Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica
Epishelf lakes, positioned between ice-free areas and floating ice shelves or glaciers, are unusual tidal, but largely freshwater, environments found in both the Arctic and the Antarctic. The greatest concentration of these lakes is in the Bunger Hills, East Antarctica (66°S, 100°E). We present and...
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2002
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Online Access: | http://dx.doi.org/10.1017/s095410200200010x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200200010X |
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crcambridgeupr:10.1017/s095410200200010x 2024-03-03T08:39:16+00:00 Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica GIBSON, JOHN A.E. ANDERSEN, DALE T. 2002 http://dx.doi.org/10.1017/s095410200200010x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200200010X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 14, issue 3, page 253-261 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2002 crcambridgeupr https://doi.org/10.1017/s095410200200010x 2024-02-08T08:33:33Z Epishelf lakes, positioned between ice-free areas and floating ice shelves or glaciers, are unusual tidal, but largely freshwater, environments found in both the Arctic and the Antarctic. The greatest concentration of these lakes is in the Bunger Hills, East Antarctica (66°S, 100°E). We present and discuss temperature and salinity profiles for five epishelf lakes from this region, most of which show unusual properties. White Smoke Lake is fresh and cold (<0.1°C) throughout; Lake Pol’anskogo has two basins, one fresh and cold, the other saline and warm; ‘Southern’ Lake is cold and saline at depth; Transkriptsii Gulf has a deep, warm saline layer; and ‘Northern’ Lake is relatively warm throughout. The structures of these lakes can be explained in terms of a simple model in which the isolated saline water evident in three of the lakes entered the basins through the connection to the marine waters during periods of reduced freshwater input. By dating these marine incursions, periods of reduced melt, presumably due to colder temperatures, can be determined. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Arctic East Antarctica Ice Shelves Cambridge University Press Arctic Antarctic The Antarctic East Antarctica Bunger Hills ENVELOPE(100.883,100.883,-66.167,-66.167) Southern Lake ENVELOPE(-94.333,-94.333,62.217,62.217) Transkriptsii Gulf ENVELOPE(100.550,100.550,-66.250,-66.250) Smoke Lake ENVELOPE(-90.750,-90.750,64.117,64.117) Antarctic Science 14 3 253 261 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography GIBSON, JOHN A.E. ANDERSEN, DALE T. Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Epishelf lakes, positioned between ice-free areas and floating ice shelves or glaciers, are unusual tidal, but largely freshwater, environments found in both the Arctic and the Antarctic. The greatest concentration of these lakes is in the Bunger Hills, East Antarctica (66°S, 100°E). We present and discuss temperature and salinity profiles for five epishelf lakes from this region, most of which show unusual properties. White Smoke Lake is fresh and cold (<0.1°C) throughout; Lake Pol’anskogo has two basins, one fresh and cold, the other saline and warm; ‘Southern’ Lake is cold and saline at depth; Transkriptsii Gulf has a deep, warm saline layer; and ‘Northern’ Lake is relatively warm throughout. The structures of these lakes can be explained in terms of a simple model in which the isolated saline water evident in three of the lakes entered the basins through the connection to the marine waters during periods of reduced freshwater input. By dating these marine incursions, periods of reduced melt, presumably due to colder temperatures, can be determined. |
format |
Article in Journal/Newspaper |
author |
GIBSON, JOHN A.E. ANDERSEN, DALE T. |
author_facet |
GIBSON, JOHN A.E. ANDERSEN, DALE T. |
author_sort |
GIBSON, JOHN A.E. |
title |
Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica |
title_short |
Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica |
title_full |
Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica |
title_fullStr |
Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica |
title_full_unstemmed |
Physical structure of epishelf lakes of the southern Bunger Hills, East Antarctica |
title_sort |
physical structure of epishelf lakes of the southern bunger hills, east antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1017/s095410200200010x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410200200010X |
long_lat |
ENVELOPE(100.883,100.883,-66.167,-66.167) ENVELOPE(-94.333,-94.333,62.217,62.217) ENVELOPE(100.550,100.550,-66.250,-66.250) ENVELOPE(-90.750,-90.750,64.117,64.117) |
geographic |
Arctic Antarctic The Antarctic East Antarctica Bunger Hills Southern Lake Transkriptsii Gulf Smoke Lake |
geographic_facet |
Arctic Antarctic The Antarctic East Antarctica Bunger Hills Southern Lake Transkriptsii Gulf Smoke Lake |
genre |
Antarc* Antarctic Antarctic Science Antarctica Arctic East Antarctica Ice Shelves |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica Arctic East Antarctica Ice Shelves |
op_source |
Antarctic Science volume 14, issue 3, page 253-261 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410200200010x |
container_title |
Antarctic Science |
container_volume |
14 |
container_issue |
3 |
container_start_page |
253 |
op_container_end_page |
261 |
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1792494707544162304 |