Abstract: The wave parameters are the important factor in the offshore and near-shore activities. The choice of the appropriate parametric method for wave parameters calculation has a significant impact on the design of maritime structures (such as, fixed offshore platform, marine terminal jetty, harbor,... etc.) from the cost point of view. Several parametric methods have been used to predict wave parameters that have been based on data from certain areas of the sea. These methods are still used in many Coastal areas such as the coast of Egypt. Therefore, evaluating the performance of these methods based on the measured data of the coast of Egypt is very important because of many recent discoveries of oil and gas. In this study, P-M, SPM and CEM methods were used to predict the 3 hourly significant wave height (Hs) and significant wave period (Ts). The data used in evaluation are significant wave heights (Hs), significant wave periods (Ts), wind speed (u) and fetch length (F). This data measured in the offshore area of Alexandria and Port Said located on the southern coast of the Mediterranean Sea. This study aims to find optimal parametric method that we can used safely in the prediction of wave parameters of this region. The results indicated that the P-M method with some modification in the significant wave period equation gave the best results in the prediction of wave parameters than other methods.
Keywords: Mediterranean Sea, Wave parameters, Parametric method and Offshore and near-shore