2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N
transport variability likely influences deep convection intensity in the Labrador and Irminger Seas but is poorly known yet. The EGIC transport west of the 2000 m isobath was estimated, for the first time, between 1992 and 2009 by combining surface geostrophic velocities derived from altimetry with...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.431.8478 2023-05-15T16:03:49+02:00 2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N N. Daniault H. Mercier P. Lherminier The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.8478 http://www.leif.org/EOS/2011GL046863.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.8478 http://www.leif.org/EOS/2011GL046863.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.leif.org/EOS/2011GL046863.pdf doi 10.1029/2011GL046863 text ftciteseerx 2016-01-08T04:43:08Z transport variability likely influences deep convection intensity in the Labrador and Irminger Seas but is poorly known yet. The EGIC transport west of the 2000 m isobath was estimated, for the first time, between 1992 and 2009 by combining surface geostrophic velocities derived from altimetry with an estimate of the vertical structure of the transport variability statistically determined from a moored array deployed in 2004–2006. The reconstructed 17‐year time series of the EGIC transport was then validated against independent estimates confirming that, indeed, the vertical distribution of the EGIC variability has not changed significantly over the last two decades. The 1992–2009 mean transport is 19.5 Sv with a standard error of 0.3 Sv (1 Sv = 10 6 m 3 s −1). In 1992–1996, the EGIC transport was close to the average. Over the following decade (1997–2005), the EGIC transport declined by 3 Sv (15%) so that the 2004–2006 mean transport inferred from the moored array is 2.2 Sv (10%) less than the 1992–2009 mean. It was followed by a period of higher transport. The seasonal to interannual transport variability is coherent with the variability of the windstress curl at the center of the Irminger Sea. Text East Greenland Greenland Unknown Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Greenland Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) |
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Open Polar |
collection |
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op_collection_id |
ftciteseerx |
language |
English |
topic |
doi 10.1029/2011GL046863 |
spellingShingle |
doi 10.1029/2011GL046863 N. Daniault H. Mercier P. Lherminier 2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N |
topic_facet |
doi 10.1029/2011GL046863 |
description |
transport variability likely influences deep convection intensity in the Labrador and Irminger Seas but is poorly known yet. The EGIC transport west of the 2000 m isobath was estimated, for the first time, between 1992 and 2009 by combining surface geostrophic velocities derived from altimetry with an estimate of the vertical structure of the transport variability statistically determined from a moored array deployed in 2004–2006. The reconstructed 17‐year time series of the EGIC transport was then validated against independent estimates confirming that, indeed, the vertical distribution of the EGIC variability has not changed significantly over the last two decades. The 1992–2009 mean transport is 19.5 Sv with a standard error of 0.3 Sv (1 Sv = 10 6 m 3 s −1). In 1992–1996, the EGIC transport was close to the average. Over the following decade (1997–2005), the EGIC transport declined by 3 Sv (15%) so that the 2004–2006 mean transport inferred from the moored array is 2.2 Sv (10%) less than the 1992–2009 mean. It was followed by a period of higher transport. The seasonal to interannual transport variability is coherent with the variability of the windstress curl at the center of the Irminger Sea. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
N. Daniault H. Mercier P. Lherminier |
author_facet |
N. Daniault H. Mercier P. Lherminier |
author_sort |
N. Daniault |
title |
2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N |
title_short |
2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N |
title_full |
2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N |
title_fullStr |
2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N |
title_full_unstemmed |
2011: The 1992-2009 transport variability of the East Greenland-Irminger Current at 60 degrees N |
title_sort |
2011: the 1992-2009 transport variability of the east greenland-irminger current at 60 degrees n |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.8478 http://www.leif.org/EOS/2011GL046863.pdf |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Curl Greenland Irminger Sea |
geographic_facet |
Curl Greenland Irminger Sea |
genre |
East Greenland Greenland |
genre_facet |
East Greenland Greenland |
op_source |
http://www.leif.org/EOS/2011GL046863.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.431.8478 http://www.leif.org/EOS/2011GL046863.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766399504633823232 |