Study of tidal components amplitude distribution in the Persian Gulf, Gulf of Oman and Arabian Sea using numerical simulation

Tide is one of the most regular changes of seas and ocean levels which are offering particular importance due to the influence on the flow pattern in tidal zone. According to engineering needs and environmental protection issues in industrial-economic zone of Persian Gulf, Strait of Hormuz and Gulf of Oman, knowing tidal characteristics of this region is very important. Therefore FVCOM (a three-dimensional ocean model) was used in barotropic mode to stimulate the tidal amplitude in a wide region comprising Persian Gulf, Strait of Hormuz, Gulf of Oman and Arabian Sea. Finite volume method is applied in this model to discretize the hydrodynamic equations on triangular mesh. Uniform computational mesh is used with a resolution of 5 km in the model and one minute bathymetry data has been interpolated on this mesh. The constant values of eight diurnal and semidiurnal tidal components are prescribed along the open ocean boundary. After applying harmonic analysis on the model outputs in desired stations, the achieved amplitude of this analysis compared with results which are obtained from the analysis on the available measurement data in these stations to validate the model results. According to the measurement data and model results in these stations, meanwhile identifying the four main tidal components, the amplitude pattern of these components was determined in the whole domain. Also, by using amplitude of main components and estimating of F factor, the type of tide was predicted in the study area. According to the results obtained in this research, four types of diurnal, semidiurnal, mixed diurnal and mixed semidiurnal tides are seen in the Persian Gulf. In other areas, the tide will be mixed semidiurnal. Moreover, studying the maximum amounts of tidal velocity in the study area shows that the amount of this velocity in the Gulf of Oman and Arabian Sea is less than 0.1 m/s.

Bibliographic Details

Main Authors:	Akbari, P., Sadrinasab, M., Chegini, V., Siadat Mousavi, S.M.
Format:	article biblioteca
Language:	Persian
Published:	2017
Subjects:	Oceanography, Iran, Persian Gulf, Gulf of Oman, Arabian Sea, Tidal components amplitude, FVCOM model, Distribution, Simulation,
Online Access:	http://hdl.handle.net/1834/39455
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