NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation
The effect of the position of the Southern Hemisphere subpolar westerly winds (SWWs) on the thermo-haline circulation (THC) of the World Ocean is examined. The latitudes of zero wind stress curl position exert a strong control on the distribution of overturning between basins in the Northern Hemisph...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.684.4942 2023-05-15T17:25:26+02:00 NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation Willem P. Sijp Matthew H. England The Pennsylvania State University CiteSeerX Archives 2007 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.684.4942 http://web.science.unsw.edu.au/%7Ematthew/SE_winds_THC.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.684.4942 http://web.science.unsw.edu.au/%7Ematthew/SE_winds_THC.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://web.science.unsw.edu.au/%7Ematthew/SE_winds_THC.pdf text 2007 ftciteseerx 2016-01-08T18:03:24Z The effect of the position of the Southern Hemisphere subpolar westerly winds (SWWs) on the thermo-haline circulation (THC) of the World Ocean is examined. The latitudes of zero wind stress curl position exert a strong control on the distribution of overturning between basins in the Northern Hemisphere. A southward wind shift results in a stronger Atlantic THC and enhanced stratification in the North Pacific, whereas a northward wind shift leads to a significantly reduced Atlantic THC and the development of vigorous sinking (up to 1500-m depth) in the North Pacific. In other words, the Atlantic dominance of the meridional overturning circulation depends on the position of the zero wind stress curl over the Southern Ocean in the experiments. This position has a direct influence on the surface salinity contrast between the Pacific and the Atlantic, which is then further amplified by changes in the distribution of Northern Hemi-sphere sinking between these basins. The results show that the northward location of the SWW stress maximum inferred for the last glacial period may have contributed to significantly reduced North Atlantic Deep Water formation during this period, and perhaps an enhanced and deeper North Pacific THC. Also, a more poleward location of the SWW stress maximum in the current warming climate may entail stronger salinity stratification of the North Pacific. 1. Text North Atlantic Deep Water North Atlantic Southern Ocean Unknown Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Pacific Southern Ocean |
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Open Polar |
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ftciteseerx |
language |
English |
description |
The effect of the position of the Southern Hemisphere subpolar westerly winds (SWWs) on the thermo-haline circulation (THC) of the World Ocean is examined. The latitudes of zero wind stress curl position exert a strong control on the distribution of overturning between basins in the Northern Hemisphere. A southward wind shift results in a stronger Atlantic THC and enhanced stratification in the North Pacific, whereas a northward wind shift leads to a significantly reduced Atlantic THC and the development of vigorous sinking (up to 1500-m depth) in the North Pacific. In other words, the Atlantic dominance of the meridional overturning circulation depends on the position of the zero wind stress curl over the Southern Ocean in the experiments. This position has a direct influence on the surface salinity contrast between the Pacific and the Atlantic, which is then further amplified by changes in the distribution of Northern Hemi-sphere sinking between these basins. The results show that the northward location of the SWW stress maximum inferred for the last glacial period may have contributed to significantly reduced North Atlantic Deep Water formation during this period, and perhaps an enhanced and deeper North Pacific THC. Also, a more poleward location of the SWW stress maximum in the current warming climate may entail stronger salinity stratification of the North Pacific. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Willem P. Sijp Matthew H. England |
spellingShingle |
Willem P. Sijp Matthew H. England NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation |
author_facet |
Willem P. Sijp Matthew H. England |
author_sort |
Willem P. Sijp |
title |
NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation |
title_short |
NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation |
title_full |
NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation |
title_fullStr |
NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation |
title_full_unstemmed |
NOTES AND CORRESPONDENCE Southern Hemisphere Westerly Wind Control over the Ocean’s Thermohaline Circulation |
title_sort |
notes and correspondence southern hemisphere westerly wind control over the ocean’s thermohaline circulation |
publishDate |
2007 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.684.4942 http://web.science.unsw.edu.au/%7Ematthew/SE_winds_THC.pdf |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
geographic |
Curl Pacific Southern Ocean |
geographic_facet |
Curl Pacific Southern Ocean |
genre |
North Atlantic Deep Water North Atlantic Southern Ocean |
genre_facet |
North Atlantic Deep Water North Atlantic Southern Ocean |
op_source |
http://web.science.unsw.edu.au/%7Ematthew/SE_winds_THC.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.684.4942 http://web.science.unsw.edu.au/%7Ematthew/SE_winds_THC.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766116853825929216 |