Development of system of Hydrodynamic-Environmental models for coastal area (Case study in Quang Ninh - Hai Phong region)

Abstract

The system of three-dimensional hydrodynamic-environmental models could simulate full advection and dispersion processes of the dissolved and particulate matter as suspended sediment and all oil phases in the realistic marine conditions. The hydrodynamic model provides temperature, salinity and current structure and water level. These variables will be used in the environmental model simulating the advection and diffusion processes for suspended matter concentration, bottom sediment thickness and all oil spill phases in the water and bottom sediment. This model includes two-dimensional (2D) sub-model for surface oil slick, dissolved and particulate oil, the thickness change in the bottom sediment layer and three-dimensional (3D) sub-model for the suspended matter, dissolved, emulsified and particulate oil in the water column. Preliminary results for the EDC, PCB transport in Ha Long Bay region, for surface oil spill in the Hai Phong area show that the system of models could be used to simulate and predict the spreading of the contaminant matter in the coastal and estuarine waters and to resolve the problem of sediment transport and morphological change.