SYNOPTIC EDDIES IN OCEAN
Jing Zhenhua(Ocean University of Qingdao, Qingdao 266003)
The inhomogeneous distribution characters of sea water is classified into 4 kinds, namely, small-scale, mesoscale, synoptic and global scale. As compared with Rossby deformation radius in atmospheric jet current synoptic eddies in ocean are ten times as small in their dimensions and ten times as slow as those in atmosphere. Meanders in ocean can not be analogs of atmospheric high-altitude front zones and near-bottom front though free synoptic eddies may concentrate in ocean upper half. They are in contrast to atmospheric low-level cyclones and anticyclones as compared with generation of near-ground eddies under high-altitude front zones. Frontal rings and eddies in open ocean exert effect on local weather, and rings are important to meridinal heat transfer in ocean.