On the modulation of kinetic energy transfer by internal gravity waves
Understanding how kinetic energy (KE) is exchanged across scales and eventually dissipated remains a key question in physical oceanography. Recent theoretical works suggests that both quasi-balanced submesoscale motions and internal gravity waves (IGWs) could play a role in fluxing KE towards dissip...
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ftarchimer:oai:archimer.ifremer.fr:95238 2023-06-18T03:42:00+02:00 On the modulation of kinetic energy transfer by internal gravity waves Ajayi, Adekule Le Sommer, Julien Brodeau, Laurent Arbic, Brian Serazin, Guillaume Albert, Aurelie Uchida, Takaya Klein, Patrice 2022-01-31 application/pdf https://archimer.ifremer.fr/doc/00840/95238/102988.pdf https://doi.org/10.31223/X5204J https://archimer.ifremer.fr/doc/00840/95238/ eng eng California Digital Library (CDL) https://archimer.ifremer.fr/doc/00840/95238/102988.pdf doi:10.31223/X5204J https://archimer.ifremer.fr/doc/00840/95238/ info:eu-repo/semantics/openAccess restricted use EarthArXiv (California Digital Library (CDL)) In Press text Article info:eu-repo/semantics/article 2022 ftarchimer https://doi.org/10.31223/X5204J 2023-06-06T22:55:40Z Understanding how kinetic energy (KE) is exchanged across scales and eventually dissipated remains a key question in physical oceanography. Recent theoretical works suggests that both quasi-balanced submesoscale motions and internal gravity waves (IGWs) could play a role in fluxing KE towards dissipation. How these classes of motions actually provide a route to dissipation in the ocean is still debated. This study investigates the impact of IGWs generated by tidal motions on cross-scale KE exchanges at mid-latitude. Our analysis is based on the output of two realistic submesoscale permitting ocean model simulations of the North Atlantic Ocean, run respectively with and without tidal forcing. These twin experiments permit investigation of how tidally-forced IGWs modify the KE variance, cross-scale exchanges, and associated seasonality. Our results show that, in the presence of externally-forced IGWs, KE transfer towards dissipative scales is enhanced in summertime both at the surface and in the ocean interior. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
Understanding how kinetic energy (KE) is exchanged across scales and eventually dissipated remains a key question in physical oceanography. Recent theoretical works suggests that both quasi-balanced submesoscale motions and internal gravity waves (IGWs) could play a role in fluxing KE towards dissipation. How these classes of motions actually provide a route to dissipation in the ocean is still debated. This study investigates the impact of IGWs generated by tidal motions on cross-scale KE exchanges at mid-latitude. Our analysis is based on the output of two realistic submesoscale permitting ocean model simulations of the North Atlantic Ocean, run respectively with and without tidal forcing. These twin experiments permit investigation of how tidally-forced IGWs modify the KE variance, cross-scale exchanges, and associated seasonality. Our results show that, in the presence of externally-forced IGWs, KE transfer towards dissipative scales is enhanced in summertime both at the surface and in the ocean interior. |
format |
Article in Journal/Newspaper |
author |
Ajayi, Adekule Le Sommer, Julien Brodeau, Laurent Arbic, Brian Serazin, Guillaume Albert, Aurelie Uchida, Takaya Klein, Patrice |
spellingShingle |
Ajayi, Adekule Le Sommer, Julien Brodeau, Laurent Arbic, Brian Serazin, Guillaume Albert, Aurelie Uchida, Takaya Klein, Patrice On the modulation of kinetic energy transfer by internal gravity waves |
author_facet |
Ajayi, Adekule Le Sommer, Julien Brodeau, Laurent Arbic, Brian Serazin, Guillaume Albert, Aurelie Uchida, Takaya Klein, Patrice |
author_sort |
Ajayi, Adekule |
title |
On the modulation of kinetic energy transfer by internal gravity waves |
title_short |
On the modulation of kinetic energy transfer by internal gravity waves |
title_full |
On the modulation of kinetic energy transfer by internal gravity waves |
title_fullStr |
On the modulation of kinetic energy transfer by internal gravity waves |
title_full_unstemmed |
On the modulation of kinetic energy transfer by internal gravity waves |
title_sort |
on the modulation of kinetic energy transfer by internal gravity waves |
publisher |
California Digital Library (CDL) |
publishDate |
2022 |
url |
https://archimer.ifremer.fr/doc/00840/95238/102988.pdf https://doi.org/10.31223/X5204J https://archimer.ifremer.fr/doc/00840/95238/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
EarthArXiv (California Digital Library (CDL)) In Press |
op_relation |
https://archimer.ifremer.fr/doc/00840/95238/102988.pdf doi:10.31223/X5204J https://archimer.ifremer.fr/doc/00840/95238/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.31223/X5204J |
_version_ |
1769007754022748160 |