Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale
The global ocean overturning circulation, critically dependent on the global density stratification, plays a central role in regulating climate evolution. While it is well known that the global stratification profile exhibits a strong dependence to Southern Ocean dynamics and in particular to wind a...
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ftunivsthongkong:oai:repository.hkust.edu.hk:1783.1-116481 2023-05-15T13:46:12+02:00 Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale Mak, Julian Marshall, David P. Madec, Gurvan Maddison, James R. 2022 https://repository.hkust.edu.hk/ir/Record/1783.1-116481 https://doi.org/10.1029/2021GL097259 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=49&rft.issue=8&rft.date=2022&rft.spage=1&rft.aulast=Mak&rft.aufirst=Julian&rft.atitle=Acute+sensitivity+of+global+ocean+circulation+and+heat+content+to+eddy+energy+dissipation+time-scale&rft.title=Geophysical+research+letters http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000782431200001 http://www.scopus.com/record/display.url?eid=2-s2.0-85128970500&origin=inward https://repository.hkust.edu.hk/ir/bitstream/1783.1-116481/1/116481-1.pdf English eng John Wiley and Sons Inc https://repository.hkust.edu.hk/ir/Record/1783.1-116481 Geophysical Research Letters, v. 49, (8), 28 April 2022, article number e2021GL097259 0094-8276 1944-8007 https://doi.org/10.1029/2021GL097259 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=49&rft.issue=8&rft.date=2022&rft.spage=1&rft.aulast=Mak&rft.aufirst=Julian&rft.atitle=Acute+sensitivity+of+global+ocean+circulation+and+heat+content+to+eddy+energy+dissipation+time-scale&rft.title=Geophysical+research+letters http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000782431200001 http://www.scopus.com/record/display.url?eid=2-s2.0-85128970500&origin=inward https://repository.hkust.edu.hk/ir/bitstream/1783.1-116481/1/116481-1.pdf Eddy energetics Article 2022 ftunivsthongkong https://doi.org/10.1029/2021GL097259 2022-09-02T00:07:54Z The global ocean overturning circulation, critically dependent on the global density stratification, plays a central role in regulating climate evolution. While it is well known that the global stratification profile exhibits a strong dependence to Southern Ocean dynamics and in particular to wind and buoyancy forcing, we demonstrate here that the stratification is also acutely sensitive to the mesoscale eddy energy dissipation timescale. Within the context of a global ocean circulation model with an energy constrained mesoscale eddy parameterization, it is shown that modest variations in the eddy energy dissipation timescale lead to significant variations in key metrics relating to ocean circulation, namely the Antarctic Circumpolar Current transport, Atlantic Meridional Overturning Circulation strength, and global ocean heat content, over long timescales. The results highlight a need to constrain uncertainties associated with eddy energy dissipation for climate model projections over centennial timescales and also for paleoclimate simulations over millennial timescales. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean The Hong Kong University of Science and Technology: HKUST Institutional Repository Antarctic Southern Ocean The Antarctic Geophysical Research Letters 49 8 |
institution |
Open Polar |
collection |
The Hong Kong University of Science and Technology: HKUST Institutional Repository |
op_collection_id |
ftunivsthongkong |
language |
English |
topic |
Eddy energetics |
spellingShingle |
Eddy energetics Mak, Julian Marshall, David P. Madec, Gurvan Maddison, James R. Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale |
topic_facet |
Eddy energetics |
description |
The global ocean overturning circulation, critically dependent on the global density stratification, plays a central role in regulating climate evolution. While it is well known that the global stratification profile exhibits a strong dependence to Southern Ocean dynamics and in particular to wind and buoyancy forcing, we demonstrate here that the stratification is also acutely sensitive to the mesoscale eddy energy dissipation timescale. Within the context of a global ocean circulation model with an energy constrained mesoscale eddy parameterization, it is shown that modest variations in the eddy energy dissipation timescale lead to significant variations in key metrics relating to ocean circulation, namely the Antarctic Circumpolar Current transport, Atlantic Meridional Overturning Circulation strength, and global ocean heat content, over long timescales. The results highlight a need to constrain uncertainties associated with eddy energy dissipation for climate model projections over centennial timescales and also for paleoclimate simulations over millennial timescales. |
format |
Article in Journal/Newspaper |
author |
Mak, Julian Marshall, David P. Madec, Gurvan Maddison, James R. |
author_facet |
Mak, Julian Marshall, David P. Madec, Gurvan Maddison, James R. |
author_sort |
Mak, Julian |
title |
Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale |
title_short |
Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale |
title_full |
Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale |
title_fullStr |
Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale |
title_full_unstemmed |
Acute Sensitivity of Global Ocean Circulation and Heat Content to Eddy Energy Dissipation Timescale |
title_sort |
acute sensitivity of global ocean circulation and heat content to eddy energy dissipation timescale |
publisher |
John Wiley and Sons Inc |
publishDate |
2022 |
url |
https://repository.hkust.edu.hk/ir/Record/1783.1-116481 https://doi.org/10.1029/2021GL097259 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=49&rft.issue=8&rft.date=2022&rft.spage=1&rft.aulast=Mak&rft.aufirst=Julian&rft.atitle=Acute+sensitivity+of+global+ocean+circulation+and+heat+content+to+eddy+energy+dissipation+time-scale&rft.title=Geophysical+research+letters http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000782431200001 http://www.scopus.com/record/display.url?eid=2-s2.0-85128970500&origin=inward https://repository.hkust.edu.hk/ir/bitstream/1783.1-116481/1/116481-1.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
https://repository.hkust.edu.hk/ir/Record/1783.1-116481 Geophysical Research Letters, v. 49, (8), 28 April 2022, article number e2021GL097259 0094-8276 1944-8007 https://doi.org/10.1029/2021GL097259 http://lbdiscover.ust.hk/uresolver?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rfr_id=info:sid/HKUST:SPI&rft.genre=article&rft.issn=&rft.volume=49&rft.issue=8&rft.date=2022&rft.spage=1&rft.aulast=Mak&rft.aufirst=Julian&rft.atitle=Acute+sensitivity+of+global+ocean+circulation+and+heat+content+to+eddy+energy+dissipation+time-scale&rft.title=Geophysical+research+letters http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000782431200001 http://www.scopus.com/record/display.url?eid=2-s2.0-85128970500&origin=inward https://repository.hkust.edu.hk/ir/bitstream/1783.1-116481/1/116481-1.pdf |
op_doi |
https://doi.org/10.1029/2021GL097259 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
8 |
_version_ |
1766238375981875200 |