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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 21
Biogeosciences, 15, 6461–6480, 2018
https://doi.org/10.5194/bg-15-6461-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 6461–6480, 2018
https://doi.org/10.5194/bg-15-6461-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 02 Nov 2018

Research article | 02 Nov 2018

Evaluation of the seasonal formation of subsurface negative preformed nitrate anomalies in the subtropical North Pacific and North Atlantic

Robert T. Letscher and Tracy A. Villareal
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (24 Jul 2018) by Manmohan Sarin
AR by Robert Letscher on behalf of the Authors (25 Jul 2018)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (31 Jul 2018) by Manmohan Sarin
RR by Anonymous Referee #4 (17 Sep 2018)
ED: Reconsider after major revisions (26 Sep 2018) by Manmohan Sarin
AR by Robert Letscher on behalf of the Authors (02 Oct 2018)  Author's response    Manuscript
ED: Publish as is (09 Oct 2018) by Manmohan Sarin
Publications Copernicus
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Short summary
The formation rates of oxygen to nitrogen anomalies in the subtropical North Pacific and North Atlantic were estimated from time series data. We find that vertically migrating phytoplankton, which traverse ~ 100–150 m in the upper ocean over days to acquire nutrients from waters at depth and return to the surface for photosynthesis, likely explain the observed anomalies and help sustain surface ocean productivity and the biological pump throughout the annual cycle in the subtropical ocean.
The formation rates of oxygen to nitrogen anomalies in the subtropical North Pacific and North...
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