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Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan

التفاصيل البيبلوغرافية
العنوان: Favorable climatic regime for maintaining the present-day geometry of the Gregoriev Glacier, Inner Tien Shan
المؤلفون: K. Fujita, N. Takeuchi, S. A. Nikitin, A. B. Surazakov, S. Okamoto, V. B. Aizen, J. Kubota
المصدر: The Cryosphere, Vol 5, Iss 3, Pp 539-549 (2011)
بيانات النشر: Copernicus Publications, 2011.
سنة النشر: 2011
المجموعة: LCC:Environmental sciences
LCC:Geology
مصطلحات موضوعية: Environmental sciences, GE1-350, Geology, QE1-996.5
الوصف: 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.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1994-0416
1994-0424
Relation: http://www.the-cryosphere.net/5/539/2011/tc-5-539-2011.pdf; https://doaj.org/toc/1994-0416; https://doaj.org/toc/1994-0424
DOI: 10.5194/tc-5-539-2011
URL الوصول: https://doaj.org/article/d8d9d10ddd01459c84687645ae7c7de2
رقم الأكسشن: edsdoj.8d9d10ddd01459c84687645ae7c7de2
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:19940416
19940424
DOI:10.5194/tc-5-539-2011