fCO2sw variability in the Bay of Biscay during ECO cruises

11 páginas, 1 tabla, 5 figuras

Bibliographic Details
Authors: Padín, X. A., Castro, Carmen G., Ríos, Aida F., Pérez, Fiz F.
Format: article
Publication Date:2008
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/49658
Online Access:http://hdl.handle.net/10261/49658
Access Level:Open access
Keyword:Bay of biscay
Carbon dioxide
Air-sea flux
Seasonal variability
Ships of opportunity
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spelling fCO2sw variability in the Bay of Biscay during ECO cruisesPadín, X. A.Castro, Carmen G.Ríos, Aida F.Pérez, Fiz F.Bay of biscayCarbon dioxideAir-sea fluxSeasonal variabilityShips of opportunity11 páginas, 1 tabla, 5 figurasThe Bay of Biscay is part of the North Atlantic Ocean, the most important sink of CO2, and a subduction zone of mode waters that favours the entry of carbon to the ocean interior. To investigate the seasonal and interannual variability of CO2 uptake, continuous underway measurements of the partial pressure of CO2 at sea surface were performed along a commercial route between Vigo (Spain) and St. Nazaire (France). An unattended measuring system of CO2 fugacity (fCO2), with meteorological station, and temperature, salinity, oxygen and fluorescence sensors, was installed on board of ships of opportunity (RO-RO L’Audace and RO-RO Surprise). The dataset collected between December 2002 and December 2004 reported a significant interannual variability; mainly for the winter season. The noticeable increase of fCO2sw during the winter mixing period of 2004 was associated to biogeochemical differences related to nutrient ratios, phytoplankton activity and atmospheric CO2 uptake. Dividing the seasonal cycle into three periods, prebloom (October–February), bloom (March–May) and postbloom (June–September), the fCO2sw for the entire seasonal cycle was correctly predicted by empirical relationships with an error lower than 10 μatm in spite of the high interannual variability. The fCO2swvariability at seasonal scale was mainly controlled by processes of synthesis and remineralization of organic matter during prebloom and bloom periods whereas SST was the key parameter during postbloom period. The surface waters of the Bay of Biscay showed a clear role as atmospheric CO2 sink ranging from −2.7±2.8 (±0.3) to −0.08±0.41 (±0.04) mol C m−2 yr−1 (mean±standard deviation (±error)) throughout each complete period although CO2 release to atmosphere was also observed during short episodes of summer. Using the regular wind speed sources of CO2 fluxes estimation ranged from −1.3±1.7 (±0.1) to −2.4±2.7 (±0.1) mol C m−2 yr−1 at annual scale, exceeding the sink capacity of the nearby regions of the North Atlantic OceanPeer reviewedElsevier201220122008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/49658reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.csr.2008.01.004info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/496582026-05-22T06:33:51Z
dc.title.none.fl_str_mv fCO2sw variability in the Bay of Biscay during ECO cruises
title fCO2sw variability in the Bay of Biscay during ECO cruises
spellingShingle fCO2sw variability in the Bay of Biscay during ECO cruises
Padín, X. A.
Bay of biscay
Carbon dioxide
Air-sea flux
Seasonal variability
Ships of opportunity
title_short fCO2sw variability in the Bay of Biscay during ECO cruises
title_full fCO2sw variability in the Bay of Biscay during ECO cruises
title_fullStr fCO2sw variability in the Bay of Biscay during ECO cruises
title_full_unstemmed fCO2sw variability in the Bay of Biscay during ECO cruises
title_sort fCO2sw variability in the Bay of Biscay during ECO cruises
dc.creator.none.fl_str_mv Padín, X. A.
Castro, Carmen G.
Ríos, Aida F.
Pérez, Fiz F.
author Padín, X. A.
author_facet Padín, X. A.
Castro, Carmen G.
Ríos, Aida F.
Pérez, Fiz F.
author_role author
author2 Castro, Carmen G.
Ríos, Aida F.
Pérez, Fiz F.
author2_role author
author
author
dc.subject.none.fl_str_mv Bay of biscay
Carbon dioxide
Air-sea flux
Seasonal variability
Ships of opportunity
topic Bay of biscay
Carbon dioxide
Air-sea flux
Seasonal variability
Ships of opportunity
description 11 páginas, 1 tabla, 5 figuras
publishDate 2008
dc.date.none.fl_str_mv 2008
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/49658
url http://hdl.handle.net/10261/49658
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.csr.2008.01.004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869415975267336192
score 15.812429

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