Numerical simulation of dumping consequences during dredging in coastal marine systems

The work is devoted to numerical simulation of the consequences of soil dumping in coastal marine systems. These works are associated with dredging, in which bottom sediments of various types are extracted from the bottom, and then transferred and dumped to a designated discharge site. Soil dumping works lead to the formation of areas with a high concentration of suspended matter (>50 mg/l), the sedimentation of suspended matter and the formation of an additional layer of sediment on the bottom. In the process of mathematical modeling of these processes, it is necessary to consider data on the hydrodynamic characteristics of a water body, the amount and type of soils extracted from the bottom, the redistribution of soils and the concentration of suspended matter in the aquatic environment. This paper presents mathematical models that allow taking into account the diversity of these factors. Based on them, a complex of parallel programs for high-performance computing systems has been developed that allows modeling these processes. The results of work of this complex can be used to assess risks and vulnerabilities in relation to soil dumping, as well as the implementation of environmental design in relation to a specific water body.