Simulation of Tidal in Khowr-e Musa by Using the TELEMAC Numerical Model (original) (raw)
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A TELEMAC-2D model is presented that incorporates the Red Sea, Persian Gulf and the northern Indian Ocean, covering an area of roughly 5 • 10 6 km 2. Due to the size of the model domain, a significant portion of the tidal forcing comes from the tidal body force that is exerted by celestial objects on the fluid mass in the model domain itself, in addition to the tidal forcing at the model domain boundaries. The formulation for the tidal body force in TELEMAC-2D is examined and improved, and the impact of the force on the M2 tidal amplitude is displayed. The model is calibrated against tidal amplitudes and phases at 29 tide gauges across the model domain using an automatic calibration procedure. Two nonlinear optimization algorithms, the Nelder-Mead simplex algorithm and the BFGS algorithm, are tested in the calibration procedure. Results from the two algorithms are comparable, although the BFGS algorithm shows a slightly faster convergence behaviour. I.