江苏沿海区域波能流特性分析  

Wave energy flow characteristics analysis in the coastal area of Jiangsu Province

作　　者：蒋子明 祁建跃 孙雯萱 王苏楠 叶蓓蓓 JIANG Ziming;QI Jianyue;SUN Wenxuan;WANG Sunan;YE Beibei(College of Hydraulic Science and Engineering,Yangzhou University,Yangzhou 225009,China)

机构地区：[1]扬州大学水利科学与工程学院,江苏扬州225009

出　　处：《能源研究与信息》2024年第4期196-202,共7页Energy Research and Information

基　　金：扬州大学大学生科技创新基金资助项目。

摘　　要：综述了国内外海洋波浪能的储存量及开发利用现状,利用欧洲中期天气预报中心2011—2020年ERA−5高分辨率(0.125°×0.125°)海浪再分析资料,其中包括有效波高、平均波周期等波浪参数,通过对江苏沿海海域的年均波浪能流密度进行计算,研究了该海域的波浪能资源时间和空间分布特征以及波浪能变异系数,从而得到波浪能资源分布丰富且相对稳定的海域。结果表明:江苏沿海波浪能资源有明显的季节特征,冬季资源最丰富,秋季次之,夏季最为匮乏;波浪能资源丰富区域分布在盐城与南通沿海的近海海域与黄海部分海域,总体呈东北—西南走向,波浪能流密度可达4409 W·m^(−1);综合波能流密度、多年波能流变化趋势、波能流的稳定性与江苏沿海的开发条件,可考虑将江苏沿海区域作为资源开发区域。The reserves and utilization status of global and domestic marine wave energy is comprehensively reviewed in this paper.The annual average wave energy flux density in the coastal areas of Jiangsu Province was calculated with the high-resolution(0.5°×0.5°)wave reanalysis data from the European Center for Medium-Range Weather Forecasts(ECMWF)ERA-5 in 2011—2020 including significant wave height and mean wave period.The temporal and spatial distribution characteristics of wave energy resources and the coefficient of variation were studied to obtain the regions with rich and relatively stable wave energy resources.Results indicate that the coastal wave energy resources in Jiangsu Province exhibit distinct seasonal variations in the descending order of winter,autumn,and summer.The areas with abundant wave energy resources are distributed in the coastal areas of Yancheng and Nantong,as well as in parts of the Yellow Sea,generally trending from northeast to southwest.The wave energy flux density can reach up to 4409 W·m^(−1).Considering the comprehensive factors of wave energy flux density,multi-year trend of wave energy flow,stability,and the development conditions along the coast of Jiangsu Province,these regions can be considered for resource development.

关 键 词：波浪能 波能流 ERA−5 时空分布 变异系数 

分 类 号：P743.2[天文地球—海洋科学]