Ocean Science
Ocean Science
OS
Articles | Volume 17, issue 5
Articles | Volume 17, issue 5
https://doi.org/10.5194/os-17-1489-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-17-1489-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 17, issue 5
Research article
 | 
27 Oct 2021
Research article |  | 27 Oct 2021

The riddle of eastern tropical Pacific Ocean oxygen levels: the role of the supply by intermediate-depth waters

Olaf Duteil, Ivy Frenger, and Julia Getzlaff

Supplement

https://doi.org/10.5194/os-17-1489-2021-supplement

Data sets

Forcing for Coordinated Ocean-ice Reference Experiments v2 (COREv2) W. G. Large and S. G. Yeager https://data1.gfdl.noaa.gov/nomads/forms/core/COREv2.html

Model code and software

Earth System Climate Model UVIC M. Eby http://terra.seos.uvic.ca/model/

ARIANE software for tracking particles B. Blanke and N. Grima http://stockage.univ-brest.fr/~grima/Ariane/ariane.html

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Short summary
The large oxygen minimum zones in the tropical Pacific Ocean are still not well represented by typical climate models. We analyze a set of ocean models and highlight the fact that an oxygen concentration that is too low at intermediate depth in the subtropical regions associated with a sluggish representation of the intermediate equatorial current system may be responsible for the overly large extension of the modeled oxygen minimum zones, potentially hampering future projections.
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Special issue
Ocean deoxygenation: drivers and consequences – past, present...