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dc.contributor.authorManizza, Manfredi  Concept link
dc.contributor.authorFollows, Michael J.  Concept link
dc.contributor.authorDutkiewicz, Stephanie  Concept link
dc.contributor.authorMenemenlis, Dimitris  Concept link
dc.contributor.authorMcClelland, James W.  Concept link
dc.contributor.authorHill, C. N.  Concept link
dc.contributor.authorPeterson, Bruce J.  Concept link
dc.contributor.authorKey, Robert M.  Concept link
dc.date.accessioned2012-01-23T20:34:21Z
dc.date.available2014-10-22T08:57:24Z
dc.date.issued2011-12-15
dc.identifier.citationJournal of Geophysical Research 116 (2011): C12020en_US
dc.identifier.urihttps://hdl.handle.net/1912/4990
dc.descriptionAuthor Posting. © American Geophysical Union, 2011. 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 116 (2011): C12020, doi:10.1029/2011JC006998.en_US
dc.description.abstractA three dimensional model of Arctic Ocean circulation and mixing, with a horizontal resolution of 18 km, is overlain by a biogeochemical model resolving the physical, chemical and biological transport and transformations of phosphorus, alkalinity, oxygen and carbon, including the air-sea exchange of dissolved gases and the riverine delivery of dissolved organic carbon. The model qualitatively captures the observed regional and seasonal trends in surface ocean PO4, dissolved inorganic carbon, total alkalinity, and pCO2. Integrated annually, over the basin, the model suggests a net annual uptake of 59 Tg C a−1, within the range of published estimates based on the extrapolation of local observations (20–199 Tg C a−1). This flux is attributable to the cooling (increasing solubility) of waters moving into the basin, mainly from the subpolar North Atlantic. The air-sea flux is regulated seasonally and regionally by sea-ice cover, which modulates both air-sea gas transfer and the photosynthetic production of organic matter, and by the delivery of riverine dissolved organic carbon (RDOC), which drive the regional contrasts in pCO2 between Eurasian and North American coastal waters. Integrated over the basin, the delivery and remineralization of RDOC reduces the net oceanic CO2 uptake by ~10%.en_US
dc.description.sponsorshipThis study has been carried out as part of ECCO2 and SASS (Synthesis of the Arctic System Science) projects funded by NASA and NSF, respectively. MM and MJF are grateful for support from the National Science Foundation (ARC-0531119 and ARC-0806229) for financial support. MM also acknowledges NASA for providing computer time, the use of the computing facilities at NAS center and also the Scripps post-doctoral program for further financial support that helped to complete the manuscript. RMK also acknowledges NOAA for support (NA08OAR4310820 and NA08OAR4320752).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttps://doi.org/10.1029/2011JC006998
dc.subjectAir-sea gas exchangeen_US
dc.subjectBiogeochemical cyclesen_US
dc.subjectLand-ocean couplingen_US
dc.subjectNumerical modelingen_US
dc.subjectOcean carbon cycleen_US
dc.subjectPolar oceansen_US
dc.titleA model of the Arctic Ocean carbon cycleen_US
dc.typeArticleen_US
dc.description.embargo2012-06-15
dc.identifier.doi10.1029/2011JC006998


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