Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation
Surface buoyancy fluxes in the Southern and North Atlantic Oceans are presumed to disproportionately influence the ocean's residual global overturning circulation (GOC) with respect to those in the Indo‐Pacific. Here, this assumption is challenged through an assessment of global buoyancy transp...
Published in: | Geophysical Research Letters |
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American Geophysical Union
2018
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Online Access: | https://authors.library.caltech.edu/92092/ https://authors.library.caltech.edu/92092/1/Newsom_et_al-2018-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/92092/2/downloadSupplement_doi%3D10.1029%252F2018GL080350%26file%3Dgrl58236-sup-0001-Supplementary.pdf https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556 |
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ftcaltechauth:oai:authors.library.caltech.edu:92092 2023-05-15T17:32:28+02:00 Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation Newsom, Emily R. Thompson, Andrew F. 2018-11-28 application/pdf https://authors.library.caltech.edu/92092/ https://authors.library.caltech.edu/92092/1/Newsom_et_al-2018-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/92092/2/downloadSupplement_doi%3D10.1029%252F2018GL080350%26file%3Dgrl58236-sup-0001-Supplementary.pdf https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556 en eng American Geophysical Union https://authors.library.caltech.edu/92092/1/Newsom_et_al-2018-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/92092/2/downloadSupplement_doi%3D10.1029%252F2018GL080350%26file%3Dgrl58236-sup-0001-Supplementary.pdf Newsom, Emily R. and Thompson, Andrew F. (2018) Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation. Geophysical Research Letters, 45 (22). pp. 12422-12431. ISSN 0094-8276. doi:10.1029/2018gl080350. https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556 <https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556> other Article PeerReviewed 2018 ftcaltechauth https://doi.org/10.1029/2018gl080350 2021-11-18T18:49:03Z Surface buoyancy fluxes in the Southern and North Atlantic Oceans are presumed to disproportionately influence the ocean's residual global overturning circulation (GOC) with respect to those in the Indo‐Pacific. Here, this assumption is challenged through an assessment of global buoyancy transport in the Community Earth System Model 1.0, which reveals that the steady state GOC is equally constrained by surface buoyancy flux everywhere. Further, an unacknowledged aspect of the GOC is demonstrated: it transports buoyancy from where it is gained at the surface, predominately in the Indo‐Pacific, to where it is lost, predominately in the Atlantic and Southern Oceans. This global buoyancy transport requires zonal structure in the GOC, linking the Atlantic and Indo‐Pacific within the Southern Ocean, asymmetry and interbasin coupling absent from many conceptual descriptions of overturning dynamics. These results compel a more nuanced appreciation for an Indo‐Pacific influence in GOC evolution. Article in Journal/Newspaper North Atlantic Southern Ocean Caltech Authors (California Institute of Technology) Southern Ocean Pacific Geophysical Research Letters 45 22 |
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Open Polar |
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Caltech Authors (California Institute of Technology) |
op_collection_id |
ftcaltechauth |
language |
English |
description |
Surface buoyancy fluxes in the Southern and North Atlantic Oceans are presumed to disproportionately influence the ocean's residual global overturning circulation (GOC) with respect to those in the Indo‐Pacific. Here, this assumption is challenged through an assessment of global buoyancy transport in the Community Earth System Model 1.0, which reveals that the steady state GOC is equally constrained by surface buoyancy flux everywhere. Further, an unacknowledged aspect of the GOC is demonstrated: it transports buoyancy from where it is gained at the surface, predominately in the Indo‐Pacific, to where it is lost, predominately in the Atlantic and Southern Oceans. This global buoyancy transport requires zonal structure in the GOC, linking the Atlantic and Indo‐Pacific within the Southern Ocean, asymmetry and interbasin coupling absent from many conceptual descriptions of overturning dynamics. These results compel a more nuanced appreciation for an Indo‐Pacific influence in GOC evolution. |
format |
Article in Journal/Newspaper |
author |
Newsom, Emily R. Thompson, Andrew F. |
spellingShingle |
Newsom, Emily R. Thompson, Andrew F. Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation |
author_facet |
Newsom, Emily R. Thompson, Andrew F. |
author_sort |
Newsom, Emily R. |
title |
Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation |
title_short |
Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation |
title_full |
Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation |
title_fullStr |
Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation |
title_full_unstemmed |
Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation |
title_sort |
reassessing the role of the indo‐pacific in the ocean's global overturning circulation |
publisher |
American Geophysical Union |
publishDate |
2018 |
url |
https://authors.library.caltech.edu/92092/ https://authors.library.caltech.edu/92092/1/Newsom_et_al-2018-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/92092/2/downloadSupplement_doi%3D10.1029%252F2018GL080350%26file%3Dgrl58236-sup-0001-Supplementary.pdf https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556 |
geographic |
Southern Ocean Pacific |
geographic_facet |
Southern Ocean Pacific |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_relation |
https://authors.library.caltech.edu/92092/1/Newsom_et_al-2018-Geophysical_Research_Letters.pdf https://authors.library.caltech.edu/92092/2/downloadSupplement_doi%3D10.1029%252F2018GL080350%26file%3Dgrl58236-sup-0001-Supplementary.pdf Newsom, Emily R. and Thompson, Andrew F. (2018) Reassessing the Role of the Indo‐Pacific in the Ocean's Global Overturning Circulation. Geophysical Research Letters, 45 (22). pp. 12422-12431. ISSN 0094-8276. doi:10.1029/2018gl080350. https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556 <https://resolver.caltech.edu/CaltechAUTHORS:20190104-094928556> |
op_rights |
other |
op_doi |
https://doi.org/10.1029/2018gl080350 |
container_title |
Geophysical Research Letters |
container_volume |
45 |
container_issue |
22 |
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1766130616073453568 |