Subglacial Lake Vostok not expected to discharge water
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 e...
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| Veröffentlicht in: | Geophysical research letters 2014-10, Vol.41 (19), p.6772-6778 |
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| container_title | Geophysical research letters |
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| creator | Richter, Andreas Popov, Sergey V. Schröder, Ludwig Schwabe, Joachim Ewert, Heiko Scheinert, Mirko Horwath, Martin Dietrich, Reinhard |
| description | 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 |
| doi_str_mv | 10.1002/2014GL061433 |
| format | Article |
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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</description><identifier>ISSN: 0094-8276</identifier><identifier>EISSN: 1944-8007</identifier><identifier>DOI: 10.1002/2014GL061433</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Antarctica ; Aquifers ; Bedrock ; Climate ; Discharge ; Evaluation ; Exchanging ; Geologic depressions ; Geophysics ; Glaciation ; glaciology ; Groundwater discharge ; Harbors ; Height ; Ice ; Ice sheets ; Ice shelves ; Lake ice ; Lakes ; Land ice ; Quantitative analysis ; Ross ice shelf ; subglacial hydrology ; subglacial lake ; Subglacial water ; Thresholds ; Water ; Water discharge</subject><ispartof>Geophysical research letters, 2014-10, Vol.41 (19), p.6772-6778</ispartof><rights>2014. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4617-a14f59d31f86b7b020f72ca52874a47db699dedc93f0b3e5b38df02f945035ef3</citedby><cites>FETCH-LOGICAL-a4617-a14f59d31f86b7b020f72ca52874a47db699dedc93f0b3e5b38df02f945035ef3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2F2014GL061433$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2F2014GL061433$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,1427,11494,27903,27904,45553,45554,46387,46446,46811,46870</link.rule.ids></links><search><creatorcontrib>Richter, Andreas</creatorcontrib><creatorcontrib>Popov, Sergey V.</creatorcontrib><creatorcontrib>Schröder, Ludwig</creatorcontrib><creatorcontrib>Schwabe, Joachim</creatorcontrib><creatorcontrib>Ewert, Heiko</creatorcontrib><creatorcontrib>Scheinert, Mirko</creatorcontrib><creatorcontrib>Horwath, Martin</creatorcontrib><creatorcontrib>Dietrich, Reinhard</creatorcontrib><title>Subglacial Lake Vostok not expected to discharge water</title><title>Geophysical research letters</title><addtitle>Geophys. Res. Lett</addtitle><description>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</description><subject>Antarctica</subject><subject>Aquifers</subject><subject>Bedrock</subject><subject>Climate</subject><subject>Discharge</subject><subject>Evaluation</subject><subject>Exchanging</subject><subject>Geologic depressions</subject><subject>Geophysics</subject><subject>Glaciation</subject><subject>glaciology</subject><subject>Groundwater discharge</subject><subject>Harbors</subject><subject>Height</subject><subject>Ice</subject><subject>Ice sheets</subject><subject>Ice shelves</subject><subject>Lake ice</subject><subject>Lakes</subject><subject>Land ice</subject><subject>Quantitative analysis</subject><subject>Ross ice shelf</subject><subject>subglacial hydrology</subject><subject>subglacial lake</subject><subject>Subglacial water</subject><subject>Thresholds</subject><subject>Water</subject><subject>Water discharge</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqN0clOwzAQBmALgURZbjxAJC4cCMzYjpcjQlCWCFDZjpaT2BAammKnAt6elCKEOCBOnsM3_3g0hGwh7CEA3aeAfJiDQM7YEhmg5jxVAHKZDAB0X1MpVslajE8AwIDhgIjrWfHQ2LK2TZLbsUvu2ti142TSdol7m7qyc1XStUlVx_LRhgeXvNrOhQ2y4m0T3ebXu05uj49uDk_S_HJ4eniQp5YLlKlF7jNdMfRKFLIACl7S0mZUSW65rAqhdeWqUjMPBXNZwVTlgXrNM2CZ82yd7Cxyp6F9mbnYmef-I65p7MS1s2hQcEqpQmD_oKwP5UhlT7d_0ad2Fib9IgY1gs40SPWnUoIiMsXnWbsLVYY2xuC8mYb62YZ3g2DmVzE_r9JzuuCvdePe_7RmOMozip8z0kVTHTv39t1kw9gIyWRm7i-GRl3Rs3O8uDMj9gElIJjH</recordid><startdate>20141016</startdate><enddate>20141016</enddate><creator>Richter, Andreas</creator><creator>Popov, Sergey V.</creator><creator>Schröder, Ludwig</creator><creator>Schwabe, Joachim</creator><creator>Ewert, Heiko</creator><creator>Scheinert, Mirko</creator><creator>Horwath, Martin</creator><creator>Dietrich, Reinhard</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7TN</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>7QH</scope><scope>7UA</scope><scope>C1K</scope></search><sort><creationdate>20141016</creationdate><title>Subglacial Lake Vostok not expected to discharge water</title><author>Richter, Andreas ; Popov, Sergey V. ; Schröder, Ludwig ; Schwabe, Joachim ; Ewert, Heiko ; Scheinert, Mirko ; Horwath, Martin ; Dietrich, Reinhard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4617-a14f59d31f86b7b020f72ca52874a47db699dedc93f0b3e5b38df02f945035ef3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Antarctica</topic><topic>Aquifers</topic><topic>Bedrock</topic><topic>Climate</topic><topic>Discharge</topic><topic>Evaluation</topic><topic>Exchanging</topic><topic>Geologic depressions</topic><topic>Geophysics</topic><topic>Glaciation</topic><topic>glaciology</topic><topic>Groundwater discharge</topic><topic>Harbors</topic><topic>Height</topic><topic>Ice</topic><topic>Ice sheets</topic><topic>Ice shelves</topic><topic>Lake ice</topic><topic>Lakes</topic><topic>Land ice</topic><topic>Quantitative analysis</topic><topic>Ross ice shelf</topic><topic>subglacial hydrology</topic><topic>subglacial lake</topic><topic>Subglacial water</topic><topic>Thresholds</topic><topic>Water</topic><topic>Water discharge</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Richter, Andreas</creatorcontrib><creatorcontrib>Popov, Sergey V.</creatorcontrib><creatorcontrib>Schröder, Ludwig</creatorcontrib><creatorcontrib>Schwabe, Joachim</creatorcontrib><creatorcontrib>Ewert, Heiko</creatorcontrib><creatorcontrib>Scheinert, Mirko</creatorcontrib><creatorcontrib>Horwath, Martin</creatorcontrib><creatorcontrib>Dietrich, Reinhard</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Technology Research Database</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Richter, Andreas</au><au>Popov, Sergey V.</au><au>Schröder, Ludwig</au><au>Schwabe, Joachim</au><au>Ewert, Heiko</au><au>Scheinert, Mirko</au><au>Horwath, Martin</au><au>Dietrich, Reinhard</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Subglacial Lake Vostok not expected to discharge water</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2014-10-16</date><risdate>2014</risdate><volume>41</volume><issue>19</issue><spage>6772</spage><epage>6778</epage><pages>6772-6778</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><abstract>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</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/2014GL061433</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0094-8276 |
| ispartof | Geophysical research letters, 2014-10, Vol.41 (19), p.6772-6778 |
| issn | 0094-8276 1944-8007 |
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| source | Wiley Online Library Journals Frontfile Complete; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Wiley Free Content; Wiley-Blackwell AGU Digital Library |
| subjects | Antarctica Aquifers Bedrock Climate Discharge Evaluation Exchanging Geologic depressions Geophysics Glaciation glaciology Groundwater discharge Harbors Height Ice Ice sheets Ice shelves Lake ice Lakes Land ice Quantitative analysis Ross ice shelf subglacial hydrology subglacial lake Subglacial water Thresholds Water Water discharge |
| title | Subglacial Lake Vostok not expected to discharge water |
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