Offshore wave energy resource assessment in the East China Sea |
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| Affiliation: | 1. National Marine Environmental Forecasting Center, State Oceanic Administration, China;2. Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, State Oceanic Administration, Beijing 100081, China;3. National Marine Hazard Mitigation Service, State Oceanic Administration, Beijing 100194, China;4. Institute of Oceanography, Center for Marine and Atmospheric Sciences, University of Hamburg, Bundesstr. 53, 20146 Hamburg, Germany;1. Department of Electrical and Electronic Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan;2. Environment and Energy Research Center, Nitto Denko Corporation, 2-8 Yamadaoka, Suita, Osaka 565-0871, Japan;1. Biomass Refinery Research Center, National Institute of Advanced Industrial Science and Technology (AIST), 3-11-32 Kagamiyama, Higashi-Hiroshima, Hiroshima 737-0046, Japan;2. Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, 192-1 Hyoja, Chuncheon 200-701, South Korea;3. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6226, USA;4. BioEnergy Science Center, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6226, USA;1. International Institute for Applied Systems Analysis (IIASA), Austria;2. University of Hawaii at Manoa, Department of Urban and Regional Planning, USA;3. University of Hawaii Economic Research Organization, USA;4. University of Hawaii at Manoa, Department of Natural Resources and Environmental Management, USA;1. State Key of Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;2. College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China;3. School of Engineering, Cardiff University, Cardiff CF24 3AA, United Kingdom;1. Oceanic Modeling and Observation Laboratory, School of Marine Science, Nanjing University of Information Science and Technology, Nanjing, China;2. Jiangsu Engineering Technology Research Center of Marine Environment Detection, Nanjing, China;3. Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA, USA |
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| Abstract: | The offshore wave energy resource in the East China Sea (ECS) off the coast of the southern East China is assessed using wave buoy data covering the period of 2011?2013. It is found that the averaged offshore wave power was approximately 13 kW m?1 in the region of interest. Most of the offshore wave energy in the ECS is contributed by the sea states with significant wave heights between 1.5 m and 3.5 m and with wave energy periods between 6 s and 8 s. Seasonal variations are detected in the wave characteristics of significant wave height and wave power. The predominant wave directions are mainly from the II quadrant and the IV quadrant, respectively, in winter and summer, in accordance with the monsoon characteristics in the ECS. Wave heights, periods and power are generally higher in winter and autumn, and weaker in spring and summer; however, extreme values occur in some summer and autumn months due to the extreme conditions caused by typhoons passing over this region. These extreme sea states do not contribute much to the total annual energy, mainly because of their low occurrence, but may bring risks to the wave energy converters. |
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| Keywords: | Wave climate Wave energy Wave power East China Sea Wave energy converter |
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