South China Sea
A relatively big marginal sea (3.5 × 106 km²), the South China Sea features complex tidal patterns. Vietnamese researchers has inspected the influence of sea-level rise on tidal dynamics along the Vietnam coast. However, the change of tidal level is also inherent in deep sea. The figure below shows an example for a specific location (9°18′N, 106°30′E) in case of 50-cm sea level rise.
The model used is Delft3D (grid size 0.1°). Calibration has been performed against the measured tidal level at Con Dao (8°41′N, 106°35′E) in July 2000.
Coastal bay, Central Vietnam
Xuan Dai bay is a small water body (40 km²), 7-12 m deep. Eutrophication has been a major concern for the bay and modelling the tidal current of the area. The Delft3D model was used, allowing a finest grid to be 25 m in size. The modelling results also showed that wind (short) waves distort the tidal currents.
