globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-8-209-2014
Scopus记录号: 2-s2.0-84893308068
论文题名:
Brief communication: Further summer speedup of jakobshavn isbræ
作者: Joughin I; , Smith B; E; , Shean D; E; , Floricioiu D
刊名: Cryosphere
ISSN: 19940416
出版年: 2014
卷: 8, 期:1
起始页码: 209
结束页码: 214
语种: 英语
英文关键词: data set ; flow velocity ; glacial environment ; sea level ; shallow water ; summer ; Arctic ; Greenland ; Jakobshavn Isbrae
英文摘要: We have extended the record of flow speed on Jakobshavn Isbræ through the summer of 2013. These new data reveal large seasonal speedups, 30 to 50% greater than previous summers. At a point a few kilometres inland from the terminus, the mean annual speed for 2012 is nearly three times as great as that in the mid-1990s, while the peak summer speeds are more than a factor of four greater. These speeds were achieved as the glacier terminus appears to have retreated to the bottom of an over-deepened basin with a depth of ∼ 1300 m below sea level. The terminus is likely to reach the deepest section of the trough within a few decades, after which it could rapidly retreat to the shallower regions ∼ 50 km farther upstream, potentially by the end of this century. © 2014 Author (s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/74893
Appears in Collections:影响、适应和脆弱性
气候变化与战略

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作者单位: Polar Science Center, Applied Physics Lab, University of Washington, 1013 NE 40th St., Seattle, WA 98105-6698, United States; Dept. of Earth and Space Sciences, University of Washington, Seattle, WA 98195, United States; German Aerospace Center (DLR), Remote Sensing Technology Institute, SAR Signal Processing, Muenchenerstr. 20, 82230 Wessling, Germany

Recommended Citation:
Joughin I,, Smith B,E,et al. Brief communication: Further summer speedup of jakobshavn isbræ[J]. Cryosphere,2014-01-01,8(1)
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