E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle
A combination of measurements from Autosub, an autonomous underwater vehicle, and ship-based instruments are used to describe the oceanographic conditions beneath Fimbul Ice Shelf, Antarctica. The data show an intricate oceanographic regime that is suggestive of variability at seasonal or longer tim...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.224.216 2023-05-15T13:35:37+02:00 E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle Keith W. Nicholls E. Povl Abrahamsen Karen J. Heywood Kate Stansfield Svein Østerhus The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.224.216 http://www.aslo.org/lo/toc/vol_53/issue_5_part_2/2309.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.224.216 http://www.aslo.org/lo/toc/vol_53/issue_5_part_2/2309.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.aslo.org/lo/toc/vol_53/issue_5_part_2/2309.pdf text ftciteseerx 2016-01-07T18:24:56Z A combination of measurements from Autosub, an autonomous underwater vehicle, and ship-based instruments are used to describe the oceanographic conditions beneath Fimbul Ice Shelf, Antarctica. The data show an intricate oceanographic regime that is suggestive of variability at seasonal or longer time scales. Results from a numerical model of the flow beneath the ice shelf lend support to a strong seasonal variability, and data from instruments moored beneath the ice shelf show substantial temporal variations. The Autosub data indicate temperatures within the cavity somewhat lower than our model results would suggest; thus, our modeled melt rates (average of 0.85 m yr21) might be overestimates, although they are substantially lower than from previously published model studies (4.9 and 1.9 m yr21). The contribution of ice shelf melt in the freshwater balance of the waters upstream of the climatically important Filchner-Ronne Ice Shelf needs to be reassessed. Antarctica houses the greatest ice sheet of the Earth’s cryosphere. It contains the majority of the planet’s freshwater, which, if all released to the sea, would cause a sea-level rise of over 50 m (Lythe and Vaughan 2001). The ice sheet also plays active, though by no means fully Text Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Fimbul Ice Shelf Ice Sheet Ice Shelf Ronne Ice Shelf Unknown Fimbul Ice Shelf ENVELOPE(-0.500,-0.500,-70.750,-70.750) Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) |
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Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
A combination of measurements from Autosub, an autonomous underwater vehicle, and ship-based instruments are used to describe the oceanographic conditions beneath Fimbul Ice Shelf, Antarctica. The data show an intricate oceanographic regime that is suggestive of variability at seasonal or longer time scales. Results from a numerical model of the flow beneath the ice shelf lend support to a strong seasonal variability, and data from instruments moored beneath the ice shelf show substantial temporal variations. The Autosub data indicate temperatures within the cavity somewhat lower than our model results would suggest; thus, our modeled melt rates (average of 0.85 m yr21) might be overestimates, although they are substantially lower than from previously published model studies (4.9 and 1.9 m yr21). The contribution of ice shelf melt in the freshwater balance of the waters upstream of the climatically important Filchner-Ronne Ice Shelf needs to be reassessed. Antarctica houses the greatest ice sheet of the Earth’s cryosphere. It contains the majority of the planet’s freshwater, which, if all released to the sea, would cause a sea-level rise of over 50 m (Lythe and Vaughan 2001). The ice sheet also plays active, though by no means fully |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Keith W. Nicholls E. Povl Abrahamsen Karen J. Heywood Kate Stansfield Svein Østerhus |
spellingShingle |
Keith W. Nicholls E. Povl Abrahamsen Karen J. Heywood Kate Stansfield Svein Østerhus E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle |
author_facet |
Keith W. Nicholls E. Povl Abrahamsen Karen J. Heywood Kate Stansfield Svein Østerhus |
author_sort |
Keith W. Nicholls |
title |
E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_short |
E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_full |
E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_fullStr |
E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_full_unstemmed |
E 2008, by the American Society of Limnology and Oceanography, Inc. High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_sort |
e 2008, by the american society of limnology and oceanography, inc. high-latitude oceanography using the autosub autonomous underwater vehicle |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.224.216 http://www.aslo.org/lo/toc/vol_53/issue_5_part_2/2309.pdf |
long_lat |
ENVELOPE(-0.500,-0.500,-70.750,-70.750) ENVELOPE(-61.000,-61.000,-78.500,-78.500) |
geographic |
Fimbul Ice Shelf Ronne Ice Shelf |
geographic_facet |
Fimbul Ice Shelf Ronne Ice Shelf |
genre |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Fimbul Ice Shelf Ice Sheet Ice Shelf Ronne Ice Shelf |
genre_facet |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Fimbul Ice Shelf Ice Sheet Ice Shelf Ronne Ice Shelf |
op_source |
http://www.aslo.org/lo/toc/vol_53/issue_5_part_2/2309.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.224.216 http://www.aslo.org/lo/toc/vol_53/issue_5_part_2/2309.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766068058287243264 |