Journal of Marine Science and Technology

Journal of Marine Science and Technology

Development of a three dimensional numerical modeling to study the thermodynamics of wind-driven currents

Document Type : Original Manuscript

Authors
Ardeshir Farhadi
Mohammad Taghi Zamanian
Faculty Member of ASMERC
10.22113/jmst.2017.50240
Abstract
We have developed a basic three-dimensional finite difference hydrodynamic oceanic model using baroclinic primitive equations based on the earth's spherical coordinate modified by vertical sigma coordinate with eleven levels equivalent to five layers to study the thermodynamics of wind-driven currents. In this basic model, we consider an enclosed rectangle area, with constant depth of 120 m.
We have simulated the horizontal velocity fields, salinity and temperature distributions by forcing the model with the steady bellowing wind over the area for four days with the speed of 10 m/s and direction . According to the Rossby number of the order of one tenth thousands, the large scale processes are dominated in the middle of such basins.
The salinity and temperature of the layers are changed due to the diffusion and convection terms in the salinity and temperature equations, respectively.
Keywords
Development
Numerical modeling
wind-induced currents
Thermodynamics

Subjects

Apel J. R. 1999. Principles of Ocean Physics. (R. D. and J. R. HOLTON, Ed.), International Geophysics Series (Vol. 38). London Academic Press.
Davies A. M. 1983. Application of a threedimensional shelf model to the calculation of North Sea currents. North Sea Dynamics, 44–62.
Drago M., ans Iovenitti L. (2000). ϭ -Coordinates hydrodynamic numerical model for coastal and ocean threedimensional circulation. Ocean Engineering.
Estoque M. A. 1963. A numerical model of the atmospheric boundary layer. Journal of Geophysical Research, 68(4), 1103–1113.
Faraji H., Zamanian M. T., Rashidi E. H. A. and Azaram Sa S. A. 2012. Numerical Simulation of Ekman Theory in Five Layers Oceanic Basin. Journal of Marine Science and Technology, 11 (1), 41-48.
Haltiner G. J., and Williams R. T. 1980. Numerical prediction and dynamic meteorology.
Jin Z., Charlock T. P., Smith W. L., and Rutledge K. 2004. A parameterization of ocean surface albedo. Geophysical Research Letters, 31(22), 1–4.
Kantha L., and Clayson, C. 2000. Numerical Models of Oceans and Oceanic Processes. International Geophysics (Vol. 66).
Khan T., and Alas J. D. Las. 1993. Application of a wind-driven barotropic model to simulate the seasonal circulation of the northern Arabian Sea. Pakistan Journal of.
Nihoul J. C. J. 1977. Three-dimensional model of tides and storm surges in a shallow well-mixed continental sea. Dynamics of Atmospheres and Oceans, 2(1), 29–47.
Phillips N. 1957. A coordinate system having some special advantages for numerical forecasting. Journal of Meteorology. Retrieved from
Pous S. P., Carton X., and Lazure P. 2004. Hydrology and circulation in the Strait of Hormuz and the Gulf of Oman-Results from the GOGP99 Experiment: 1. Strait of Hormuz. Journal of Geophysical Research C: Oceans, 109(12), 1–15.
Pugh D., and Woodworth P. 2014. Sealevel science: understanding tides, surges, tsunamis and mean sea-level changes.
Roemmich, D., Johnson G., Riser S., Davis R., Gilson J., Owens W. B., and Ignaszewski M. 2009. The Argo Program: Observing the Global Oceans with Profiling Floats. Oceanography, 22(2), 34–43.
Thomson R., and Emery W. 2014. Data analysis methods in physical oceanography (Third).
Wu J. 1980. Wind-Stress coefficients over Sea surface near Neutral Conditions—A Revisit. Journal of Physical Oceanography, 10(5), 727–740.
Zamanian M. T. 2005. Project of the two layer oceanic base model. Report of the Atmospheric Sciences and Meteorological Research Center. Tehran, Iran.
Zamanian M. T., Sadri Nasab M. and Fallahi M. 2018. Designing a numerical model to study the effect of Tide and wind in a laboratory basin in similarity to Persian Gulf. Journal of Marine Science and Technology (In press),. do: 10.22113 /jmst.2019.149922.2203.

  • Receive Date 08 May 2017
  • Revise Date 30 July 2017
  • Accept Date 18 September 2017
  • Publish Date 23 July 2021