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A modeling study of the seasonal oxygen budget of the global ocean

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dc.contributor.author Jin, X.
dc.contributor.author Najjar, Raymond G.
dc.contributor.author Louanchi, F.
dc.contributor.author Doney, Scott C.
dc.date.accessioned 2010-06-08T19:27:02Z
dc.date.available 2010-06-08T19:27:02Z
dc.date.issued 2007-05-09
dc.identifier.citation Journal of Geophysical Research 112 (2007): C05017 en_US
dc.identifier.uri http://hdl.handle.net/1912/3610
dc.description Author 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.abstract An 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.sponsorship R.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.mimetype application/pdf
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.relation.uri http://dx.doi.org/10.1029/2006JC003731
dc.subject New production en_US
dc.subject Remineralization en_US
dc.subject Dissolved oxygen en_US
dc.title A modeling study of the seasonal oxygen budget of the global ocean en_US
dc.type Article en_US
dc.identifier.doi 10.1029/2006JC003731


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