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Coastal Ocean Estuarine Dynamics studies what is happening in the water in a similar way as meteorology in the air. As an analogy, in meteorology the quantities of interest are (1) air temperature, (2) air pressure, (3) wind speed and direction, (4) humididty, and (5) air density; while in Coastal Ocean Estuarine Dynamics, the quantities of interest are (1) water temperature, (2) water level (or tide), (3) water flow speed and direction, (4) salinity, and (5) water density.

Therefore, Coastal Ocean Estuarine Dynamics is “meteorology” in the coastal water. In meteorology, air humidity, pressure (or height), and temperature determine air density. Density gradient and pressure gradient determine the forces that drive the atmospheric circulation and weather development. In Coastal Ocean Estuarine Dynamics, water salinity, pressure (or depth), and temperature determine water density. Water density gradient and pressure gradient determine the forces that drive the coastal ocean and estuarine circulations which in turn affect the coastal ocean and estuarine ecosystem.