Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean.
The transfer of momentum between the atmosphere and ocean is dependent upon the velocity difference between the seawater and overlying air. This is commonly known as relative wind, or ocean current interaction, and its direct effect is to damp mesoscale ocean eddies through the imposition of an oppo...
Published in: | Ocean Modelling |
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Language: | English |
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Elsevier
2021
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ftnerc:oai:nora.nerc.ac.uk:530439 2023-05-15T18:24:53+02:00 Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. Munday, David R. Zhai, Xiaoming Harle, James Coward, Andrew C. Nurser, A.J. George 2021-12 text http://nora.nerc.ac.uk/id/eprint/530439/ https://nora.nerc.ac.uk/id/eprint/530439/1/1-s2.0-S146350032100144X-main.pdf https://www.sciencedirect.com/science/article/pii/S146350032100144X en eng Elsevier https://nora.nerc.ac.uk/id/eprint/530439/1/1-s2.0-S146350032100144X-main.pdf Munday, David R. orcid:0000-0003-1920-708X Zhai, Xiaoming; Harle, James; Coward, Andrew C. orcid:0000-0002-9111-7700 Nurser, A.J. George. 2021 Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. Ocean Modelling, 168, 101891. 20, pp. https://doi.org/10.1016/j.ocemod.2021.101891 <https://doi.org/10.1016/j.ocemod.2021.101891> cc_by_4 CC-BY Publication - Article PeerReviewed 2021 ftnerc https://doi.org/10.1016/j.ocemod.2021.101891 2023-02-04T19:52:12Z The transfer of momentum between the atmosphere and ocean is dependent upon the velocity difference between the seawater and overlying air. This is commonly known as relative wind, or ocean current interaction, and its direct effect is to damp mesoscale ocean eddies through the imposition of an opposing surface torque. If an ocean model neglects the ocean velocity in its bulk formulae, this can lead to an increase in power input to the ocean and a large increase in Eddy Kinetic Energy (EKE). Other secondary effects that are dependent upon the current system under consideration may also occur. Here we show that the neglect of relative wind leads to an ~50% increase in surface EKE in a circumpolar model of the Southern Ocean. This acts to increase the southwards eddy heat transport, fluxing more heat into the seasonal ice zone, and subsequently reducing ice cover in all seasons. The net reduction in planetary albedo may be a way for a largescale impact on climate. Article in Journal/Newspaper Southern Ocean Natural Environment Research Council: NERC Open Research Archive Southern Ocean Ocean Modelling 168 101891 |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The transfer of momentum between the atmosphere and ocean is dependent upon the velocity difference between the seawater and overlying air. This is commonly known as relative wind, or ocean current interaction, and its direct effect is to damp mesoscale ocean eddies through the imposition of an opposing surface torque. If an ocean model neglects the ocean velocity in its bulk formulae, this can lead to an increase in power input to the ocean and a large increase in Eddy Kinetic Energy (EKE). Other secondary effects that are dependent upon the current system under consideration may also occur. Here we show that the neglect of relative wind leads to an ~50% increase in surface EKE in a circumpolar model of the Southern Ocean. This acts to increase the southwards eddy heat transport, fluxing more heat into the seasonal ice zone, and subsequently reducing ice cover in all seasons. The net reduction in planetary albedo may be a way for a largescale impact on climate. |
format |
Article in Journal/Newspaper |
author |
Munday, David R. Zhai, Xiaoming Harle, James Coward, Andrew C. Nurser, A.J. George |
spellingShingle |
Munday, David R. Zhai, Xiaoming Harle, James Coward, Andrew C. Nurser, A.J. George Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. |
author_facet |
Munday, David R. Zhai, Xiaoming Harle, James Coward, Andrew C. Nurser, A.J. George |
author_sort |
Munday, David R. |
title |
Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. |
title_short |
Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. |
title_full |
Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. |
title_fullStr |
Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. |
title_full_unstemmed |
Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. |
title_sort |
relative vs. absolute wind stress in a circumpolar model of the southern ocean. |
publisher |
Elsevier |
publishDate |
2021 |
url |
http://nora.nerc.ac.uk/id/eprint/530439/ https://nora.nerc.ac.uk/id/eprint/530439/1/1-s2.0-S146350032100144X-main.pdf https://www.sciencedirect.com/science/article/pii/S146350032100144X |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://nora.nerc.ac.uk/id/eprint/530439/1/1-s2.0-S146350032100144X-main.pdf Munday, David R. orcid:0000-0003-1920-708X Zhai, Xiaoming; Harle, James; Coward, Andrew C. orcid:0000-0002-9111-7700 Nurser, A.J. George. 2021 Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. Ocean Modelling, 168, 101891. 20, pp. https://doi.org/10.1016/j.ocemod.2021.101891 <https://doi.org/10.1016/j.ocemod.2021.101891> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.ocemod.2021.101891 |
container_title |
Ocean Modelling |
container_volume |
168 |
container_start_page |
101891 |
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1766205897307062272 |