Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation
A simple relationship, based on thermal wind balance, is derived that relates the relative strength of the Antarctic Circumpolar Current (ACC) and Atlantic Meridional Overturning Circulation (AMOC) to the ratios of three depth scales: the e-folding depth of the global stratification, the depth of ma...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Stockholm University Press
2017-01-01
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| Series: | Tellus: Series A, Dynamic Meteorology and Oceanography |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/16000870.2017.1338884 |
| _version_ | 1818040159976816640 |
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| author | David P. Marshall Helen L. Johnson |
| author_facet | David P. Marshall Helen L. Johnson |
| author_sort | David P. Marshall |
| collection | DOAJ |
| description | A simple relationship, based on thermal wind balance, is derived that relates the relative strength of the Antarctic Circumpolar Current (ACC) and Atlantic Meridional Overturning Circulation (AMOC) to the ratios of three depth scales: the e-folding depth of the global stratification, the depth of maximum overturning streamfunction and the maximum depth of the ACC. For realistic values of these depth scales, the relationship predicts a factor $ 8 \pm 4 $ difference in the volume transports of the ACC and AMOC, consistent with the observation-based ratio of $ 8 \pm 2 $. |
| first_indexed | 2024-12-10T08:10:06Z |
| format | Article |
| id | doaj.art-5ccffabbde6f4d29b6c6390e51c4ed6e |
| institution | Directory Open Access Journal |
| issn | 1600-0870 |
| language | English |
| last_indexed | 2024-12-10T08:10:06Z |
| publishDate | 2017-01-01 |
| publisher | Stockholm University Press |
| record_format | Article |
| series | Tellus: Series A, Dynamic Meteorology and Oceanography |
| spelling | doaj.art-5ccffabbde6f4d29b6c6390e51c4ed6e2022-12-22T01:56:35ZengStockholm University PressTellus: Series A, Dynamic Meteorology and Oceanography1600-08702017-01-0169110.1080/16000870.2017.13388841338884Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning CirculationDavid P. Marshall0Helen L. Johnson1University of OxfordUniversity of OxfordA simple relationship, based on thermal wind balance, is derived that relates the relative strength of the Antarctic Circumpolar Current (ACC) and Atlantic Meridional Overturning Circulation (AMOC) to the ratios of three depth scales: the e-folding depth of the global stratification, the depth of maximum overturning streamfunction and the maximum depth of the ACC. For realistic values of these depth scales, the relationship predicts a factor $ 8 \pm 4 $ difference in the volume transports of the ACC and AMOC, consistent with the observation-based ratio of $ 8 \pm 2 $.http://dx.doi.org/10.1080/16000870.2017.1338884ocean currentsvolume transportshydrographythermal windmeridional boundaries |
| spellingShingle | David P. Marshall Helen L. Johnson Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation Tellus: Series A, Dynamic Meteorology and Oceanography ocean currents volume transports hydrography thermal wind meridional boundaries |
| title | Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation |
| title_full | Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation |
| title_fullStr | Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation |
| title_full_unstemmed | Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation |
| title_short | Relative strength of the Antarctic Circumpolar Current and Atlantic Meridional Overturning Circulation |
| title_sort | relative strength of the antarctic circumpolar current and atlantic meridional overturning circulation |
| topic | ocean currents volume transports hydrography thermal wind meridional boundaries |
| url | http://dx.doi.org/10.1080/16000870.2017.1338884 |
| work_keys_str_mv | AT davidpmarshall relativestrengthoftheantarcticcircumpolarcurrentandatlanticmeridionaloverturningcirculation AT helenljohnson relativestrengthoftheantarcticcircumpolarcurrentandatlanticmeridionaloverturningcirculation |