Abu-Qir Bay is a semicircular basin in the eastern part of Alexandria City, Egypt. The Bay has a maximum depth of 15 m, and surface area of 500 km2. The bay is suffering from a serious pollution problem caused by the inflow of brackish water from Lake Edku and the poor-quality water discharged from the Rosetta Nile branch. The variations in wind regimes and seasonal fluctuations in the horizontal distributions of water temperature and salinity have largely affected water circulation in the Bay. The present study investigates water circulation in Abu-Qir Bay and its role in pollutants transport, with the use of numerical modeling techniques. Modeled pollutants include toxic metals and hydrocarbons (dissolved and dispersed petroleum hydrocarbons (DDPH)). The flow velocities induced by several combinations of wind and discharge of the Rosetta Nile branch. Lake Edku and Tabia Pump Station (TPS) were calculated at time steps of 30 s for a period of one month per season each year. The observation point (monitoring station) was chosen near the Abu-Qir Harbor. The calibration and sensitivity analysis of the model were carried out with the use of field-measured pollutant concentrations of toxic metals and hydrocarbons (DDPH) and water circulation data for the Abu-Qir Bay.
ASJC Scopus subject areas
- Geography, Planning and Development
- Environmental Science(all)
- Earth and Planetary Sciences(all)