Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica
The meromictic lakes that occur in closed, rocky basins of the Vestfold Hills provide records of local climate change. From a consideration of the physical structure of these stratified lakes it is apparent that maximum winter under-ice water salinity (associated with minimum water temperatures) is...
Published in: | Papers and Proceedings of the Royal Society of Tasmania |
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Language: | English |
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1996
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Online Access: | https://eprints.utas.edu.au/14434/ https://eprints.utas.edu.au/14434/4/1996-Gibson-Meromictic.pdf |
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ftunivtasmania:oai:eprints.utas.edu.au:14434 2023-05-15T14:00:15+02:00 Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica Gibson, JAE Burton, HR 1996 application/pdf https://eprints.utas.edu.au/14434/ https://eprints.utas.edu.au/14434/4/1996-Gibson-Meromictic.pdf en eng https://eprints.utas.edu.au/14434/4/1996-Gibson-Meromictic.pdf Gibson, JAE and Burton, HR 1996 , 'Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica' , Papers and Proceedings of the Royal Society of Tasmania, vol. 130, no. 2 , pp. 73-78 , doi:10.26749/rstpp.130.2.73 <http://dx.doi.org/10.26749/rstpp.130.2.73>. cc_utas Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Article PeerReviewed 1996 ftunivtasmania https://doi.org/10.26749/rstpp.130.2.73 2020-05-30T07:28:17Z The meromictic lakes that occur in closed, rocky basins of the Vestfold Hills provide records of local climate change. From a consideration of the physical structure of these stratified lakes it is apparent that maximum winter under-ice water salinity (associated with minimum water temperatures) is a function of the water level for a particular lake. The structure of the lakes will also be affected by changes in water balance. An increase in water level will result in a lens of fresher water and warmer winter temperatures at the surface of the lake, whereas a decrease will result in increased salinity, colder temperatures and deeper epilimnetic mixing. Evidence of periods oflow water level is retained by the lakes as intervals of near isopycnal water within the water column, which can be used to calculate minimum palaeolevels. Changes in the structures of Organic Lake and Ace Lake between 1975 and 1995 are used in this article to illustrate these points. Article in Journal/Newspaper Antarc* Antarctic Antarctica University of Tasmania: UTas ePrints Antarctic Vestfold Hills Vestfold Ace Lake ENVELOPE(78.188,78.188,-68.472,-68.472) Organic Lake ENVELOPE(78.190,78.190,-68.457,-68.457) Papers and Proceedings of the Royal Society of Tasmania 130 2 73 78 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
spellingShingle |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library Gibson, JAE Burton, HR Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica |
topic_facet |
Royal Society of Tasmania RST Van Diemens Land natural history science ecology taxonomy botany zoology geology geography papers & proceedings Australia UTAS Library |
description |
The meromictic lakes that occur in closed, rocky basins of the Vestfold Hills provide records of local climate change. From a consideration of the physical structure of these stratified lakes it is apparent that maximum winter under-ice water salinity (associated with minimum water temperatures) is a function of the water level for a particular lake. The structure of the lakes will also be affected by changes in water balance. An increase in water level will result in a lens of fresher water and warmer winter temperatures at the surface of the lake, whereas a decrease will result in increased salinity, colder temperatures and deeper epilimnetic mixing. Evidence of periods oflow water level is retained by the lakes as intervals of near isopycnal water within the water column, which can be used to calculate minimum palaeolevels. Changes in the structures of Organic Lake and Ace Lake between 1975 and 1995 are used in this article to illustrate these points. |
format |
Article in Journal/Newspaper |
author |
Gibson, JAE Burton, HR |
author_facet |
Gibson, JAE Burton, HR |
author_sort |
Gibson, JAE |
title |
Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica |
title_short |
Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica |
title_full |
Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica |
title_fullStr |
Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica |
title_full_unstemmed |
Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica |
title_sort |
meromictic antarctic lakes as recorders of climate change: the structures of ace and organic lakes, vestfold hills, antarctica |
publishDate |
1996 |
url |
https://eprints.utas.edu.au/14434/ https://eprints.utas.edu.au/14434/4/1996-Gibson-Meromictic.pdf |
long_lat |
ENVELOPE(78.188,78.188,-68.472,-68.472) ENVELOPE(78.190,78.190,-68.457,-68.457) |
geographic |
Antarctic Vestfold Hills Vestfold Ace Lake Organic Lake |
geographic_facet |
Antarctic Vestfold Hills Vestfold Ace Lake Organic Lake |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://eprints.utas.edu.au/14434/4/1996-Gibson-Meromictic.pdf Gibson, JAE and Burton, HR 1996 , 'Meromictic Antarctic lakes as recorders of climate change: the structures of Ace and Organic Lakes, Vestfold Hills, Antarctica' , Papers and Proceedings of the Royal Society of Tasmania, vol. 130, no. 2 , pp. 73-78 , doi:10.26749/rstpp.130.2.73 <http://dx.doi.org/10.26749/rstpp.130.2.73>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.26749/rstpp.130.2.73 |
container_title |
Papers and Proceedings of the Royal Society of Tasmania |
container_volume |
130 |
container_issue |
2 |
container_start_page |
73 |
op_container_end_page |
78 |
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1766269262536638464 |