Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica
Radio-echo sounding reveals a 10 km-long lake beneath ∼3.4 km of ice near the Ellsworth Mountains in West Antarctica, 20 km from the ice divide. Subglacial Lake Ellsworth is located within a distinct topographic hollow, which is ∼1.5 km deeper than the surrounding bed. Judging by bed slopes flanking...
Published in: | Geophysical Research Letters |
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American Geophysical Union
2004
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Online Access: | https://nrl.northumbria.ac.uk/id/eprint/19735/ https://doi.org/10.1029/2004GL021477 |
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ftunivnorthumb:oai:nrl.northumbria.ac.uk:19735 2023-05-15T13:35:33+02:00 Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica Siegert, Martin Hindmarsh, Richard Corr, Hugh Smith, Andrew Woodward, John King, Edward Payne, Antony J. Joughin, Ian 2004-12 https://nrl.northumbria.ac.uk/id/eprint/19735/ https://doi.org/10.1029/2004GL021477 unknown American Geophysical Union Siegert, Martin, Hindmarsh, Richard, Corr, Hugh, Smith, Andrew, Woodward, John, King, Edward, Payne, Antony J. and Joughin, Ian (2004) Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica. Geophysical Research Letters, 31 (23). pp. 1-4. ISSN 0094-8276 F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2004 ftunivnorthumb https://doi.org/10.1029/2004GL021477 2022-09-25T06:00:45Z Radio-echo sounding reveals a 10 km-long lake beneath ∼3.4 km of ice near the Ellsworth Mountains in West Antarctica, 20 km from the ice divide. Subglacial Lake Ellsworth is located within a distinct topographic hollow, which is ∼1.5 km deeper than the surrounding bed. Judging by bed slopes flanking the lake, the water depth is at least 10s of metres. Calculations of basal temperature reveal the ice base to be warm both now and during full glacial periods. As the environments of subglacial lakes are broadly similar, life may be expected in Lake Ellsworth as in any other. Given this, its physical characteristics, and the fact that the West Antarctic Ice Sheet has been accessed on several occasions, Lake Ellsworth is an excellent candidate for in situ examination. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet West Antarctica Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic Ellsworth Mountains ENVELOPE(-85.000,-85.000,-78.750,-78.750) West Antarctic Ice Sheet West Antarctica Geophysical Research Letters 31 23 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
unknown |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Siegert, Martin Hindmarsh, Richard Corr, Hugh Smith, Andrew Woodward, John King, Edward Payne, Antony J. Joughin, Ian Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Radio-echo sounding reveals a 10 km-long lake beneath ∼3.4 km of ice near the Ellsworth Mountains in West Antarctica, 20 km from the ice divide. Subglacial Lake Ellsworth is located within a distinct topographic hollow, which is ∼1.5 km deeper than the surrounding bed. Judging by bed slopes flanking the lake, the water depth is at least 10s of metres. Calculations of basal temperature reveal the ice base to be warm both now and during full glacial periods. As the environments of subglacial lakes are broadly similar, life may be expected in Lake Ellsworth as in any other. Given this, its physical characteristics, and the fact that the West Antarctic Ice Sheet has been accessed on several occasions, Lake Ellsworth is an excellent candidate for in situ examination. |
format |
Article in Journal/Newspaper |
author |
Siegert, Martin Hindmarsh, Richard Corr, Hugh Smith, Andrew Woodward, John King, Edward Payne, Antony J. Joughin, Ian |
author_facet |
Siegert, Martin Hindmarsh, Richard Corr, Hugh Smith, Andrew Woodward, John King, Edward Payne, Antony J. Joughin, Ian |
author_sort |
Siegert, Martin |
title |
Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica |
title_short |
Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica |
title_full |
Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica |
title_fullStr |
Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica |
title_full_unstemmed |
Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica |
title_sort |
subglacial lake ellsworth: a candidate for in situ exploration in west antarctica |
publisher |
American Geophysical Union |
publishDate |
2004 |
url |
https://nrl.northumbria.ac.uk/id/eprint/19735/ https://doi.org/10.1029/2004GL021477 |
long_lat |
ENVELOPE(-85.000,-85.000,-78.750,-78.750) |
geographic |
Antarctic Ellsworth Mountains West Antarctic Ice Sheet West Antarctica |
geographic_facet |
Antarctic Ellsworth Mountains West Antarctic Ice Sheet West Antarctica |
genre |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet West Antarctica |
op_relation |
Siegert, Martin, Hindmarsh, Richard, Corr, Hugh, Smith, Andrew, Woodward, John, King, Edward, Payne, Antony J. and Joughin, Ian (2004) Subglacial Lake Ellsworth: A candidate for in situ exploration in West Antarctica. Geophysical Research Letters, 31 (23). pp. 1-4. ISSN 0094-8276 |
op_doi |
https://doi.org/10.1029/2004GL021477 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
23 |
_version_ |
1766067085871415296 |