Abstract:

The East Sea area of Vietnam has complex tidal properties, so the calculation and determination of the “0” depth standard faces many difficulties. Furthermore, Vietnam’s marine area is too large compared to the number of existing tidal test stations. Using only existing tidal test stations to model the depth reference surface is not possible. The paper proposes a solution to exploit the global average dynamic terrain model DTU10 MDT, to take advantage of this model, the average altitude data of the East Sea is available. The paper proposed a solution to match this model with the mean sea level of Vietnam at the Hon Dau tidal test station and transitionally so that this model would coincide with the regional tidal stations. By interpolating the mean height and the lowest altitude interpolation for the vertices of the meshes on the DTU10 MDT model over the entire land area and the East Sea area, a new model representing the mean and lowest sea level for Viet Nam.