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dc.contributor.authorFernández-Castro, B.es_ES
dc.contributor.authorÁlvarez, Martaes_ES
dc.contributor.authorNieto-Cid, Mares_ES
dc.contributor.authorZunino, P.es_ES
dc.contributor.authorMercier, Herlées_ES
dc.contributor.authorÁlvarez-Salgado, Xosé Antónes_ES
dc.identifier.citationGeophysical Research Letters 46(7): 3832-3842 (2019)es_ES
dc.description11 pages, 2 figureses_ES
dc.description.abstractDissolved organic matter (DOM) is produced in the surface and exported towards the deep ocean, adding ∼ 2 PgC/year to the global carbon export. Due to its central role in the Meridional Overturning Circulation, the eastern subpolar North Atlantic (eSPNA) contributes largely to this export. Here we quantify the transport and budget of dissolved organic nitrogen (DON) in the eSPNA, in a box delimited by the OVIDE 2002 section and the Greenland-Iceland-Scotland sills. The Meridional Overturning Circulation exports >15.9 TgN/year of DON downward and, contrary to the extended view that these are materials of subtropical origin, up to 33% of the vertical flux derives from a net local DON production of 7.1 ± 2.6 TgN/year. The low C:N molar ratio of DOM production (7.4 ± 4.1) and the relatively short transit times in the eSPNA (3 ± 1 year) suggest that local biogeochemical transformations result in the injection of fresh bioavailable DOM to the deep oceanes_ES
dc.description.sponsorshipB. F.-C. is supported by a Juan de La Cierva Formación fellowship (FJCI-641 2015-25712, Ministerio de Economía y Competitividad, Spanish Goverment). The OVIDE project was funded by the Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), the Centre National de la Recherche Scientifique (CNRS), the Institut National des Sciences de l'Universe (INSU), and the French National Program Les Enveloppes Fluides et l'Environnement (LEFE). Additional funding comes from the Spanish Government project REN2001-4965-E to X. A. Á.-Ses_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.isversionofPublisher's versiones_ES
dc.titleDissolved Organic Nitrogen Production and Export by Meridional Overturning in the Eastern Subpolar North Atlantices_ES
dc.description.peerreviewedPeer reviewedes_ES
oprm.item.hasRevisionno ko 0 false*
dc.contributor.orcidFernández-Castro, Bieito [0000-0001-7797-854X]es_ES
dc.contributor.orcidÁlvarez, Marta [0000-0002-5075-9344]es_ES
dc.contributor.orcidNieto-Cid, Mar [0000-0001-7614-4076]es_ES
dc.contributor.orcidZunino, P. [0000-0001-7057-7049]es_ES
dc.contributor.orcidMercier, Herlé [0000-0002-1940-617X]es_ES
dc.contributor.orcidÁlvarez-Salgado, Xosé Antón [0000-0002-2387-9201]es_ES
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