Articles | Volume 15, issue 3
https://doi.org/10.5194/gmd-15-1017-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-1017-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
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
College of Global Change and Earth System Science, Beijing Normal
University, Beijing 100875, China
College of Global Change and Earth System Science, Beijing Normal
University, Beijing 100875, China
Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland 20740, USA
Raghu Murtugudde
Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland 20740, USA
Dongxiao Zhang
Pacific Marine Environmental Laboratory, University of Washington and NOAA, Seattle, Washington 98115, USA
Rong-Hua Zhang
Institute of Oceanology, Chinese Academy of Sciences, Qingdao,
Shandong 266071, China
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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.
We use observational data of dissolved oxygen (DO) and organic nitrogen to calibrate a...