Preliminary Discussion on the Zoning, Classification and Impaction of Ocean Mesoscale Eddy in China Seas and the Adjacencies
2023
Qinghua QI
As the key scale and important link of material cycle, energy cascade and information transmission, ocean mesoscale eddy (OME) has rich thermodynamic connotation. Based on the kinetic energy zoning of OME in China seas and the adjacencies (CSA), this paper mainly summarized the motion properties, dynamic essence and local characteristics of the OME in the CSA, and elaborated generation, propagation and energy cascade dissipation of OME disturbances, as well as the impaction of the OME in the processes of ocean current dynamics, heat and salt allocation, biogenic elements cycle and mesoscale sea-air interaction from the perspective of scale limitation and association, and subsequently put forward research suggestions on relevant scientific issues and progress. The results showed that the evolution and dynamics of the OME was of great significance for understanding the multi-dimensional levels, scale-quantity and process-forms of the material and energy transmission in the ocean. It was necessary to comprehensively deepen the research on the self-adaptive observation and the predictability of OME, enhance the studies on scale deduction and specificity, establish an energy information channel from the weather scale to the climatic, environmental, ecological impaction and disaster risk, and build the theory and model of mesoscopic ecosystem dynamics. We should explore new ways, from the viewpoint of the OME, to refine disaster risk projection, zoning and security governance.
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