Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
Journal topic
Volume 14, issue 20
Biogeosciences, 14, 4601–4617, 2017
https://doi.org/10.5194/bg-14-4601-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 14, 4601–4617, 2017
https://doi.org/10.5194/bg-14-4601-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 19 Oct 2017

Research article | 19 Oct 2017

The OMZ and nutrient features as a signature of interannual and low-frequency variability in the Peruvian upwelling system

Michelle I. Graco et al.
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer review completion
AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (11 Jun 2016) by Gerhard Herndl
AR by Michelle Graco on behalf of the Authors (14 Sep 2016)  Author's response
ED: Referee Nomination & Report Request started (20 Sep 2016) by Gerhard Herndl
RR by Anonymous Referee #2 (09 Oct 2016)
RR by Anonymous Referee #1 (27 Oct 2016)
ED: Reconsider after major revisions (30 Oct 2016) by Gerhard Herndl
AR by Anna Mirena Feist-Polner on behalf of the Authors (03 May 2017)  Author's response
ED: Referee Nomination & Report Request started (22 May 2017) by Gerhard Herndl
RR by Anonymous Referee #1 (02 Jun 2017)
ED: Publish subject to technical corrections (29 Aug 2017) by Gerhard Herndl
AR by Michelle Graco on behalf of the Authors (01 Sep 2017)  Author's response    Manuscript
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Short summary
The Peruvian coastal upwelling ecosystem is a natural laboratory to study climatic variability and climate change. We examined the variability in the OMZ in the last decades in connection with the equatorial Pacific strong 1997–1998 El Niño event and the influence of central Pacific El Niño events and enhanced equatorial Kelvin wave activity since 2000. The data reveal two contrasting regimes and a long-term trend corresponding to a deepening of the oxygen-deficient waters and warming.
The Peruvian coastal upwelling ecosystem is a natural laboratory to study climatic variability...
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