سهم خورشید و ماه در جزر و مد رودخانه بهمنشیر

In this study an annual report of water height in Torat-Bakhakh station was investigated. This is the first study that considers tidal calculation including identification of tidal constituents and modeling in the study area. The only study that could be mentioned is investigating the tidal regime with less than six month data which identified only three tidal elements. In this study an annual report of water height in Totat-Bakhakh station was investigated. In this study five tidal constituents of M2, Mf, O1, K1, and K2 were identified. The strongest element in this spot was M2 and it reveals that major changes of tides are related to the moon location. According to the American scale, the f-number is f=0.36 which indicates a semi-diurnal type of tides, because this quantity is less than 0.5. Hence, the tide of this area represents the powerful influence of the sea.