Ocean Circulation for Shellfish Aquaculture Area, Gamak Bay

Gamak bay is the 4th largest oyster aquaculture area in Korea. However, recently oyster farms in Gamak Bay have been slowly devastated by continuous pollutant loading, red tides, typhoons, and dense aquaculture facilities. For a better understanding of environmental factor influencing oyster production and the management of oyster stocks in Gamak Bay, it is important to understand and verify current, tide, wind features during fall. The fall circulation in Gamak Bay is examined using the Princeton Ocean Model and is focused on the tidal motion to examine the effect of wind on in Gamak Bay. For the simulation of fall circulation, we simulated the POM the 45 days. Using the 3 largest rivers and sewage treatment plant discharge as a forcing term, salinity concentrations in sea waters, we simulated the salinity field of Gamak Bay and have shown that these discharges affect the salinity and flow field in inner Gamak Bay. For the simulation of fall circulation, we simulated the POM for each month. Comparison with observation and POM simulation, the model corresponds well to the observed velocities at several layers in Gamak Bay.