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 |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://ueaeprints.uea.ac.uk/id/eprint/81542/ https://ueaeprints.uea.ac.uk/id/eprint/81542/7/Published_Version.pdf https://doi.org/10.1016/j.ocemod.2021.101891 |
id |
ftuniveastangl:oai:ueaeprints.uea.ac.uk:81542 |
---|---|
record_format |
openpolar |
spelling |
ftuniveastangl:oai:ueaeprints.uea.ac.uk:81542 2023-05-15T18:24:54+02:00 Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean Munday, David R. Zhai, Xiaoming Harle, James Coward (SOC), Andrew Nurser, A. J. George 2021-12 application/pdf https://ueaeprints.uea.ac.uk/id/eprint/81542/ https://ueaeprints.uea.ac.uk/id/eprint/81542/7/Published_Version.pdf https://doi.org/10.1016/j.ocemod.2021.101891 en eng https://ueaeprints.uea.ac.uk/id/eprint/81542/7/Published_Version.pdf Munday, David R., Zhai, Xiaoming, Harle, James, Coward (SOC), Andrew and Nurser, A. J. George (2021) Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. Ocean Modelling, 168. ISSN 1463-5003 doi:10.1016/j.ocemod.2021.101891 cc_by CC-BY Article PeerReviewed 2021 ftuniveastangl https://doi.org/10.1016/j.ocemod.2021.101891 2023-01-30T21:55:47Z 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 University of East Anglia: UEA Digital Repository Southern Ocean Ocean Modelling 168 101891 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
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 (SOC), Andrew Nurser, A. J. George |
spellingShingle |
Munday, David R. Zhai, Xiaoming Harle, James Coward (SOC), Andrew 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 (SOC), Andrew 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 |
publishDate |
2021 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/81542/ https://ueaeprints.uea.ac.uk/id/eprint/81542/7/Published_Version.pdf https://doi.org/10.1016/j.ocemod.2021.101891 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://ueaeprints.uea.ac.uk/id/eprint/81542/7/Published_Version.pdf Munday, David R., Zhai, Xiaoming, Harle, James, Coward (SOC), Andrew and Nurser, A. J. George (2021) Relative vs. absolute wind stress in a circumpolar model of the Southern Ocean. Ocean Modelling, 168. ISSN 1463-5003 doi:10.1016/j.ocemod.2021.101891 |
op_rights |
cc_by |
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 |
_version_ |
1766205921761951744 |