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Climatological coupling of the thermohaline decadal changes in Central Water of the Eastern North Atlantic

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dc.creator Pérez, Fiz F.
dc.creator Pollard, R. T.
dc.creator Read, J. F.
dc.creator Valencia, Victoriano
dc.creator Cabanas, J. M.
dc.creator Ríos, Aida F.
dc.date 2008-06-25T09:44:02Z
dc.date 2008-06-25T09:44:02Z
dc.date 2000
dc.date.accessioned 2017-01-31T01:48:27Z
dc.date.available 2017-01-31T01:48:27Z
dc.identifier Scientia Marina 64(3): 347-353 (2000)
dc.identifier 0214-8358 (print edition)
dc.identifier 1886-8134 (online edition)
dc.identifier http://hdl.handle.net/10261/5303
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/5303
dc.description Publicación online disponible en: http://www.icm.csic.es/scimar/index.php
dc.description Data collected at 42ºN, 10ºW in the intergyre region of the Northeast Atlantic show significant year to year variability in the T-S characteristics of the upper 800m of the water column. Taking salinity values on the sq = 27.1 kg m-3 isopycnal as representative of the Eastern North Atlantic Central Water mass it was found that the variability correlates well with the wind stress at 43ºN, 11ºW, with cumulative river discharge (which we take as an index of precipitation over the ocean) and with the NAO (which is an index of the strength and position of storm tracks and the state of the evaporation-precipitation balance). The covariation illustrates the close coupling between water mass formation and climate in the North Atlantic, where climate changes affect the deep ventilation by which ENACW is formed and the evaporation-precipitation balance from which the T-S signature results. Hints of a 20 year cycle in the ocean correlate with a 20 year periodicity in the NAO. It remains to be established whether there is a feedback mechanism by which water mass anomalies affect the climate and the intensity and variation of the NAO pattern, and the extent to which upper ocean observations can be used as an indicator of future climate trends.
dc.description Peer reviewed
dc.format 429287 bytes
dc.format application/pdf
dc.language eng
dc.publisher CSIC - Instituto de Ciencias del Mar (ICM)
dc.rights openAccess
dc.subject Decadal changes
dc.subject T-S
dc.subject North Atlantic
dc.subject NAO
dc.subject ENACW
dc.title Climatological coupling of the thermohaline decadal changes in Central Water of the Eastern North Atlantic
dc.type Artículo


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