Heterogeneous glacial lake changes and links of lake expansions to the rapid thinning of adjacent glacier termini in the Himalayas
文献类型：期刊论文
| 作者 | Song, Chunqiao1; Sheng, Yongwei1; Wang, Jida2; Ke, Linghong3; Madson, Austin1; Nie, Yong4
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| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 280页码:30-38 |
| ISSN号 | 0169-555X |
| 关键词 | Glacial lake Glacier Debris Himalaya Remote sensing Climate change |
| 通讯作者 | Chunqiao Song |
| 英文摘要 | Glacier mass loss in the Himalayas has far-reaching implications for the alteration of regional hydrologic regimes, an increased risk of glacial lake outburst, downstream water resource abundance, and contributions to sea level rise. However, the mass losses of Himalayan glaciers are not well understood towing to the scarcity of observations and the heterogeneous responses of Himalayan glaciers to climate change and local factors (e.g., glacier surge, interacting with proglacial lakes). In particular, there is a lack of understanding on the unique interactions between moraine-dammed glacial lakes and their effects on debris cover on valley glacier termini. In this study, we examined the temporal evolution of 151 large glacial lakes across the Himalayas and then classified these glacial lakes into three categories: proglacial lakes in contact with full or partial debris-covered glaciers (debris-contact lakes), ice cliff-contact lakes, and non-glacier-contact lakes. The results show that debris-contact lakes experienced a dramatic areal increase of 36.5% over the years 2000 to 2014, while the latter two categories of lakes remained generally stable. The majority of lake expansions occurred at the glacier front without marked lake level rises. This suggests that the rapid expansion of these debris-contact lakes can be largely attributed to the thinning of debris-covered ice as caused by the melting of glacial fronts and the subsequent glacial retreat. We reconstructed the height variations of glacier fronts in contact with 57 different proglacial lakes during the years 2000 to 2014. These reconstructed surface elevation changes of debris-covered, lake-contact glacier fronts reveal significant thinning trends with considerable lowering rates that range from 1.0 to 9.7 m/y. Our study reveals that a substantial average ice thinning of 3.9 m/y occurred at the glacier fronts that are in contact with glacial lakes. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geography, Physical ; Geosciences, Multidisciplinary |
| 研究领域[WOS] | Physical Geography ; Geology |
| 关键词[WOS] | NEPAL HIMALAYA ; TIBETAN PLATEAU ; CLIMATE-CHANGE ; MASS BALANCES ; LEVEL CHANGES ; ICE CAPS ; ALTIMETRY ; IMAGERY ; OCEAN ; RIVER |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000393931400003 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/18508]  |
| 专题 | 成都山地灾害与环境研究所_数字山地与遥感应用中心 |
| 作者单位 | 1.Univ Calif Los Angeles, Dept Geog, Los Angeles, CA 90095 USA 2.Kansas State Univ, Dept Geog, Manhattan, KS 66506 USA 3.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong 999077, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Chunqiao,Sheng, Yongwei,Wang, Jida,et al. Heterogeneous glacial lake changes and links of lake expansions to the rapid thinning of adjacent glacier termini in the Himalayas[J]. GEOMORPHOLOGY,2017,280:30-38. |
| APA | Song, Chunqiao,Sheng, Yongwei,Wang, Jida,Ke, Linghong,Madson, Austin,&Nie, Yong.(2017).Heterogeneous glacial lake changes and links of lake expansions to the rapid thinning of adjacent glacier termini in the Himalayas.GEOMORPHOLOGY,280,30-38. |
| MLA | Song, Chunqiao,et al."Heterogeneous glacial lake changes and links of lake expansions to the rapid thinning of adjacent glacier termini in the Himalayas".GEOMORPHOLOGY 280(2017):30-38. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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