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DOI: 10.1016/j.gloplacha.2012.07.010
论文题名:
Glacier changes in the Big Naryn basin, Central Tian Shan
作者: Hagg W.; Mayer C.; Lambrecht A.; Kriegel D.; Azizov E.
刊名: Global and Planetary Change
ISSN: 0921-8213
出版年: 2013
卷: 110
起始页码: 40
结束页码: 50
语种: 英语
英文关键词: Big Naryn ; Excess discharge ; Glacier area change ; Glacier inventory ; Glacier volume change ; GPR measurements ; Tian Shan ; Volume-area scaling
Scopus关键词: Area-changes ; Big Naryn ; Glacier inventory ; Glacier volume change ; Tian Shan ; Volume-area scaling ; Ground penetrating radar systems ; Satellite imagery ; discharge ; glacier dynamics ; glacier retreat ; ground penetrating radar ; mountain region ; river basin ; runoff ; satellite imagery ; twentieth century ; Big Naryn Basin ; Kyrgyzstan ; Tien Shan
英文摘要: A glacier inventory referring to the year 2007 was created for the Big Naryn basin based on satellite imagery. The 507 glaciers had a total area of 471. km2. Compared to the Soviet glacier inventory based on data from the mid 20th century, the total glacier area decreased by 23.4%. The shrinkage varies from 14% to 42% between individual mountain ranges. We discuss the possible causes for this considerable variation by analyzing and interpreting topographic parameters and differences between seven sub-regions. On three glaciers, ice thickness was derived by ground penetrating radar (GPR) measurements on the glacier tongues and by surface slope using a simplified ice mechanical approach on the upper parts. We estimate the total ice volume of the basin for both inventories using volume-area scaling. Our results show a current glacier volume of 26.0-33.3. km3. A total of 6.6-8.4. km3 (20%) have been lost since the mid 20th century. The water equivalent of 5.9-7.6. km3 was transformed into excess discharge and contributed to at least 7.3-9.2% of total runoff in the considered period. © 2012 Elsevier B.V.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84888020166&doi=10.1016%2fj.gloplacha.2012.07.010&partnerID=40&md5=cf3e060315463bc172d8b5ee26a03a0c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11119
Appears in Collections:全球变化的国际研究计划

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作者单位: Department of Geography, Ludwig-Maximilians-University, Luisenstr. 37, 80333 Munich, Germany

Recommended Citation:
Hagg W.,Mayer C.,Lambrecht A.,et al. Glacier changes in the Big Naryn basin, Central Tian Shan[J]. Global and Planetary Change,2013-01-01,110.
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