| DOI: | 10.1002/2014GL061433
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| 论文题名: | Subglacial Lake Vostok not expected to discharge water |
| 作者: | Richter A.; Popov S.V.; Schröder L.; Schwabe J.; Ewert H.; Scheinert M.; Horwath M.; Dietrich R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9746
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| EISSN: | 1944-9477
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| 出版年: | 2014
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| 卷: | 41, 期:19 | | 起始页码: | 6772
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| 结束页码: | 6778
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| 语种: | 英语
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| 英文关键词: | Antarctica
; glaciology
; subglacial hydrology
; subglacial lake
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| Scopus关键词: | Aquifers
; Glaciers
; Hydrology
; Antarctica
; Fluid potentials
; Glaciology
; Quantitative evaluation
; Ross ice shelves
; Subglacial hydrology
; Subglacial lakes
; Subglacial waters
; Lakes
; bedrock
; climate conditions
; discharge
; glacial hydrology
; ice sheet
; subglacial environment
; timescale
; water flow
; Antarctica
; East Antarctica
; Lake Vostok
; Ross Ice Shelf
; West Antarctica
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| 英文摘要: | The question whether Antarctica's largest lake, subglacial Lake Vostok, exchanges water is of interdisciplinary relevance but has been undecided so far. We present the potential pathway, outlet location, and threshold height of subglacial water discharge from this lake based on a quantitative evaluation of the fluid potential. If water left Lake Vostok, it would flow toward Ross Ice Shelf. Discharge would occur first to the east of the southern tip of the lake. At this location the bedrock threshold is 91 ± 23 m higher than the hydrostatic equipotential level of Lake Vostok. It is concluded that Lake Vostok is not likely to reach this level within climatic timescales and that no discharge of liquid water is to be expected. We show that in absence of the ice sheet the Lake Vostok depression would harbor a lake significantly deeper and larger than the present aquifer. Key Points Lake Vostok is not expected to discharge liquid water in climatic timescalesDischarge would lead from east of the lake's southern tip to Ross Ice ShelfLake Vostok would be significantly deeper and larger without ice sheet ©2014. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911366086&doi=10.1002%2f2014GL061433&partnerID=40&md5=cb9d74949223be9a906a569480578fda
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/7010
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Institut für Planetare Geodäsie, Technische Universität Dresden, Dresden, Germany
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| Recommended Citation: | |
Richter A.,Popov S.V.,Schröder L.,et al. Subglacial Lake Vostok not expected to discharge water[J]. Geophysical Research Letters,2014-01-01,41(19).
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