year−1. Degradation of the accumulation zone and separation of the debris-covered parts of the glaciers are characteristic for the glacial retreat in the region of research. The time of reaction of the fronts of four valley glaciers of Mongun-Taiga and the northern slope of Tavan Bogd on climatic fluctuations is estimated between 11 and 20 years. Over the next decade, high rates of glacial degradation are expected.
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Ganyushkin, D.A.; Chistyakov, K.V.; Volkov, I.V.; Bantcev, D.V.; Kunaeva, E.P.; Terekhov, A.V. Present Glaciers and Their Dynamics in the Arid Parts of the Altai Mountains. Geosciences 2017, 7, 117.
Ganyushkin DA, Chistyakov KV, Volkov IV, Bantcev DV, Kunaeva EP, Terekhov AV. Present Glaciers and Their Dynamics in the Arid Parts of the Altai Mountains. Geosciences. 2017; 7(4):117.Chicago/Turabian Style
Ganyushkin, Dmitry A.; Chistyakov, Kirill V.; Volkov, Ilya V.; Bantcev, Dmitry V.; Kunaeva, Elena P.; Terekhov, Anton V. 2017. "Present Glaciers and Their Dynamics in the Arid Parts of the Altai Mountains." Geosciences 7, no. 4: 117.
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