Interannual variability of wind power input to near-inertial motions in the North Atlantic
Near-inertial oscillations are ubiquitous in the ocean and are believed to play an important role in the global climate system. Studies on wind power input to near-inertial motions (WPI) have so far focused primarily on estimating the time-meanWPI, with little attention being paid to its temporal va...
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:58203 2023-05-15T17:27:21+02:00 Interannual variability of wind power input to near-inertial motions in the North Atlantic Dippe, Tina Zhai, Xiaoming Greatbatch, Richard J. Rath, Willi 2015 application/pdf https://ueaeprints.uea.ac.uk/id/eprint/58203/ https://ueaeprints.uea.ac.uk/id/eprint/58203/1/Dippe_et_al15.pdf https://doi.org/10.1007/s10236-015-0834-x en eng https://ueaeprints.uea.ac.uk/id/eprint/58203/1/Dippe_et_al15.pdf Dippe, Tina, Zhai, Xiaoming, Greatbatch, Richard J. and Rath, Willi (2015) Interannual variability of wind power input to near-inertial motions in the North Atlantic. Ocean Dynamics, 65 (6). pp. 859-875. ISSN 1616-7341 doi:10.1007/s10236-015-0834-x Article PeerReviewed 2015 ftuniveastangl https://doi.org/10.1007/s10236-015-0834-x 2023-01-30T21:43:27Z Near-inertial oscillations are ubiquitous in the ocean and are believed to play an important role in the global climate system. Studies on wind power input to near-inertial motions (WPI) have so far focused primarily on estimating the time-meanWPI, with little attention being paid to its temporal variability. In this study, a combination of atmospheric reanalysis products, a high-resolution ocean model and linear regression models are used to investigate for the first time the relationship between interannual variability of WPI in the North Atlantic and the North Atlantic Oscillation (NAO), motivated by the idea that the NAO serves as a good indicator for storminess over the North Atlantic and that storms account for the majority of WPI. It is found that WPI at low and high latitudes of the North Atlantic is significantly correlated to the NAO, owing to its influence on the configuration of the storm track. Positive (negative) NAO conditions are associated with increased WPI in the subpolar (subtropical) ocean. Basin-wide WPI is found to be significantly enhanced under negative NAO conditions, but is not significantly different from the climatological average under positive NAO conditions. This indicates a weak inverse relationship between basin-wide WPI and the NAO, contradicting intuitive expectations. The asymmetric impact of the NAO on basin-wide WPI results from greater sensitivity of WPI to near-inertial wind forcing at lower latitudes due to the variation of the Coriolis parameter with latitude. Article in Journal/Newspaper North Atlantic North Atlantic oscillation University of East Anglia: UEA Digital Repository Ocean Dynamics 65 6 859 875 |
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Open Polar |
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University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
English |
description |
Near-inertial oscillations are ubiquitous in the ocean and are believed to play an important role in the global climate system. Studies on wind power input to near-inertial motions (WPI) have so far focused primarily on estimating the time-meanWPI, with little attention being paid to its temporal variability. In this study, a combination of atmospheric reanalysis products, a high-resolution ocean model and linear regression models are used to investigate for the first time the relationship between interannual variability of WPI in the North Atlantic and the North Atlantic Oscillation (NAO), motivated by the idea that the NAO serves as a good indicator for storminess over the North Atlantic and that storms account for the majority of WPI. It is found that WPI at low and high latitudes of the North Atlantic is significantly correlated to the NAO, owing to its influence on the configuration of the storm track. Positive (negative) NAO conditions are associated with increased WPI in the subpolar (subtropical) ocean. Basin-wide WPI is found to be significantly enhanced under negative NAO conditions, but is not significantly different from the climatological average under positive NAO conditions. This indicates a weak inverse relationship between basin-wide WPI and the NAO, contradicting intuitive expectations. The asymmetric impact of the NAO on basin-wide WPI results from greater sensitivity of WPI to near-inertial wind forcing at lower latitudes due to the variation of the Coriolis parameter with latitude. |
format |
Article in Journal/Newspaper |
author |
Dippe, Tina Zhai, Xiaoming Greatbatch, Richard J. Rath, Willi |
spellingShingle |
Dippe, Tina Zhai, Xiaoming Greatbatch, Richard J. Rath, Willi Interannual variability of wind power input to near-inertial motions in the North Atlantic |
author_facet |
Dippe, Tina Zhai, Xiaoming Greatbatch, Richard J. Rath, Willi |
author_sort |
Dippe, Tina |
title |
Interannual variability of wind power input to near-inertial motions in the North Atlantic |
title_short |
Interannual variability of wind power input to near-inertial motions in the North Atlantic |
title_full |
Interannual variability of wind power input to near-inertial motions in the North Atlantic |
title_fullStr |
Interannual variability of wind power input to near-inertial motions in the North Atlantic |
title_full_unstemmed |
Interannual variability of wind power input to near-inertial motions in the North Atlantic |
title_sort |
interannual variability of wind power input to near-inertial motions in the north atlantic |
publishDate |
2015 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/58203/ https://ueaeprints.uea.ac.uk/id/eprint/58203/1/Dippe_et_al15.pdf https://doi.org/10.1007/s10236-015-0834-x |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://ueaeprints.uea.ac.uk/id/eprint/58203/1/Dippe_et_al15.pdf Dippe, Tina, Zhai, Xiaoming, Greatbatch, Richard J. and Rath, Willi (2015) Interannual variability of wind power input to near-inertial motions in the North Atlantic. Ocean Dynamics, 65 (6). pp. 859-875. ISSN 1616-7341 doi:10.1007/s10236-015-0834-x |
op_doi |
https://doi.org/10.1007/s10236-015-0834-x |
container_title |
Ocean Dynamics |
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65 |
container_issue |
6 |
container_start_page |
859 |
op_container_end_page |
875 |
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1766119397885214720 |