A Study on Residual Flow in the Gulf of Tongking
- 48 Downloads
On the basis of observations of water temperature, salinity and wind during winter (December to following February) and summer (June to August) in the Gulf of Tongking, a robust diagnostic three-dimensional model has established that reveals the seasonal variation in residual flow, including wind-driven current, density-driven current and tide-induced residual current. It is shown that in the Gulf of Tongking the wind-driven current plays the most important role in the seasonal variation of residual flow field. Due to strong NE monsoon (9 m/s) during winter the residual flow (reaches 30 cm/s) is stronger than that in summer. At the surface the residual flow direction during winter is basically westward or southwestward, while during summer it is almost reversed.
Unable to display preview. Download preview PDF.
- Blumberg, A. F. and L. H. Kantha (1985): Open boundary condition for circulation models. J. Hydraulic Engineering, 111,No. 2, 237-255.Google Scholar
- Guo, X. and T. Yanagi (1994): Three-dimensional structure of tidal currents in Tokyo Bay, Japan. La mer, 32, 173-185.Google Scholar
- Manh, D. V. and T. Yanagi (1997): A three-dimensional numerical model of tides and tidal currents in the Gulf of Tongking. La mer, 35, 15-22.Google Scholar
- Manh, D. V. and T. Yanagi (1999): Seasonal variation in residual flow in the South China Sea (to be submitted).Google Scholar
- Nihoul, J. C. J. and B. M. Jamart (1987): Three-Dimensional Models of Marine and Etuarine Dynamics. Elsevier Publishers B. V., p. 35-54.Google Scholar
- Ramming, H. G. and Z. Kowalik (1980): Numerical Modeling of Marine Hydrodynamics. Elsevier Scientific Publishing Company, p. 112-164.Google Scholar
- Sarmiento, J. L. and K. Bryan (1982): An ocean transport model for the North Atlantic. J. Geophys. Res., 87, 394-408.Google Scholar