Abstract
The article presents the investigation of morphological changes and simulation of circulation in the Hai Phong area, Vietnam using remote sensing and measured data for a period of 1965-2005. During this period, the shoreline and sea bottom relief have changed considerably. The circulation and the tendency of sediment transport were simulated by developing a modeling system. In the system, three-dimensional thermo-dynamic primitive equations were used to investigate current velocity, water level, and the sediment transport. A special computing procedure was applied to the river boundaries because the tidal range in the area is approximately 4 m. In addition to the model study, a record of field survey for the wave climate is presented in a period from 2005 to 2006. The result suggests that the wave energy is small throughout a year, and the wave-induced current is negligible in the Hai Phong estuary. This study was extended to study turbidity in the Do Son beach area.
