Articles | Volume 12, issue 4
Biogeosciences, 12, 1113–1130, 2015
https://doi.org/10.5194/bg-12-1113-2015
Biogeosciences, 12, 1113–1130, 2015
https://doi.org/10.5194/bg-12-1113-2015
Research article
24 Feb 2015
Research article | 24 Feb 2015

What prevents nitrogen depletion in the oxygen minimum zone of the eastern tropical South Pacific?

B. Su et al.

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Cited articles

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A box model of the eastern tropical South Pacific oxygen minimum zone suggests that anaerobic water-column remineralization rates have to be slower than aerobic remineralization in order to explain the relatively high values of observed nitrate concentrations. Lateral oxygen supply sufficient to oxidize about one-fifth of the export production is required to prevent an anoxic deep ocean. Under these circumstances, the region can be a net source of fixed nitrogen to the surrounding ocean.
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