Two new glacier systems in northeastern Eurasia

Kotlyakov, V. M.; Khromova, T.; Zverkova, N. M.; Chernova, L. P.; Nosenko, G.

doi:10.1134/s1028334x11030056

Cited by 7 publications

(2 citation statements)

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“…Later 182 glaciers with total area 61.1 km 2 , which were not mentioned among glacier systems of the Koryak, Chukchi and Kolyma highlands presented in the UGI, were added. These glaciers were discovered, visited and investigated in the 1980s-1990s by R V Sedov, a researcher from Magadan (Kotlyakov et al 2011). Now the UGI covers 25 glacier systems (figure 1, table 1).…”

Section: Methodsmentioning

confidence: 99%

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Glacier area changes in Northern Eurasia

Khromova

Nosenko

Kutuzov

et al. 2014

Environ. Res. Lett.

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Glaciers are widely recognized as key indicators of climate change. Recent evidence suggests an acceleration of glacier mass loss in several key mountain regions. Glacier recession implies landscape changes in the glacial zone, the origin of new lakes and activation of natural disaster processes, catastrophic mudflows, ice avalanches, outburst floods, etc. The absence or inadequacy of such information results in financial and human losses. A more comprehensive evaluation of glacier changes is imperative to assess ice contributions to global sea level rise and the future of water resources from glacial basins. One of the urgent steps is a full inventory of all ice bodies and their changes. The first estimation of glacier state and glacier distribution on the territory of the former Soviet Union has been done in the USSR Glacier Inventory (UGI) published in 1965-1982. The UGI is based on topographic maps and air photos and reflects the status of the glaciers in the 1940s-1970s. There is information about 28 884 glaciers with an area of 7830.75 km 2 in the inventory. It covers 25 glacier systems in Northern Eurasia. In the 1980s the UGI has been transformed into digital form as a part of the World Glacier Inventory (WGI). Recent satellite data provide a unique opportunity to look again at these glaciers and to evaluate changes in glacier extent for the second part of the 20th century. About 15 000 glacier outlines for the Caucasus, Polar Urals, Pamir Alay, Tien Shan, Altai, Kamchatka and Russian Arctic have been derived from ASTER and Landsat imagery and can be used for glacier change evaluation. Results of the analysis indicate the steady trend in glacier shrinkage in all mountain regions for the second part of the 20th century. Glacier area loss for the studied regions varies from 13% (Tien Shan) to 22.3% (Polar Urals). The common driver, most likely, is an increase in summer air temperature. There is also a very large variability in the degree of individual glacier degradation, very much depending on the morphology and local meteorological conditions.

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Section: Methodsmentioning

confidence: 99%

“…Glacier systems according to the electronic version of the glacier inventory of USSR (2010 (UGI) (note: data for glacier systems 1-21 and 23 are given according to the UGI for the period 1940-1970; data for glacier systems 22, 24 and 25 are given by R V Sedov for the period1980 -1990(Kotlyakov et al 2011). (www.webgeo.ru/index.php?r=47).…”

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confidence: 99%