Numerical Simulation of the Wind-Induced Current in the Caspian Sea
Publish place: International Journal of Coastal, Offshore and Environmental Engineering، Vol: 2، Issue: 1
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJCOE-2-1_006
تاریخ نمایه سازی: 27 اردیبهشت 1401
Abstract:
A three-dimensional primitive equation model has been developed to study wind-driven currents in the Caspian Sea (CS). The equations were solved in the spherical coordinate system with a vertical array of pressure-sigma using a finite difference Method on a staggered modified Arakawa c grid. Simulations showed that there is an anticyclonic eddy over the deep water of South Caspian Basin (SCB), which extended from surface to subsurface and persist throughout the year. The model successfully produced the coastal current along the eastern coast of the Middle Caspian Basin (MCB) with a prevailing southward component, resulting in upwelling on these coasts to compensate the surface drift. The results indicate that the bottom topography has a key role in steering currents and generated a divergence in the surface Ekman layer which balanced by convergence in the frictional bottom Ekman layer in deepest areas of the CS.
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Authors
Jalal Mofidi
University of hormozgan
Akbar Rashidi Ebrahim Hesari
Tarbiat Modares University
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