Antarctic Circumpolar Current impacts on internal wave life cycles
Major gaps exist in our understanding of the pathways between internal wave generation and breaking in the Southern Ocean, with important implications for the distribution of internal wave‐driven mixing, the sensitivity of ocean mixing rates and patterns to changes in the ocean environment, and the...
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Online Access: | https://doi.org/10.1029/2020GL089471 http://ecite.utas.edu.au/144212 |
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ftunivtasecite:oai:ecite.utas.edu.au:144212 2023-05-15T13:42:40+02:00 Antarctic Circumpolar Current impacts on internal wave life cycles Waterman, S Meyer, A Polzin, KL Naveira Garabato, AC Sheen, KL 2021 application/pdf https://doi.org/10.1029/2020GL089471 http://ecite.utas.edu.au/144212 en eng Amer Geophysical Union http://ecite.utas.edu.au/144212/1/144212 - Antarctic Circumpolar Current impacts on internal wave life cycles.pdf http://dx.doi.org/10.1029/2020GL089471 http://purl.org/au-research/grants/arc/CE170100023 Waterman, S and Meyer, A and Polzin, KL and Naveira Garabato, AC and Sheen, KL, Antarctic Circumpolar Current impacts on internal wave life cycles, Geophysical Research Letters, 48, (8) Article e2020GL089471. ISSN 0094-8276 (2021) [Refereed Article] http://ecite.utas.edu.au/144212 Earth Sciences Oceanography Physical oceanography Refereed Article PeerReviewed 2021 ftunivtasecite https://doi.org/10.1029/2020GL089471 2022-08-30T09:11:43Z Major gaps exist in our understanding of the pathways between internal wave generation and breaking in the Southern Ocean, with important implications for the distribution of internal wave‐driven mixing, the sensitivity of ocean mixing rates and patterns to changes in the ocean environment, and the necessary ingredients of mixing parameterizations. Here we assess the dominant processes in internal wave evolution by characterizing wave and mesoscale flow scales based on full‐depth in situ measurements in a Southern Ocean mixing hot spot and a ray tracing calculation. The exercise highlights the importance of Antarctic Circumpolar Current jets as a dominant influence on internal wave life cycles through advection, the modification of wave characteristics via wave‐mean flow interactions, and the set‐up of critical layers for both upward‐ and downward‐propagating waves. Our findings suggest that it is important to represent mesoscale flow impacts in parameterizations of internal wave‐driven mixing in the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean eCite UTAS (University of Tasmania) Antarctic Southern Ocean Geophysical Research Letters 48 8 |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
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English |
topic |
Earth Sciences Oceanography Physical oceanography |
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Earth Sciences Oceanography Physical oceanography Waterman, S Meyer, A Polzin, KL Naveira Garabato, AC Sheen, KL Antarctic Circumpolar Current impacts on internal wave life cycles |
topic_facet |
Earth Sciences Oceanography Physical oceanography |
description |
Major gaps exist in our understanding of the pathways between internal wave generation and breaking in the Southern Ocean, with important implications for the distribution of internal wave‐driven mixing, the sensitivity of ocean mixing rates and patterns to changes in the ocean environment, and the necessary ingredients of mixing parameterizations. Here we assess the dominant processes in internal wave evolution by characterizing wave and mesoscale flow scales based on full‐depth in situ measurements in a Southern Ocean mixing hot spot and a ray tracing calculation. The exercise highlights the importance of Antarctic Circumpolar Current jets as a dominant influence on internal wave life cycles through advection, the modification of wave characteristics via wave‐mean flow interactions, and the set‐up of critical layers for both upward‐ and downward‐propagating waves. Our findings suggest that it is important to represent mesoscale flow impacts in parameterizations of internal wave‐driven mixing in the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Waterman, S Meyer, A Polzin, KL Naveira Garabato, AC Sheen, KL |
author_facet |
Waterman, S Meyer, A Polzin, KL Naveira Garabato, AC Sheen, KL |
author_sort |
Waterman, S |
title |
Antarctic Circumpolar Current impacts on internal wave life cycles |
title_short |
Antarctic Circumpolar Current impacts on internal wave life cycles |
title_full |
Antarctic Circumpolar Current impacts on internal wave life cycles |
title_fullStr |
Antarctic Circumpolar Current impacts on internal wave life cycles |
title_full_unstemmed |
Antarctic Circumpolar Current impacts on internal wave life cycles |
title_sort |
antarctic circumpolar current impacts on internal wave life cycles |
publisher |
Amer Geophysical Union |
publishDate |
2021 |
url |
https://doi.org/10.1029/2020GL089471 http://ecite.utas.edu.au/144212 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://ecite.utas.edu.au/144212/1/144212 - Antarctic Circumpolar Current impacts on internal wave life cycles.pdf http://dx.doi.org/10.1029/2020GL089471 http://purl.org/au-research/grants/arc/CE170100023 Waterman, S and Meyer, A and Polzin, KL and Naveira Garabato, AC and Sheen, KL, Antarctic Circumpolar Current impacts on internal wave life cycles, Geophysical Research Letters, 48, (8) Article e2020GL089471. ISSN 0094-8276 (2021) [Refereed Article] http://ecite.utas.edu.au/144212 |
op_doi |
https://doi.org/10.1029/2020GL089471 |
container_title |
Geophysical Research Letters |
container_volume |
48 |
container_issue |
8 |
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1766171224937857024 |