Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model
Our current understanding of the global meridional overturning circulation (GMOC) is revisited using a surface-forced ocean model simulation constrained by global hydrographic data. The derived GMOC is qualitatively consistent with previous observation-based studies and further provides enhanced spa...
Published in: | Geophysical Research Letters |
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Language: | English |
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2019
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Online Access: | https://doi.org/10.1029/2018GL080940 |
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ftncar:oai:drupal-site.org:articles_22445 2023-07-30T04:06:45+02:00 Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model Lee, Sang-Ki (author) Lumpkin, Rick (author) Baringer, Molly O. (author) Meinen, Christopher S. (author) Goes, Marlos (author) Dong, Shenfu (author) Lopez, Hosmay (author) Yeager, Stephen G. (author) 2019-02-16 https://doi.org/10.1029/2018GL080940 en eng Geophysical Research Letters--Geophys. Res. Lett.--00948276 articles:22445 ark:/85065/d7cn76zs doi:10.1029/2018GL080940 Copyright 2019 American Geophysical Union. article Text 2019 ftncar https://doi.org/10.1029/2018GL080940 2023-07-17T18:25:50Z Our current understanding of the global meridional overturning circulation (GMOC) is revisited using a surface-forced ocean model simulation constrained by global hydrographic data. The derived GMOC is qualitatively consistent with previous observation-based studies and further provides enhanced spatial details in the sources, transformations, and transports of major global water masses including in poorly observed regions. Several important but relatively underexplored aspects of the GMOC are highlighted, including complex but vigorous heavy-to-light water mass transformation that occurs in the Indo-Pacific and Southern Oceans, and the role of the equatorial Pacific upwelling in closing the GMOC circuit. These and other key aspects of the GMOC are poorly captured in a surface-forced ocean model simulation without the temperature and salinity corrections, suggesting that current climate models do not realistically simulate the GMOC and the associated global heat, salt, and carbon balances. Article in Journal/Newspaper Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Pacific Geophysical Research Letters 46 3 1521 1530 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Our current understanding of the global meridional overturning circulation (GMOC) is revisited using a surface-forced ocean model simulation constrained by global hydrographic data. The derived GMOC is qualitatively consistent with previous observation-based studies and further provides enhanced spatial details in the sources, transformations, and transports of major global water masses including in poorly observed regions. Several important but relatively underexplored aspects of the GMOC are highlighted, including complex but vigorous heavy-to-light water mass transformation that occurs in the Indo-Pacific and Southern Oceans, and the role of the equatorial Pacific upwelling in closing the GMOC circuit. These and other key aspects of the GMOC are poorly captured in a surface-forced ocean model simulation without the temperature and salinity corrections, suggesting that current climate models do not realistically simulate the GMOC and the associated global heat, salt, and carbon balances. |
author2 |
Lee, Sang-Ki (author) Lumpkin, Rick (author) Baringer, Molly O. (author) Meinen, Christopher S. (author) Goes, Marlos (author) Dong, Shenfu (author) Lopez, Hosmay (author) Yeager, Stephen G. (author) |
format |
Article in Journal/Newspaper |
title |
Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
spellingShingle |
Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
title_short |
Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
title_full |
Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
title_fullStr |
Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
title_full_unstemmed |
Global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
title_sort |
global meridional overturning circulation inferred from a data-constrained ocean & sea-ice model |
publishDate |
2019 |
url |
https://doi.org/10.1029/2018GL080940 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
Geophysical Research Letters--Geophys. Res. Lett.--00948276 articles:22445 ark:/85065/d7cn76zs doi:10.1029/2018GL080940 |
op_rights |
Copyright 2019 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2018GL080940 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
3 |
container_start_page |
1521 |
op_container_end_page |
1530 |
_version_ |
1772819648022052864 |