Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.gloplacha.2014.11.014 |
Region-wide glacier mass budgets and area changes for the Central Tien Shan between similar to 1975 and 1999 using Hexagon KH-9 imagery | |
Pieczonka, Tino1; Bolch, Tobias1,2 | |
通讯作者 | Pieczonka, Tino |
来源期刊 | GLOBAL AND PLANETARY CHANGE
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ISSN | 0921-8181 |
EISSN | 1872-6364 |
出版年 | 2015 |
卷号 | 128页码:1-13 |
英文摘要 | The meltwater released by the glaciers in the Central Tien Shan feeds in particular the Tarim River which is the main artery for the oases at the northern margin of the Taklamakan desert. The correct assessment of the contribution of the glaciers’ meltwater to the total runoff is hampered by the lack of long-term measurements of glacier mass budgets. Digital terrain models (DTMs) for the different regions in the Central Tien Shan were generated based on similar to 1975 KH-9 Hexagon imagery and compared to the SRTM3 DTM acquired in February 2000. Moreover, glacier area changes for the period similar to 1975-2008 have been measured by means of multi-temporal optical satellite imagery. The geodetic mass budget estimates for a glacierized area of 5000 km(2) revealed increasing mass loss east to west and from the inner to the outer ranges. Highest mass loss accompanied by the most pronounced glacier retreat was found for the Ak-Shirak massif with a region-wide mass balance of -0.51 +/- 0.36 m w.e. a(-1) and a rate of area change of -0.27 +/- 0.15% a(-1), whilst moderate mass loss was observed for the Inylchek (0.20 +/- 0.44 m w.e. a-1) and Tomur area (0.33 +/- 0.30 m w.e. a(-1)) despite partly debris cover. These latter regions also revealed the lowest glacier shrinkage within the entire Central Tien Shan. The total glacier mass loss of 035 034 m w.e. a(-1) is, however, within the global average whilst the glacier area shrinkage is comparatively low. On average, the investigated glacierized area of similar to 6600 km(2) shrank by 0.11 +/- 0.15% a(-1) only. We could also identify several surge-type glaciers. The results are consistent with in-situ mass balance measurements for Karabatkak Glacier and previously published results of the Ak-Shirak range proving the suitability of declassified imagery for glacier change investigations. The contribution to the runoff of Aksu River, the largest tributary of the Tarim River, due to glacier imbalance has been determined at similar to 20% for the 1975-2000 period. (C) 2014 Published by Elsevier B.V. |
英文关键词 | change assessment geodetic glacier mass budget glacier area change Central Tien Shan KH-9 Hexagon Sary-Djaz/Aksu |
类型 | Article |
语种 | 英语 |
国家 | Germany ; Switzerland |
收录类别 | SCI-E |
WOS记录号 | WOS:000353852700001 |
WOS关键词 | CLIMATE-CHANGE ; HISTORICAL DATA ; VOLUME CHANGE ; CENTRAL-ASIA ; NARYN BASIN ; RIVER-BASIN ; THICKNESS ; ACCURACY ; MOUNTAIN ; HIMALAYA |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/187574 |
作者单位 | 1.Tech Univ Dresden, Inst Cartog, D-01069 Dresden, Germany; 2.Univ Zurich, Dept Geog, CH-8057 Zurich, Switzerland |
推荐引用方式 GB/T 7714 | Pieczonka, Tino,Bolch, Tobias. Region-wide glacier mass budgets and area changes for the Central Tien Shan between similar to 1975 and 1999 using Hexagon KH-9 imagery[J],2015,128:1-13. |
APA | Pieczonka, Tino,&Bolch, Tobias.(2015).Region-wide glacier mass budgets and area changes for the Central Tien Shan between similar to 1975 and 1999 using Hexagon KH-9 imagery.GLOBAL AND PLANETARY CHANGE,128,1-13. |
MLA | Pieczonka, Tino,et al."Region-wide glacier mass budgets and area changes for the Central Tien Shan between similar to 1975 and 1999 using Hexagon KH-9 imagery".GLOBAL AND PLANETARY CHANGE 128(2015):1-13. |
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