Review of "Evaluation of asymmetric Oxygen Minimum Zones in the tropical Pacific: a basin-scale OGCM-DMEC V1.0" by Kai Wang, Xiujun Wang, Raghu Murtugudde, Dongxiao Zhang, Rong-Hua Zhang

Abstract

Wang and co-authors investigate the impacts of physical supply and biological consumption of dissolved oxygen (DO) on the dynamics and asymmetry of the OMZs in the tropical Pacific.They perform 4 numerical experiments to evaluate the sensibility of the mid-depth oxygen concentration to these aspects in their model, OGCM-DMEC v1.0. The physical supply is evaluated through the background diffusion parameterisation (that the authors test by changing a partial mixing parameter) and the effects of biological consumption on oxygen are tested by changing the C:O utilization ratio. The final aim is to advance their model capacity to simulate the oceanic oxygen cycle, and to explore the mechanisms driving the asymmetric OMZs in the tropical Pacific (introduction, l.67-68).