Articles | Volume 15, issue 3
Geosci. Model Dev., 15, 1017–1035, 2022
https://doi.org/10.5194/gmd-15-1017-2022
Geosci. Model Dev., 15, 1017–1035, 2022
https://doi.org/10.5194/gmd-15-1017-2022
Model evaluation paper
03 Feb 2022
Model evaluation paper | 03 Feb 2022

Sensitivity of asymmetric oxygen minimum zones to mixing intensity and stoichiometry in the tropical Pacific using a basin-scale model (OGCM-DMEC V1.4)

Kai Wang et al.

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Latest update: 08 Aug 2022
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Short summary
We use observational data of dissolved oxygen (DO) and organic nitrogen to calibrate a basin-scale model (OGCM-DEMC V1.4) and then evaluate model capacity for simulating mid-depth DO in the tropical Pacific. Sensitivity studies show that enhanced vertical mixing combined with reduced biological consumption performs well in reproducing asymmetric oxygen minimum zones (OMZs). We find that DO is more sensitive to biological processes in the upper OMZs but to physical processes in the lower OMZs.