Abstract
Addressing sea state in a coastal region of Gulf of Oman by a directional wave spectrum for the very first time is the main focus of this study. The region encounters wind-sea as well as swell. So, proper modeling of the sea state requires in general a double peak spectral model.The research is firstly conducted to calibrate nondirectional Torsethaugen double peak spectrum for the region by entering the separation frequency; a frequency in which wind-sea and swell parts could be divided. This novel calibration procedure is simple while results in much better outcome. Besides, one has to decide about an appropriate Directional Spreading Function (DSF) for the wind-sea and swell components. Then, nine possible combinations of three well-known DSFs have been investigated and calibrated to provide maximum conformity between observed and modeled directional wave spectra.
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