2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys
[1] We present the first direct evidence that interannual changes in ocean transport through Drake Passage are forced by variability in the Southern Annular Mode (SAM). This evidence is derived from two decades (1980s and 1990s) of subsurface pressure measurements from the tide gauge at Faraday stat...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.586.4924 2023-05-15T13:50:09+02:00 2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys Michael P. Meredith Philip L. Woodworth Chris W. Hughes Vladimir Stepanov The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.586.4924 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.586.4924 Metadata may be used without restrictions as long as the oai identifier remains attached to it. https://pangea.stanford.edu/research/Oceans/GES205/Meredith_GRL_Changes in ocean transport through Drake Passage.pdf L21305 doi 10.1029/2004GL021169 text ftciteseerx 2016-01-08T13:17:17Z [1] We present the first direct evidence that interannual changes in ocean transport through Drake Passage are forced by variability in the Southern Annular Mode (SAM). This evidence is derived from two decades (1980s and 1990s) of subsurface pressure measurements from the tide gauge at Faraday station (western Antarctic Peninsula), combined with the output of an ocean general circulation model. In recent decades, the SAM has moved toward a higher-index state (stronger circumpolar winds); this trend is not simply monotonic, but is the product of a long-term change in the seasonality of the SAM. Whilst we cannot address directly the effect of the long-term trend on circumpolar transport, bottom pressure data from Drake Passage during the 1990s demonstrate that ocean transport showed the same changes in seasonality as did the SAM. This offers a mechanism for atmospheric climate change to influence directly the large-scale ocean circulation. INDEX TERMS: 4207 Oceanography: Text Antarc* Antarctic Antarctic Peninsula Drake Passage Unknown Antarctic Antarctic Peninsula Drake Passage Faraday ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
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Open Polar |
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op_collection_id |
ftciteseerx |
language |
English |
topic |
L21305 doi 10.1029/2004GL021169 |
spellingShingle |
L21305 doi 10.1029/2004GL021169 Michael P. Meredith Philip L. Woodworth Chris W. Hughes Vladimir Stepanov 2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys |
topic_facet |
L21305 doi 10.1029/2004GL021169 |
description |
[1] We present the first direct evidence that interannual changes in ocean transport through Drake Passage are forced by variability in the Southern Annular Mode (SAM). This evidence is derived from two decades (1980s and 1990s) of subsurface pressure measurements from the tide gauge at Faraday station (western Antarctic Peninsula), combined with the output of an ocean general circulation model. In recent decades, the SAM has moved toward a higher-index state (stronger circumpolar winds); this trend is not simply monotonic, but is the product of a long-term change in the seasonality of the SAM. Whilst we cannot address directly the effect of the long-term trend on circumpolar transport, bottom pressure data from Drake Passage during the 1990s demonstrate that ocean transport showed the same changes in seasonality as did the SAM. This offers a mechanism for atmospheric climate change to influence directly the large-scale ocean circulation. INDEX TERMS: 4207 Oceanography: |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Michael P. Meredith Philip L. Woodworth Chris W. Hughes Vladimir Stepanov |
author_facet |
Michael P. Meredith Philip L. Woodworth Chris W. Hughes Vladimir Stepanov |
author_sort |
Michael P. Meredith |
title |
2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys |
title_short |
2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys |
title_full |
2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys |
title_fullStr |
2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys |
title_full_unstemmed |
2004), Changes in the ocean transport through Drake Passage during the 1980s and 1990s, forced by changes in the Southern Annular Mode, Geophys |
title_sort |
2004), changes in the ocean transport through drake passage during the 1980s and 1990s, forced by changes in the southern annular mode, geophys |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.586.4924 |
long_lat |
ENVELOPE(-64.256,-64.256,-65.246,-65.246) |
geographic |
Antarctic Antarctic Peninsula Drake Passage Faraday |
geographic_facet |
Antarctic Antarctic Peninsula Drake Passage Faraday |
genre |
Antarc* Antarctic Antarctic Peninsula Drake Passage |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Drake Passage |
op_source |
https://pangea.stanford.edu/research/Oceans/GES205/Meredith_GRL_Changes in ocean transport through Drake Passage.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.586.4924 |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766253120689537024 |