Glacier reaction to temperature and precipitation change in Central Caucasus, 2001–2010

Nosenko, G.; Khromova, T.; Rototaeva, O.; Шахгеданова, М. В.

doi:10.15356/2076-6734-2013-1-26-33

Cited by 9 publications

(11 citation statements)

References 3 publications

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“…Global climate change has had a dramatic impact on mountain glaciers around the world, and these glaciers in the Caucasus are no exception. The dominant trend is that Caucasian glaciers are slowly adapting to seasonal changes in total precipitation and higher air temperatures, showing a negative mass balance [1]. Similar situation is observed in the other mountains [2].…”

Section: Introductionsupporting

confidence: 56%

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Causes and consequences of the streambed restructuring of the Koiavgan Creek (North Caucasus, Russia)

et al. 2020

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The restructuring of the lower reach of the Koiavgan Creek channel (the right bank tributary of the Djankuat River) occurred on 1 July 2015 after continuous rainfall with a total precipitation amount of 227 mm. This led to the breakthrough of the Djankuat Glacier lateral moraine. The lower reach of the creek channel was initially formed at the junction of the bedrock slopes and lateral moraine and descended sharply at the end of the moraine to a wide glacial valley of the Djankuat River. The part of the channel from the end of the moraine line to the creek’s outlet in the bottom of the glacial valley had a height difference of 125 m at a distance of about 250 m. The active landslide has been recorded in the place of future breakthrough based on interpretation of 2014 summer satellite image. The linear erosion began to form on the wall of the disruption. Thermokarst processes probably also contributed to this breakthrough. The total volume of sediment eroded during the breakthrough and for four years after is 156 500 m3. The breakthrough has formed the largest sediment cone 300 meters wide and more than 200 m long in the bottom of the Djankuat River valley.

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Section: Introductionsupporting

confidence: 56%

“…1), which flow into the Djankuat River. According to meteorological observations [7] the average daily precipitation (in water equivalent) is 11.2 mm•day 1 with a maximum of 97.2 mm•day 1 . The most part of precipitation falls in the cold season in the form of snow.…”

Section: Study Sitementioning

confidence: 99%

Causes and consequences of the streambed restructuring of the Koiavgan Creek (North Caucasus, Russia)

et al. 2020

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“…After a short cooler and snowier interval in 2002-2005, the climatic conditions in the Caucasus again became unfavorable for the glaciers. At the same time, the average rates of retreat of the glacial fronts for 28 selected valley glaciers in the 1987-2010 period did not exceed 20 m·year −1 [78]. The decrease in the glacial area was also relatively slow: 4.9% for the glaciation of Elbrus and 4.7 for the Greater Caucasus in general in the 1999-2012 period [79].…”

mentioning

confidence: 92%

Present Glaciers and Their Dynamics in the Arid Parts of the Altai Mountains

et al. 2017

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This 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 km 2 . 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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“…The cryosphere in the montane regions of Northern Eurasia is represented by three components: (i) seasonal and perennial snow pack; (ii) glaciers; and (iii) permafrost. The cryosphere retreat has a continent-wide spatial scale with temporal scales that vary from the century to millennia for glaciers and permafrost, to seasonal for snow cover extent (Shahgedanova et al 2010(Shahgedanova et al , 2012(Shahgedanova et al , 2014Aizen et al 2007;Bulygina et al 2011;Gutman and Reissell 2011;Sorg et al 2012;Chen et al 2013;Groisman and Gutman 2013;Nosenko et al 2013;Khromova et al 2014;Blunden and Arndt 2015;Farinotti et al 2015;Syromyatina et al 2014Syromyatina et al , 2015Fausto et al 2016).…”

Section: Research Focus 3: Retreat Of the Cryospherementioning

confidence: 99%

Northern Eurasia Future Initiative (NEFI): facing the challenges and pathways of global change in the twenty-first century

Groisman

Shugart

Kicklighter

et al. 2017

Prog Earth Planet Sci

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During the past several decades, the Earth system has changed significantly, especially across Northern Eurasia. Changes in the socioeconomic conditions of the larger countries in the region have also resulted in a variety of regional environmental changes that can have global consequences. The Northern Eurasia Future Initiative (NEFI) has been designed as an essential continuation of the Northern Eurasia Earth Science Partnership Initiative (NEESPI), which was launched in 2004. NEESPI sought to elucidate all aspects of ongoing environmental change, to inform societies and, thus, to better prepare societies for future developments. A key principle of NEFI is that these developments must now be secured through science-based strategies codesigned with regional decision-makers to lead their societies to prosperity in the face of environmental and institutional challenges. NEESPI scientific research, data, and models have created a solid knowledge base to support the NEFI program. This paper presents the NEFI research vision consensus based on that knowledge. It provides the reader with samples of recent accomplishments in regional studies and formulates new NEFI science questions. To address these questions, nine research foci are identified and their selections are briefly justified. These foci include warming of the Arctic; changing frequency, pattern, and intensity of extreme and inclement environmental conditions; retreat of the cryosphere; changes in terrestrial water cycles; changes in the biosphere; pressures on land use; changes in infrastructure; societal actions in response to environmental change; and quantification of Northern Eurasia's role in the global Earth system. Powerful feedbacks between the Earth and human systems in Northern Eurasia (e.g., mega-fires, droughts, depletion of the cryosphere essential for water supply, retreat of sea ice) result from past and current human activities (e.g., large-scale water withdrawals, land use, and governance change) and potentially restrict or provide new opportunities for future human activities. Therefore, we propose that integrated assessment models are needed as the final stage of global change assessment. The overarching goal of this NEFI modeling effort will enable evaluation

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Glacier reaction to temperature and precipitation change in Central Caucasus, 2001–2010

Cited by 9 publications

References 3 publications

Causes and consequences of the streambed restructuring of the Koiavgan Creek (North Caucasus, Russia)

Causes and consequences of the streambed restructuring of the Koiavgan Creek (North Caucasus, Russia)

Present Glaciers and Their Dynamics in the Arid Parts of the Altai Mountains

Northern Eurasia Future Initiative (NEFI): facing the challenges and pathways of global change in the twenty-first century

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