Wind waves in the South Caspian Sea

Waves play an important role in the geometry and composition of beaches. Iran has 700 km of coastline with the Caspian Sea, which is important understanding its waves. By reviewing sources, this study provides a comprehensive and analytical knowledge of the waves of Caspian Sea, so that the Caspian waves are wind-driven waves, and the prevailing waves of the southern Caspian are the western waves at first and then the northern waves (with a maximum height of 5.57 m). The maximum wave height is random due to the number of waves reaching the area and break of waves are more of spilling brakers. The exact pattern of the wind field (at the wave heights of 0.5-1.5 m), and the dimensions of the basin under the wind affect the formation of waves. Among the different simulation methods (JONSWAP, CEM, SPM, SMB, MIKE21 model (SW package), regression decision trees method and artificial neural networks) that can be seen in different studies, the last two methods with close answers have double accuracy in compare with others. However, the latter two methods lowerestimate the height of the wind waves slightly and overestimates the wave period slightly in compare with the measurement in South Caspian Sea.