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dc.contributor.authorVélez-Belchí, Pedro  Concept link
dc.contributor.authorPerez-Hernandez, M. Dolores  Concept link
dc.contributor.authorCasanova-Masjoan, Maria  Concept link
dc.contributor.authorCana, Luis  Concept link
dc.contributor.authorHernández-Guerra, Alonso  Concept link
dc.date.accessioned2017-08-29T19:14:50Z
dc.date.available2017-12-01T10:16:41Z
dc.date.issued2017-06-01
dc.identifier.citationJournal of Geophysical Research: Oceans 122 (2017): 4518–4538en_US
dc.identifier.urihttps://hdl.handle.net/1912/9197
dc.descriptionAuthor Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 122 (2017): 4518–4538, doi:10.1002/2017JC012774.en_US
dc.description.abstractThe Atlantic Meridional Overturning Circulation (AMOC) is continually monitored along 26°N by the RAPID-MOCHA array. Measurements from this array show a 6.7 Sv seasonal cycle for the AMOC, with a 5.9 Sv contribution from the upper mid-ocean. Recent studies argue that the dynamics of the eastern Atlantic is the main driver for this seasonal cycle; specifically, Rossby waves excited south of the Canary Islands. Using inverse modeling, hydrographic, mooring, and altimetry data, we describe the seasonal cycle of the ocean mass transport around the Canary Islands and at the eastern boundary, under the influence of the African slope, where eastern component of the RAPID-MOCHA array is situated. We find a seasonal cycle of −4.1 ± 0.5 Sv for the oceanic region of the Canary Current, and +3.7 ± 0.4 Sv at the eastern boundary. This seasonal cycle along the eastern boundary is in agreement with the seasonal cycle of the AMOC that requires the lowest contribution to the transport in the upper mid-ocean to occur in fall. However, we demonstrate that the linear Rossby wave model used previously to explain the seasonal cycle of the AMOC is not robust, since it is extremely sensitive to the choice of the zonal range of the wind stress curl and produces the same results with a Rossby wave speed of zero. We demonstrate that the seasonal cycle of the eastern boundary is due to the recirculation of the Canary Current and to the seasonal cycle of the poleward flow that characterizes the eastern boundaries of the oceans.en_US
dc.description.sponsorshipRAPROCAN Project ; Instituto Español de Oceanografía; and as part of the SeVaCan project Grant Number: CTM2013-48695; Ministerio de Economía y Competividad; Apoyo al Personal Investigador en Formaciónen_US
dc.language.isoenen_US
dc.publisherJohn Wiley & Sonsen_US
dc.relation.urihttps://doi.org/10.1002/2017JC012774
dc.subjectCanary Currenten_US
dc.subjectAfrican slopeen_US
dc.subjectSeasonal cycleen_US
dc.subjectAtlantic Meridional Overturning Circulationen_US
dc.subjectRossby waveen_US
dc.titleOn the seasonal variability of the Canary Current and the Atlantic Meridional Overturning Circulationen_US
dc.typeArticleen_US
dc.description.embargo2017-12-01en_US
dc.identifier.doi10.1002/2017JC012774


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