Model ; Monsoon ; Numerical model ; Ocean circulation ; Pacific Region ; Seasonal variation ; Tide ; Wind
The results showed that the tide-induced Lagrangian Residual Circulations, LRC, of the harmonic constituent M2 bears an identical pattern in 4 seasons in the Bohai Sea : the surface one is weak with random directions; however, there exist
a southeast current from the Bohai Strait to the Laizhou bay, and a weakly anticlockwise gyre in the south of the Bohai Strait for the bottom layer LRC. The magnitude of bottom layer tide-induced LRC is larger than the surface one, and moreover, it conributes
significantly to the whole LRC in the Bohai Sea. Unlike the identical structure of the tide-induced LRC, the wind diven LRC varies seasonally under the prevailing monsoon.