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http://hdl.handle.net/10261/129516
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dc.contributor.author | Rosón, Gabriel | es_ES |
dc.contributor.author | Fernández-Guallart, E. | es_ES |
dc.contributor.author | Pérez, Fiz F. | es_ES |
dc.contributor.author | Ríos, Aida F. | es_ES |
dc.date.issued | 2016-06 | - |
dc.identifier.citation | Journal of Marine Systems 158: 45-51 (2016) | es_ES |
dc.identifier.issn | 0924-7963 | - |
dc.identifier.uri | http://hdl.handle.net/10261/129516 | - |
dc.description | 7 páginas, 1 tabla, 4 figuras | es_ES |
dc.description.abstract | This study constituted the first attempt to measure dissolved calcium ([Ca2 +]meas) in the subtropical North Atlantic, during a zonal transoceanic cruise along 24.5°N (WOCE A05 section), in summer 1992. [Ca2 +]meas was obtained in 20 full-depth equidistant stations along the section, showing that their gradients are rather sensitive to horizontal and vertical water mass distribution. Deep waters along 24.5°N systematically show a positive calcium excess of 20 ± 14 μmol·kg− 1, i.e., more [Ca2 +] than expected by CaCO3 dissolution and organic matter oxidation (estimated by total alkalinity and nitrate). CaCO3 settling and benthic dissolution accounts for 70% and the North Atlantic plus Arctic riverine inputs of HCO3− for the remaining 30%. Combining [Ca2 +]meas and CO2 data sets, carbonate mineral saturation states distributions for aragonite and calcite can be obtained. The two solubility ratios resulted, on average, 0.5% smaller than if conservative behavior for Ca2 + was assumed (an approach widely followed when [Ca2 +]meas is unknown). As a result, shallower saturation horizon depths for both carbonate states (19 dbar for aragonite and 10 dbar for calcite) are yielded if [Ca2 +]meas is taken into account instead than estimated from salinity | es_ES |
dc.description.sponsorship | This work has been performed under the project BOCATS (CTM2013-41048-P) supported by the Spanish Government and co-founded by the European Regional Development Fund (FEDER) | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2013-41048-P | - |
dc.relation.isversionof | Postprint | es_ES |
dc.rights | openAccess | en_EN |
dc.subject | Calcium | es_ES |
dc.subject | Alkalinity | es_ES |
dc.subject | Aragonite | es_ES |
dc.subject | Calcite | es_ES |
dc.subject | Seawater | es_ES |
dc.subject | North Atlantic | es_ES |
dc.title | Calcium distribution in the subtropical Atlantic Ocean: Implications for calcium excess and saturation horizons | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1016/j.jmarsys.2016.01.011 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/j.jmarsys.2016.01.011 | es_ES |
dc.identifier.e-issn | 1879-1573 | - |
dc.embargo.terms | 2018-06-01 | es_ES |
dc.rights.license | http://creativecommons.org/licenses/by-nc-nd/4.0/ | - |
dc.contributor.funder | Ministerio de Economía y Competitividad (España) | - |
dc.relation.csic | Sí | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003329 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.openairetype | artículo | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
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Calcium_distribution_subtropical.pdf | 1,68 MB | Adobe PDF | Visualizar/Abrir |
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