Investigation methods of submesoscale fronts at the edge of mesoscale eddies in the ocean
There are strong exchange of matter and energy and complex dynamic processes between mesoscale ed-dies and submesoscale fronts at their edges.At present,the investigation of mesoscale eddies has become more and more mature,but because of the small spatial scale and rapid time change of the submesoscale front,it is a great challenge to investigate its three-dimensional structure.In this paper,a new method is proposed to investigate the submesoscale front at the edge of the ocean mesoscale eddy.Firstly,the submesoscale front at the edge of the meso-scale eddies is identified using multi-source satellite remote sensing data,and then the multi-type shipborne survey equipment is used for multidisciplinary investigation.A submesoscale front at the edge of typical eddies in the Kur-oshio Extension area from August 21 to August 25,2023 is investigated by using this method.The survey method proposed in this paper can effectively identify,track and investigate the submesoscale front at the edge of meso-scale eddies.
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