Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean
Recent seasonal Arctic Ocean sea ice retreat is a major indicator of polar climate change. The Arctic Ocean is generally quiescent with the interior basins characterized by low levels of turbulent mixing at intermediate depths. In contrast, under conditions of reduced sea ice cover, there is evidenc...
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ftsouthampton:oai:eprints.soton.ac.uk:403103 2023-07-30T03:59:54+02:00 Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean Lincoln, Ben J. Rippeth, Tom P. Lenn, Yueng-Djern Timmermans, Mary Louise Williams, William J. Bacon, Sheldon 2016-09-28 text https://eprints.soton.ac.uk/403103/ https://eprints.soton.ac.uk/403103/1/Lincoln_et_al-2016-Geophysical_Research_Letters.pdf en English eng https://eprints.soton.ac.uk/403103/1/Lincoln_et_al-2016-Geophysical_Research_Letters.pdf Lincoln, Ben J., Rippeth, Tom P., Lenn, Yueng-Djern, Timmermans, Mary Louise, Williams, William J. and Bacon, Sheldon (2016) Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean. Geophysical Research Letters, 43 (18), 9749-9756. (doi:10.1002/2016GL070454 <http://dx.doi.org/10.1002/2016GL070454>). cc_by_4 Article PeerReviewed 2016 ftsouthampton https://doi.org/10.1002/2016GL070454 2023-07-09T22:12:03Z Recent seasonal Arctic Ocean sea ice retreat is a major indicator of polar climate change. The Arctic Ocean is generally quiescent with the interior basins characterized by low levels of turbulent mixing at intermediate depths. In contrast, under conditions of reduced sea ice cover, there is evidence of energetic internal waves that have been attributed to increased momentum transfer from the atmosphere to the ocean. New measurements made in the Canada Basin during the unusually ice-free and stormy summer of 2012 show previously observed enhancement of internal wave energy associated with ice-free conditions. However, there is no enhancement of mixing at intermediate depths away from significant topography. This implies that contrary to expectations of increased wind-induced mixing under declining Arctic sea ice cover, the stratification in the central Canada Basin continues to suppress turbulent mixing at intermediate depths and to effectively isolate the large Atlantic and Pacific heat reservoirs from the sea surface. Article in Journal/Newspaper Arctic Arctic Arctic Ocean canada basin Climate change Sea ice University of Southampton: e-Prints Soton Arctic Arctic Ocean Canada Pacific Geophysical Research Letters 43 18 9749 9756 |
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Open Polar |
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University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
English |
description |
Recent seasonal Arctic Ocean sea ice retreat is a major indicator of polar climate change. The Arctic Ocean is generally quiescent with the interior basins characterized by low levels of turbulent mixing at intermediate depths. In contrast, under conditions of reduced sea ice cover, there is evidence of energetic internal waves that have been attributed to increased momentum transfer from the atmosphere to the ocean. New measurements made in the Canada Basin during the unusually ice-free and stormy summer of 2012 show previously observed enhancement of internal wave energy associated with ice-free conditions. However, there is no enhancement of mixing at intermediate depths away from significant topography. This implies that contrary to expectations of increased wind-induced mixing under declining Arctic sea ice cover, the stratification in the central Canada Basin continues to suppress turbulent mixing at intermediate depths and to effectively isolate the large Atlantic and Pacific heat reservoirs from the sea surface. |
format |
Article in Journal/Newspaper |
author |
Lincoln, Ben J. Rippeth, Tom P. Lenn, Yueng-Djern Timmermans, Mary Louise Williams, William J. Bacon, Sheldon |
spellingShingle |
Lincoln, Ben J. Rippeth, Tom P. Lenn, Yueng-Djern Timmermans, Mary Louise Williams, William J. Bacon, Sheldon Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean |
author_facet |
Lincoln, Ben J. Rippeth, Tom P. Lenn, Yueng-Djern Timmermans, Mary Louise Williams, William J. Bacon, Sheldon |
author_sort |
Lincoln, Ben J. |
title |
Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean |
title_short |
Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean |
title_full |
Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean |
title_fullStr |
Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean |
title_full_unstemmed |
Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean |
title_sort |
wind-driven mixing at intermediate depths in an ice-free arctic ocean |
publishDate |
2016 |
url |
https://eprints.soton.ac.uk/403103/ https://eprints.soton.ac.uk/403103/1/Lincoln_et_al-2016-Geophysical_Research_Letters.pdf |
geographic |
Arctic Arctic Ocean Canada Pacific |
geographic_facet |
Arctic Arctic Ocean Canada Pacific |
genre |
Arctic Arctic Arctic Ocean canada basin Climate change Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean canada basin Climate change Sea ice |
op_relation |
https://eprints.soton.ac.uk/403103/1/Lincoln_et_al-2016-Geophysical_Research_Letters.pdf Lincoln, Ben J., Rippeth, Tom P., Lenn, Yueng-Djern, Timmermans, Mary Louise, Williams, William J. and Bacon, Sheldon (2016) Wind-driven mixing at intermediate depths in an ice-free Arctic Ocean. Geophysical Research Letters, 43 (18), 9749-9756. (doi:10.1002/2016GL070454 <http://dx.doi.org/10.1002/2016GL070454>). |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1002/2016GL070454 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
18 |
container_start_page |
9749 |
op_container_end_page |
9756 |
_version_ |
1772810618089242624 |