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Forty-year investigation of wave power in energetic region of Persian Gulf in Iranian territorial waters by using short-term and new long-term stability assessment parameters

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Acta Oceanologica Sinica 2023年第10期42卷 75-83页

作者： Fouad Salimi Cyrus Ershadi Vahid Chegini Department of Civil Engineering University of HormozganBandar Abbas *** P.OBOX:3995Iran Department of Coastal Engineering Islamic Azad University(Central Tehran Branch)Tehran ***Iran

The wave power in high potential area of the northern Persian Gulf(near to Iranian coastal areas)is assessed by taking into account the temporal and spatial distributions of wave power for a period of forty *** this purpose,assimilated wind data of European Centre for Medium-Range Weather Forecasting Interim Reanalysis(ERA-Interim),and hydrography data of General Bathymetric Chat of the oceans(GEBCO)are used as SWAN *** locations are investigated in the study area by considering the amount of coefficient of variation,the amount of average annual power,and the short-term and a new long-term(decadal variability index)power stability assessment *** results showed more stability in the eastern parts of the study area and concluded that a narrow line between the point which is in the middle and another point which is in the eastern middle part of the study area may be the best locations for more investigation and the feasibility study for energy converter ***,it is found that the middle part of the study region with about 2.5 kW/m power is the most energetic *** is concluded that the dominant direction of wave power distribution in all points is the northeast,and this dominant direction has not changed during the forty-year *** is observed that the mean annual energy increases with a slight slope in the total 40 a,and this increasing trend is more obvious in the fourth *** it is observed that the wave power of the second decade has the most stability and the least variation,the wave power in the fourth decade has the most ***,the results showed that the study region’s wave power increase by approximately a mean change rate of 0.027 kW/(m·a);and the maximum change rate of wave power was in the northwest part and the minimum change rate of wave power was in the southeast part which were about 0.036 kW/(m·a)and 0.014 kW/(m·a),respectively.

关键词： wave energy SWAN model wind assimilated data Persian Gulf numerical modeling decadal assessment

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