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dc.contributor.authorJin, X.
dc.contributor.authorNajjar, Raymond G.
dc.contributor.authorLouanchi, F.
dc.contributor.authorDoney, Scott C.
dc.date.accessioned2010-06-08T19:27:02Z
dc.date.available2010-06-08T19:27:02Z
dc.date.issued2007-05-09
dc.identifier.citationJournal of Geophysical Research 112 (2007): C05017en_US
dc.identifier.urihttp://hdl.handle.net/1912/3610
dc.descriptionAuthor Posting. © American Geophysical Union, 2007. 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 112 (2007): C05017, doi:10.1029/2006JC003731.en_US
dc.description.abstractAn ecosystem model embedded in a global ocean general circulation model is used to quantify roles of biological and physical processes on seasonal oxygen variations. We find that the thermally induced seasonal net outgassing (SNO) of oxygen is overestimated by about 30% if gas phase equilibrium is assumed, and we find that seasonal variations in thermocline oxygen due to biology are approximated well using the oxygen anomaly. Outside the tropics and the north Indian Ocean, biological SNO is, on average, 56% of net community production (defined as net oxygen production above 76 m) during the outgassing period and 35% of annual net community production. In the same region the seasonal drawdown of the oxygen anomaly within the upper thermocline (76–500 m) is 76% of the remineralization during the drawdown and 48% of annual remineralization. Applying model-derived relationships to observed O2 climatologies and using independent estimates for tropical and monsoonal systems, we estimate global net community production to be 14.9 ± 2.5 Pg C yr−1.en_US
dc.description.sponsorshipR.N., X.J., and F.L. were supported from the following grants: NOAA NA16GP2987, NASA NAG5-6451, and NSF OCE-9711937.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.urihttp://dx.doi.org/10.1029/2006JC003731
dc.subjectNew productionen_US
dc.subjectRemineralizationen_US
dc.subjectDissolved oxygenen_US
dc.titleA modeling study of the seasonal oxygen budget of the global oceanen_US
dc.typeArticleen_US
dc.identifier.doi10.1029/2006JC003731


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