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Campo DC | Valor | Lengua/Idioma |
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dc.contributor.author | Pérez, Fiz F. | - |
dc.contributor.author | Álvarez-Rodríguez, Marta | - |
dc.contributor.author | Ríos, Aida F. | - |
dc.date.accessioned | 2012-07-04T07:04:54Z | - |
dc.date.available | 2012-07-04T07:04:54Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Deep Sea Research - Part I - Oceanographic Research Papers 49(5): 869-875 (2002) | es_ES |
dc.identifier.issn | 0967-0637 | - |
dc.identifier.uri | http://hdl.handle.net/10261/52746 | - |
dc.description | 17 páginas. 3 tablas, 5 figuras | es_ES |
dc.description.abstract | The back-calculation technique for evaluating the anthropogenic CO2 (CANT) input corrects total inorganic carbon for the remineralisation of organic matter and the dissolution of calcium carbonate, along with subtracting the pre-industrial equilibrium total inorganic carbon. This technique is mainly dependent on the estimation of the preformed values of total alkalinity, oxygen and partial pressure of CO2 (pCO2). A new approach for estimating the preformed alkalinity (TA0) in the North Atlantic Ocean is suggested. TA0 is parameterised as a function of the inorganic to organic carbon decomposition ratio in the water column in agreement with sediment trap data and a recent review by Milliman et al. (Deep-Sea Res. I 46 (1999) 1653), which gives evidence for a considerable calcium carbonate dissolution in the upper 500–1000 m of the ocean, above the lysocline. We recalculated the CANT content in a section along the Eastern North Atlantic (OacesNAtlIIB-93) using this new TA0, the Mehrbach et al. (Limnol. Oceanogr. 8 (1973) 897) CO2 dissociation constants, and including the effect of water vapour pressure on estimation of the pre-industrial pCO2. Our findings lead us to conclude that the CO2 disequilibrium when water masses are formed is small and not significant. Direct and indirect evidence based on available high-quality CO2 data taken in formation areas in late winter conditions support this argument. | es_ES |
dc.description.sponsorship | M. Alvarez was financed by the ‘‘Xunta de Galicia’’ with a predoctoral grant. This work was supported by grant number CICYT-MAR97-0660. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | openAccess | es_ES |
dc.subject | Anthropogenic carbon | es_ES |
dc.subject | Performed alkalinity | es_ES |
dc.subject | North atlantic ocean | es_ES |
dc.subject | CO2 disequilibrium | es_ES |
dc.title | Improvements on the back-calculation technique for estimating anthropogenic CO2 | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1016/S0967-0637(02)00002-X | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1016/S0967-0637(02)00002-X | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
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Improvements_back_calculation_technique.pdf | 247,2 kB | Adobe PDF | Visualizar/Abrir |
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