Evaluating semi-empirical wave forecasting method CEM in the Strait of Hormuz

Abstract

Wind waves are one of the most important phenomena that should be considered in coastal and offshore activities. They have many effects on coastal environments such as wave-induced erosion, sediment and pollution transport and even in the worst cases destruction the marine ecosystems. Therefore, knowing the wave characteristics is very important for environmental research. In this paper, the accuracy of CEM semi-empirical method in forecasting the wind-induced waves characteristics in the Strait of Hormuz (SOH) have been studied. Initially, the characteristics of the waves have been calculated by employing the CEM based on wind data from local synoptic stations. Then, the evaluating process have been done by comparing the forecasting values (wave heights and periods) of this method with same recorded value of wave buoys in the SOH. According to the performed study, the accuracy of semi-empirical method in forecasting wave characteristics were in close agreement with measurements values and the SMB method is suitable for determining the wave characteristics in this area. The results show that there is a good correlation coefficient between observations and forecasting data in the CEM and the CEM method has a very small bias error. So, this method is suitable for determination the wave characteristics in this area.

Keywords

• wind wave
• cem
• modeling
• hormuz strait
• forecasting