Characterizing the Navidad current interannual variability using coastal altimetry
In this study, the Navidad current, which flows along the northern coast of Spain in winter, is observed and characterized using coastal altimetry data over the period 1992–2002. This coastal current, marked by a strong interannual variability, is associated with eastward transport of warm waters al...
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Online Access: | http://hdl.handle.net/10261/54815 https://doi.org/10.1007/s10236-010-0360-9 |
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ftcsic:oai:digital.csic.es:10261/54815 2024-02-11T10:06:33+01:00 Characterizing the Navidad current interannual variability using coastal altimetry Le Hénaff, Matthieu Roblou, Laurent Bouffard, Jérôme 2010-12-06 http://hdl.handle.net/10261/54815 https://doi.org/10.1007/s10236-010-0360-9 en eng Springer http://dx.doi.org/10.1007/s10236-010-0360-9 Ocean Dynamics 61(4):425-437 (2010) 1616-7341 http://hdl.handle.net/10261/54815 doi:10.1007/s10236-010-0360-9 1616-7228 none Navidad current Coastal altimetry Multi-sensor approach Remote sensing Eastern boundary current NAO index artículo http://purl.org/coar/resource_type/c_6501 2010 ftcsic https://doi.org/10.1007/s10236-010-0360-9 2024-01-16T09:40:03Z In this study, the Navidad current, which flows along the northern coast of Spain in winter, is observed and characterized using coastal altimetry data over the period 1992–2002. This coastal current, marked by a strong interannual variability, is associated with eastward transport of warm waters along the shelf slope. Specific data editing and processing strategies have been applied to the along-track altimeter data, which allows us to retrieve altimetric sea level anomalies closer to the coast, with a better spatial coverage and improved quality when compared with standard altimetric products. The current variability observed upstream by in situ time series after November 1996 is well reproduced by the satellite across-track surface geostrophic current anomalies up until September 1999; this agreement degrades later in time. The combined use of satellite-derived current anomalies and sea-surface temperature anomalies allows us to develop indices of Navidad occurrences, in the first long-term, systematic survey of that current based on a multi-sensor approach. The satellite analyses confirm the previously identified Navidad occurrences in winter of 1995–1996, 1997–1998, and 2000–2001. Furthermore, a weak Navidad event was identified in winter 1996–1997. These four winters are associated with a negative North Atlantic Oscillation index in the previous fall, but the intensity of the Navidad is not correlated to the amplitude of that index. Peer reviewed Article in Journal/Newspaper North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) Navidad ENVELOPE(-62.100,-62.100,-64.583,-64.583) Ocean Dynamics 61 4 425 437 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Navidad current Coastal altimetry Multi-sensor approach Remote sensing Eastern boundary current NAO index |
spellingShingle |
Navidad current Coastal altimetry Multi-sensor approach Remote sensing Eastern boundary current NAO index Le Hénaff, Matthieu Roblou, Laurent Bouffard, Jérôme Characterizing the Navidad current interannual variability using coastal altimetry |
topic_facet |
Navidad current Coastal altimetry Multi-sensor approach Remote sensing Eastern boundary current NAO index |
description |
In this study, the Navidad current, which flows along the northern coast of Spain in winter, is observed and characterized using coastal altimetry data over the period 1992–2002. This coastal current, marked by a strong interannual variability, is associated with eastward transport of warm waters along the shelf slope. Specific data editing and processing strategies have been applied to the along-track altimeter data, which allows us to retrieve altimetric sea level anomalies closer to the coast, with a better spatial coverage and improved quality when compared with standard altimetric products. The current variability observed upstream by in situ time series after November 1996 is well reproduced by the satellite across-track surface geostrophic current anomalies up until September 1999; this agreement degrades later in time. The combined use of satellite-derived current anomalies and sea-surface temperature anomalies allows us to develop indices of Navidad occurrences, in the first long-term, systematic survey of that current based on a multi-sensor approach. The satellite analyses confirm the previously identified Navidad occurrences in winter of 1995–1996, 1997–1998, and 2000–2001. Furthermore, a weak Navidad event was identified in winter 1996–1997. These four winters are associated with a negative North Atlantic Oscillation index in the previous fall, but the intensity of the Navidad is not correlated to the amplitude of that index. Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Le Hénaff, Matthieu Roblou, Laurent Bouffard, Jérôme |
author_facet |
Le Hénaff, Matthieu Roblou, Laurent Bouffard, Jérôme |
author_sort |
Le Hénaff, Matthieu |
title |
Characterizing the Navidad current interannual variability using coastal altimetry |
title_short |
Characterizing the Navidad current interannual variability using coastal altimetry |
title_full |
Characterizing the Navidad current interannual variability using coastal altimetry |
title_fullStr |
Characterizing the Navidad current interannual variability using coastal altimetry |
title_full_unstemmed |
Characterizing the Navidad current interannual variability using coastal altimetry |
title_sort |
characterizing the navidad current interannual variability using coastal altimetry |
publisher |
Springer |
publishDate |
2010 |
url |
http://hdl.handle.net/10261/54815 https://doi.org/10.1007/s10236-010-0360-9 |
long_lat |
ENVELOPE(-62.100,-62.100,-64.583,-64.583) |
geographic |
Navidad |
geographic_facet |
Navidad |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
http://dx.doi.org/10.1007/s10236-010-0360-9 Ocean Dynamics 61(4):425-437 (2010) 1616-7341 http://hdl.handle.net/10261/54815 doi:10.1007/s10236-010-0360-9 1616-7228 |
op_rights |
none |
op_doi |
https://doi.org/10.1007/s10236-010-0360-9 |
container_title |
Ocean Dynamics |
container_volume |
61 |
container_issue |
4 |
container_start_page |
425 |
op_container_end_page |
437 |
_version_ |
1790604338885820416 |