The Seasonal Circulation And Thermohaline Structure In The Japan Sea Are Studied Numericall Using The POM

The Seasonal Circulation And Thermohaline Structure In The Japan/East Sea(JES) Are studied numericall using the Princeton Ocean Model (POM) with horizontal resoluttion varying from 11.54 to 18.53 km and 15sigma levels conforming to a relatively realistic bottom topography. A twenty four month control run was performed using climatological monthly mean wind stresses and heat and salt fluxes as surface forcing and observational oceanic inflow at open boundaries. Major currents are simulated reasonably well compared evidently , but does affect the formation of the mesoscale eddies ,espcially the Ulleung/Tsushima Basin (UTB)eddy (all seasons) and the Japan Basin(JB) cyclonic gyre (spring). The lateral boundary forcing enhances (weakens) the JEA volume transport in the the summer (winter). The wind forcing is the most important factor(80%) for generating the JB cyclonic gyre In addition the wind forcing drives the Liman Current and damos the East Korean warm Current in the Winter , and generates the UTB eddies along the Japan Nearshore Branch(JNB) in all seasons .However , it has almost no the JNB currents for seasons.