Wintertime water mass modification near an Antarctic ice front
Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here the authors present data from an instrumented Weddell seal that spent eight consecutive months (February–September) foraging in close proximity...
Published in: | Journal of Physical Oceanography |
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American Meteorological Society
2013
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Online Access: | http://nora.nerc.ac.uk/id/eprint/501264/ https://nora.nerc.ac.uk/id/eprint/501264/2/jpo-d-12-0186%252E1.pdf https://doi.org/10.1175/JPO-D-12-0186.1 |
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ftnerc:oai:nora.nerc.ac.uk:501264 2023-05-15T13:48:07+02:00 Wintertime water mass modification near an Antarctic ice front Arthun, Marius Nicholls, Keith W. Boehme, Lars 2013-02 text http://nora.nerc.ac.uk/id/eprint/501264/ https://nora.nerc.ac.uk/id/eprint/501264/2/jpo-d-12-0186%252E1.pdf https://doi.org/10.1175/JPO-D-12-0186.1 en eng American Meteorological Society https://nora.nerc.ac.uk/id/eprint/501264/2/jpo-d-12-0186%252E1.pdf Arthun, Marius; Nicholls, Keith W. orcid:0000-0002-2188-4509 Boehme, Lars. 2013 Wintertime water mass modification near an Antarctic ice front. Journal of Physical Oceanography, 43 (2). 359-365. https://doi.org/10.1175/JPO-D-12-0186.1 <https://doi.org/10.1175/JPO-D-12-0186.1> Publication - Article PeerReviewed 2013 ftnerc https://doi.org/10.1175/JPO-D-12-0186.1 2023-02-04T19:36:40Z Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here the authors present data from an instrumented Weddell seal that spent eight consecutive months (February–September) foraging in close proximity to the Filchner Ice Shelf, thus providing detailed information about the evolution of mixed layer hydrography during the austral autumn and winter. The resultant time series of hydrography shows strong seasonal water mass modification, dominated by an upper-ocean (0–300 m) salinity increase of 0.31, corresponding to 3.1 m sea ice growth, and the development of a 500-m thick winter mixed layer. Observations furthermore highlight a gradual salinity increase in a slow (3–5 cm s−1) southward flow on the continental shelf, toward the site, and suggest that the inferred ice production is better considered as a regional average rather than being purely local. No clear seasonality is observed in the properties of the underlying Ice Shelf Water. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Sea ice Weddell Seal Natural Environment Research Council: NERC Open Research Archive Antarctic Austral Weddell Filchner Ice Shelf ENVELOPE(-40.000,-40.000,-79.000,-79.000) Journal of Physical Oceanography 43 2 359 365 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here the authors present data from an instrumented Weddell seal that spent eight consecutive months (February–September) foraging in close proximity to the Filchner Ice Shelf, thus providing detailed information about the evolution of mixed layer hydrography during the austral autumn and winter. The resultant time series of hydrography shows strong seasonal water mass modification, dominated by an upper-ocean (0–300 m) salinity increase of 0.31, corresponding to 3.1 m sea ice growth, and the development of a 500-m thick winter mixed layer. Observations furthermore highlight a gradual salinity increase in a slow (3–5 cm s−1) southward flow on the continental shelf, toward the site, and suggest that the inferred ice production is better considered as a regional average rather than being purely local. No clear seasonality is observed in the properties of the underlying Ice Shelf Water. |
format |
Article in Journal/Newspaper |
author |
Arthun, Marius Nicholls, Keith W. Boehme, Lars |
spellingShingle |
Arthun, Marius Nicholls, Keith W. Boehme, Lars Wintertime water mass modification near an Antarctic ice front |
author_facet |
Arthun, Marius Nicholls, Keith W. Boehme, Lars |
author_sort |
Arthun, Marius |
title |
Wintertime water mass modification near an Antarctic ice front |
title_short |
Wintertime water mass modification near an Antarctic ice front |
title_full |
Wintertime water mass modification near an Antarctic ice front |
title_fullStr |
Wintertime water mass modification near an Antarctic ice front |
title_full_unstemmed |
Wintertime water mass modification near an Antarctic ice front |
title_sort |
wintertime water mass modification near an antarctic ice front |
publisher |
American Meteorological Society |
publishDate |
2013 |
url |
http://nora.nerc.ac.uk/id/eprint/501264/ https://nora.nerc.ac.uk/id/eprint/501264/2/jpo-d-12-0186%252E1.pdf https://doi.org/10.1175/JPO-D-12-0186.1 |
long_lat |
ENVELOPE(-40.000,-40.000,-79.000,-79.000) |
geographic |
Antarctic Austral Weddell Filchner Ice Shelf |
geographic_facet |
Antarctic Austral Weddell Filchner Ice Shelf |
genre |
Antarc* Antarctic Ice Shelf Sea ice Weddell Seal |
genre_facet |
Antarc* Antarctic Ice Shelf Sea ice Weddell Seal |
op_relation |
https://nora.nerc.ac.uk/id/eprint/501264/2/jpo-d-12-0186%252E1.pdf Arthun, Marius; Nicholls, Keith W. orcid:0000-0002-2188-4509 Boehme, Lars. 2013 Wintertime water mass modification near an Antarctic ice front. Journal of Physical Oceanography, 43 (2). 359-365. https://doi.org/10.1175/JPO-D-12-0186.1 <https://doi.org/10.1175/JPO-D-12-0186.1> |
op_doi |
https://doi.org/10.1175/JPO-D-12-0186.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
43 |
container_issue |
2 |
container_start_page |
359 |
op_container_end_page |
365 |
_version_ |
1766248636702785536 |