Hydrodynamic Circulation under Tide Conditions at the Gulf of Evoikos, Greece

Hydrodynamic circulation in the marine environment, characterized by the effects of the intense tide conditions, the atmospheric loading, and the bathymetry, constitutes a complex phenomenon. The present paper deals with the numerical simulation of the hydrodynamic circulation of the Gulf of Evoikos, which is characterized by the existence of a strong tide. The Estuarine and Lake CΟmputer Model three-dimensional hydrodynamic model has been used, which, besides the tide, takes into consideration the atmospheric forces acting on the surface of the study area, such as the solar radiation, the atmospheric pressure, the relative humidity, the rainfall height, the air temperature and the wind speed and direction. The physical and hydrodynamic characteristics of the water circulation under tide conditions are examined such as the salinity, the water temperature, the density stratification, the flow velocities, the tracer concentration, etc. These characteristics are absolutely critical for the diffusion and dispersion of passive pollutants, the water flow renewal, and the general environmental situation.