Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet
Subglacial outburst floods at the margins of the Antarctic and Laurentide Ice Sheets have been linked to changes in global ocean circulation and climate. The impact of palaeo-hydrological systems beneath the East Antarctic Ice Sheet (EAIS) has, however, remained elusive. By analysing bed morphology...
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ftnerc:oai:nora.nerc.ac.uk:10571 2023-05-15T13:45:10+02:00 Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet Jordan, T.A. Ferraccioli, F. Corr, H. Graham, A. Armadillo, E. Bozzo, E. 2010 http://nora.nerc.ac.uk/id/eprint/10571/ unknown Wiley-Blackwell Publishing Jordan, T.A. orcid:0000-0003-2780-1986 Ferraccioli, F. orcid:0000-0002-9347-4736 Corr, H.; Graham, A.; Armadillo, E.; Bozzo, E. 2010 Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet. Terra Nova, 22 (4). 283-289. https://doi.org/10.1111/j.1365-3121.2010.00944.x <https://doi.org/10.1111/j.1365-3121.2010.00944.x> Meteorology and Climatology Glaciology Hydrology Publication - Article PeerReviewed 2010 ftnerc https://doi.org/10.1111/j.1365-3121.2010.00944.x 2023-02-04T19:26:49Z Subglacial outburst floods at the margins of the Antarctic and Laurentide Ice Sheets have been linked to changes in global ocean circulation and climate. The impact of palaeo-hydrological systems beneath the East Antarctic Ice Sheet (EAIS) has, however, remained elusive. By analysing bed morphology in the Wilkes Subglacial Basin, we hypothesise the occurrence of a major palaeo-subglacial lake and associated outburst floods in the interior of East Antarctica. At similar to 70 km wide and over 100 km long, the inferred area of outburst flooding is the most extensive in Antarctica, and the palaeo-subglacial lake from which the floods originated is the second largest after Lake Vostok. The scale of inferred outburst flooding is similar to mega-floods beneath the Laurentide Ice Sheet. We suggest that this major hydrological system developed during expansion of the EAIS in the middle Miocene and probably affected ice sheet stability, ocean circulation and climate evolution. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Natural Environment Research Council: NERC Open Research Archive Antarctic East Antarctic Ice Sheet East Antarctica Lake Vostok ENVELOPE(106.000,106.000,-77.500,-77.500) The Antarctic Wilkes Subglacial Basin ENVELOPE(145.000,145.000,-75.000,-75.000) Terra Nova no no |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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unknown |
topic |
Meteorology and Climatology Glaciology Hydrology |
spellingShingle |
Meteorology and Climatology Glaciology Hydrology Jordan, T.A. Ferraccioli, F. Corr, H. Graham, A. Armadillo, E. Bozzo, E. Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet |
topic_facet |
Meteorology and Climatology Glaciology Hydrology |
description |
Subglacial outburst floods at the margins of the Antarctic and Laurentide Ice Sheets have been linked to changes in global ocean circulation and climate. The impact of palaeo-hydrological systems beneath the East Antarctic Ice Sheet (EAIS) has, however, remained elusive. By analysing bed morphology in the Wilkes Subglacial Basin, we hypothesise the occurrence of a major palaeo-subglacial lake and associated outburst floods in the interior of East Antarctica. At similar to 70 km wide and over 100 km long, the inferred area of outburst flooding is the most extensive in Antarctica, and the palaeo-subglacial lake from which the floods originated is the second largest after Lake Vostok. The scale of inferred outburst flooding is similar to mega-floods beneath the Laurentide Ice Sheet. We suggest that this major hydrological system developed during expansion of the EAIS in the middle Miocene and probably affected ice sheet stability, ocean circulation and climate evolution. |
format |
Article in Journal/Newspaper |
author |
Jordan, T.A. Ferraccioli, F. Corr, H. Graham, A. Armadillo, E. Bozzo, E. |
author_facet |
Jordan, T.A. Ferraccioli, F. Corr, H. Graham, A. Armadillo, E. Bozzo, E. |
author_sort |
Jordan, T.A. |
title |
Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet |
title_short |
Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet |
title_full |
Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet |
title_fullStr |
Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet |
title_full_unstemmed |
Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet |
title_sort |
hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the east antarctic ice sheet |
publisher |
Wiley-Blackwell Publishing |
publishDate |
2010 |
url |
http://nora.nerc.ac.uk/id/eprint/10571/ |
long_lat |
ENVELOPE(106.000,106.000,-77.500,-77.500) ENVELOPE(145.000,145.000,-75.000,-75.000) |
geographic |
Antarctic East Antarctic Ice Sheet East Antarctica Lake Vostok The Antarctic Wilkes Subglacial Basin |
geographic_facet |
Antarctic East Antarctic Ice Sheet East Antarctica Lake Vostok The Antarctic Wilkes Subglacial Basin |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
op_relation |
Jordan, T.A. orcid:0000-0003-2780-1986 Ferraccioli, F. orcid:0000-0002-9347-4736 Corr, H.; Graham, A.; Armadillo, E.; Bozzo, E. 2010 Hypothesis for mega-outburst flooding from a palaeo-subglacial lake beneath the East Antarctic Ice Sheet. Terra Nova, 22 (4). 283-289. https://doi.org/10.1111/j.1365-3121.2010.00944.x <https://doi.org/10.1111/j.1365-3121.2010.00944.x> |
op_doi |
https://doi.org/10.1111/j.1365-3121.2010.00944.x |
container_title |
Terra Nova |
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no |
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no |
_version_ |
1766214191507570688 |