Wintertime water mass modification near an Antarctic Ice Shelf front
Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here we present data from an instrumented Weddell seal that spent 8 consecutive months (February–September) for aging in close proximity to Filchner...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/3903 2023-07-02T03:30:17+02:00 Wintertime water mass modification near an Antarctic Ice Shelf front Arthun, Marius Nicholls, Keith Boehme, Lars NERC University of St Andrews. School of Biology University of St Andrews. Scottish Oceans Institute University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Sea Mammal Research Unit 2013-08-02 application/pdf http://hdl.handle.net/10023/3903 https://doi.org/10.1175/JPO-D-12-0186.1 http://journals.ametsoc.org/doi/full/10.1175/JPO-D-12-0186.1 eng eng Journal of Physical Oceanography Arthun , M , Nicholls , K & Boehme , L 2013 , ' Wintertime water mass modification near an Antarctic Ice Shelf front ' , Journal of Physical Oceanography , vol. 43 , no. 2 , pp. 359-365 . https://doi.org/10.1175/JPO-D-12-0186.1 0022-3670 PURE: 27672043 PURE UUID: e6a3f07c-cc81-42f9-98bb-c4cc9bcb93d1 Scopus: 84875549662 http://hdl.handle.net/10023/3903 https://doi.org/10.1175/JPO-D-12-0186.1 http://journals.ametsoc.org/doi/full/10.1175/JPO-D-12-0186.1 NE/G014833/1 © 2013 American Meteorological Society Antarctica Continental shelf/slope Sea ice Southern Ocean Mixed layer In situ oceanic observations GC Oceanography GC Journal article 2013 ftstandrewserep https://doi.org/10.1175/JPO-D-12-0186.1 2023-06-13T18:27:08Z Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here we present data from an instrumented Weddell seal that spent 8 consecutive months (February–September) for aging in close proximity to 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 cms−1 ) southward flow on the continental shelf, to wards 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. Publisher PDF Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Shelf Sea ice Southern Ocean Weddell Seal University of St Andrews: Digital Research Repository Antarctic Austral Filchner Ice Shelf ENVELOPE(-40.000,-40.000,-79.000,-79.000) Southern Ocean Weddell Journal of Physical Oceanography 43 2 359 365 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
Antarctica Continental shelf/slope Sea ice Southern Ocean Mixed layer In situ oceanic observations GC Oceanography GC |
spellingShingle |
Antarctica Continental shelf/slope Sea ice Southern Ocean Mixed layer In situ oceanic observations GC Oceanography GC Arthun, Marius Nicholls, Keith Boehme, Lars Wintertime water mass modification near an Antarctic Ice Shelf front |
topic_facet |
Antarctica Continental shelf/slope Sea ice Southern Ocean Mixed layer In situ oceanic observations GC Oceanography GC |
description |
Under ice measurements by seals carrying a miniaturized conductivity–temperature–depth (CTD) instrument fill an important gap in existing observations. Here we present data from an instrumented Weddell seal that spent 8 consecutive months (February–September) for aging in close proximity to 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 cms−1 ) southward flow on the continental shelf, to wards 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. Publisher PDF Peer reviewed |
author2 |
NERC University of St Andrews. School of Biology University of St Andrews. Scottish Oceans Institute University of St Andrews. Marine Alliance for Science & Technology Scotland University of St Andrews. Sea Mammal Research Unit |
format |
Article in Journal/Newspaper |
author |
Arthun, Marius Nicholls, Keith Boehme, Lars |
author_facet |
Arthun, Marius Nicholls, Keith Boehme, Lars |
author_sort |
Arthun, Marius |
title |
Wintertime water mass modification near an Antarctic Ice Shelf front |
title_short |
Wintertime water mass modification near an Antarctic Ice Shelf front |
title_full |
Wintertime water mass modification near an Antarctic Ice Shelf front |
title_fullStr |
Wintertime water mass modification near an Antarctic Ice Shelf front |
title_full_unstemmed |
Wintertime water mass modification near an Antarctic Ice Shelf front |
title_sort |
wintertime water mass modification near an antarctic ice shelf front |
publishDate |
2013 |
url |
http://hdl.handle.net/10023/3903 https://doi.org/10.1175/JPO-D-12-0186.1 http://journals.ametsoc.org/doi/full/10.1175/JPO-D-12-0186.1 |
long_lat |
ENVELOPE(-40.000,-40.000,-79.000,-79.000) |
geographic |
Antarctic Austral Filchner Ice Shelf Southern Ocean Weddell |
geographic_facet |
Antarctic Austral Filchner Ice Shelf Southern Ocean Weddell |
genre |
Antarc* Antarctic Antarctica Ice Shelf Sea ice Southern Ocean Weddell Seal |
genre_facet |
Antarc* Antarctic Antarctica Ice Shelf Sea ice Southern Ocean Weddell Seal |
op_relation |
Journal of Physical Oceanography Arthun , M , Nicholls , K & Boehme , L 2013 , ' Wintertime water mass modification near an Antarctic Ice Shelf front ' , Journal of Physical Oceanography , vol. 43 , no. 2 , pp. 359-365 . https://doi.org/10.1175/JPO-D-12-0186.1 0022-3670 PURE: 27672043 PURE UUID: e6a3f07c-cc81-42f9-98bb-c4cc9bcb93d1 Scopus: 84875549662 http://hdl.handle.net/10023/3903 https://doi.org/10.1175/JPO-D-12-0186.1 http://journals.ametsoc.org/doi/full/10.1175/JPO-D-12-0186.1 NE/G014833/1 |
op_rights |
© 2013 American Meteorological Society |
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_ |
1770274499841753088 |