School of Marine Science and Technology;
Northwestern Polytechnical University;
Xi’an 710072;
China;
Maritime Environment Construction Office;
Beijing 100081;
China;
Guangdong Key Laboratory of Coastal Ocean Variability and Disaster Prediction;
College of Ocean and Meteorology;
Guangdong Ocean University;
Zhanjiang 524088;
China;
Marine Resources Big Data Center of South China Sea;
Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang);
Zhanjiang 524025;
China;
mesoscale eddy; three-dimensional structure; volume transport; available heat and salt content anomaly; energy analysis;