Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan
We conducted 2 yr (2005–2007) of in situ meteorological and glaciological observations on the Gregoriev Glacier, a flat-top glacier within the Inner Tien Shan, Kyrgyzstan. Relative carrier-phase GPS surveys reveal a vertical lowering at the summit of the glacier. Based on snow density data and an en...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:d8d9d10ddd01459c84687645ae7c7de2 2023-05-15T18:32:20+02:00 Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan K. Fujita N. Takeuchi S. A. Nikitin A. B. Surazakov S. Okamoto V. B. Aizen J. Kubota 2011-07-01 https://doi.org/10.5194/tc-5-539-2011 http://www.the-cryosphere.net/5/539/2011/tc-5-539-2011.pdf https://doaj.org/article/d8d9d10ddd01459c84687645ae7c7de2 en eng Copernicus Publications doi:10.5194/tc-5-539-2011 1994-0416 1994-0424 http://www.the-cryosphere.net/5/539/2011/tc-5-539-2011.pdf https://doaj.org/article/d8d9d10ddd01459c84687645ae7c7de2 undefined The Cryosphere, Vol 5, Iss 3, Pp 539-549 (2011) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2011 fttriple https://doi.org/10.5194/tc-5-539-2011 2023-01-22T17:50:06Z We conducted 2 yr (2005–2007) of in situ meteorological and glaciological observations on the Gregoriev Glacier, a flat-top glacier within the Inner Tien Shan, Kyrgyzstan. Relative carrier-phase GPS surveys reveal a vertical lowering at the summit of the glacier. Based on snow density data and an energy-mass balance model, we estimate that the annual precipitation and summer mean temperature required to maintain the glacier in the current state are 289 mm and −3.8 °C at the glacier summit (4600 m a.s.l.), respectively. The good agreement between dynamically derived precipitation and the long-term observed precipitation at a nearby station in the Tien Shan (296 mm at 3614 m a.s.l. for the period 1930–2002) suggests that the glacier has been in a near steady-state in terms of mass supply. The glacier mass-balance, reconstructed based on meteorological data from the Tien Shan station for the past 80 yr, explains the observed fluctuations in glacier extent, particularly the negative mass balance in the 1990s. Article in Journal/Newspaper The Cryosphere Unknown Flat Top ENVELOPE(-137.387,-137.387,63.225,63.225) The Cryosphere 5 3 539 549 |
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English |
topic |
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geo envir K. Fujita N. Takeuchi S. A. Nikitin A. B. Surazakov S. Okamoto V. B. Aizen J. Kubota Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan |
topic_facet |
geo envir |
description |
We conducted 2 yr (2005–2007) of in situ meteorological and glaciological observations on the Gregoriev Glacier, a flat-top glacier within the Inner Tien Shan, Kyrgyzstan. Relative carrier-phase GPS surveys reveal a vertical lowering at the summit of the glacier. Based on snow density data and an energy-mass balance model, we estimate that the annual precipitation and summer mean temperature required to maintain the glacier in the current state are 289 mm and −3.8 °C at the glacier summit (4600 m a.s.l.), respectively. The good agreement between dynamically derived precipitation and the long-term observed precipitation at a nearby station in the Tien Shan (296 mm at 3614 m a.s.l. for the period 1930–2002) suggests that the glacier has been in a near steady-state in terms of mass supply. The glacier mass-balance, reconstructed based on meteorological data from the Tien Shan station for the past 80 yr, explains the observed fluctuations in glacier extent, particularly the negative mass balance in the 1990s. |
format |
Article in Journal/Newspaper |
author |
K. Fujita N. Takeuchi S. A. Nikitin A. B. Surazakov S. Okamoto V. B. Aizen J. Kubota |
author_facet |
K. Fujita N. Takeuchi S. A. Nikitin A. B. Surazakov S. Okamoto V. B. Aizen J. Kubota |
author_sort |
K. Fujita |
title |
Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan |
title_short |
Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan |
title_full |
Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan |
title_fullStr |
Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan |
title_full_unstemmed |
Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan |
title_sort |
favorable climatic regime for maintaining the present-day geometry of the gregoriev glacier, inner tien shan |
publisher |
Copernicus Publications |
publishDate |
2011 |
url |
https://doi.org/10.5194/tc-5-539-2011 http://www.the-cryosphere.net/5/539/2011/tc-5-539-2011.pdf https://doaj.org/article/d8d9d10ddd01459c84687645ae7c7de2 |
long_lat |
ENVELOPE(-137.387,-137.387,63.225,63.225) |
geographic |
Flat Top |
geographic_facet |
Flat Top |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 5, Iss 3, Pp 539-549 (2011) |
op_relation |
doi:10.5194/tc-5-539-2011 1994-0416 1994-0424 http://www.the-cryosphere.net/5/539/2011/tc-5-539-2011.pdf https://doaj.org/article/d8d9d10ddd01459c84687645ae7c7de2 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-5-539-2011 |
container_title |
The Cryosphere |
container_volume |
5 |
container_issue |
3 |
container_start_page |
539 |
op_container_end_page |
549 |
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1766216444696068096 |