open estuary
1.By creating a large scale computing grid (south to Kanmen, north to Lianyun Harbor, west to 125.15°E )of Changjiang estuary and Hangzhou Bay and their neighboring sea areas and using up to date data of tidal stations, 8 major tidal constituents, M2, S2, N2, K2, K1, O1, P1 and Q1, are simulated more accurately. And thus more accurate tidal level boundary condition can be given at the open boundaries of models of Changjiang estuary.

