Dynamics of Agulhas Retroflection and Ring Formtion in a Quasi-Isopycnic Coordinate Numerical Model

摘要

The Agulhas retroflection region of the idealized South Atlantic-Indian ocean model described by De Ruijter and Boudra (1985) and Boudra and de Ruijter (1986) is analyzed in detail. First, the physical mechanism of the model retroflection is presented through illustration of the Agulhas' vorticity balance among various experiments, and second, the ring formation process is described in terms of its vertical structure and the associated energy conversions.