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...
Published in: | Limnology and Oceanography |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2008
|
Subjects: | |
Online Access: | https://ueaeprints.uea.ac.uk/id/eprint/24749/ https://doi.org/10.4319/lo.2008.53.5_part_2.2309 |
id |
ftuniveastangl:oai:ueaeprints.uea.ac.uk:24749 |
---|---|
record_format |
openpolar |
spelling |
ftuniveastangl:oai:ueaeprints.uea.ac.uk:24749 2023-05-15T14:07:47+02:00 High-latitude oceanography using the Autosub autonomous underwater vehicle Nicholls, Keith W. Abrahamsen, E. Povl Heywood, Karen J. Stansfield, Kate Østerhus, Svein 2008-09 https://ueaeprints.uea.ac.uk/id/eprint/24749/ https://doi.org/10.4319/lo.2008.53.5_part_2.2309 unknown Nicholls, Keith W., Abrahamsen, E. Povl, Heywood, Karen J., Stansfield, Kate and Østerhus, Svein (2008) High-latitude oceanography using the Autosub autonomous underwater vehicle. Limnology and Oceanography, 53 (5 PART 2). pp. 2309-2320. ISSN 1939-5590 doi:10.4319/lo.2008.53.5_part_2.2309 Article PeerReviewed 2008 ftuniveastangl https://doi.org/10.4319/lo.2008.53.5_part_2.2309 2023-03-23T23:31:31Z 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 yr-1) might be overestimates, although they are substantially lower than from previously published model studies (4.9 and 1.9 m yr-1). 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. Article in Journal/Newspaper Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Fimbul Ice Shelf Ice Shelf Ronne Ice Shelf University of East Anglia: UEA Digital Repository Fimbul Ice Shelf ENVELOPE(-0.500,-0.500,-70.750,-70.750) Ronne Ice Shelf ENVELOPE(-61.000,-61.000,-78.500,-78.500) Limnology and Oceanography 53 5part2 2309 2320 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
unknown |
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 yr-1) might be overestimates, although they are substantially lower than from previously published model studies (4.9 and 1.9 m yr-1). 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. |
format |
Article in Journal/Newspaper |
author |
Nicholls, Keith W. Abrahamsen, E. Povl Heywood, Karen J. Stansfield, Kate Østerhus, Svein |
spellingShingle |
Nicholls, Keith W. Abrahamsen, E. Povl Heywood, Karen J. Stansfield, Kate Østerhus, Svein High-latitude oceanography using the Autosub autonomous underwater vehicle |
author_facet |
Nicholls, Keith W. Abrahamsen, E. Povl Heywood, Karen J. Stansfield, Kate Østerhus, Svein |
author_sort |
Nicholls, Keith W. |
title |
High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_short |
High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_full |
High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_fullStr |
High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_full_unstemmed |
High-latitude oceanography using the Autosub autonomous underwater vehicle |
title_sort |
high-latitude oceanography using the autosub autonomous underwater vehicle |
publishDate |
2008 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/24749/ https://doi.org/10.4319/lo.2008.53.5_part_2.2309 |
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 Shelf Ronne Ice Shelf |
genre_facet |
Antarc* Antarctica Filchner Ronne Ice Shelf Filchner-Ronne Ice Shelf Fimbul Ice Shelf Ice Shelf Ronne Ice Shelf |
op_relation |
Nicholls, Keith W., Abrahamsen, E. Povl, Heywood, Karen J., Stansfield, Kate and Østerhus, Svein (2008) High-latitude oceanography using the Autosub autonomous underwater vehicle. Limnology and Oceanography, 53 (5 PART 2). pp. 2309-2320. ISSN 1939-5590 doi:10.4319/lo.2008.53.5_part_2.2309 |
op_doi |
https://doi.org/10.4319/lo.2008.53.5_part_2.2309 |
container_title |
Limnology and Oceanography |
container_volume |
53 |
container_issue |
5part2 |
container_start_page |
2309 |
op_container_end_page |
2320 |
_version_ |
1766279799999823872 |