基于ERA-interim资料中国近海风能资源时空分布

作者：孙稚权1 2  项杰1  管玉平2

单位：1. 解放军理工大学气象海洋学院, 江苏南京 211101; 2. 中国科学院南海海洋研究所热带海洋环境国家重点实验室, 广东广州 510301

关键词：近海风能资源 ERA-interim再分析资料 ENSO

分类号：P743

出版年·卷·期（页码）：2016·33·第三期（50-56）

摘要：

未来风能开发的重心将逐渐转移到风能更为丰富的近海区域,通过1979—2014 年的ERA-interim 再分析资料,对不同高度和水深条件下的中国近海风能资源的时空分布特征进行了分析研究。结果显示我国近海风能资源整体呈南高北低分布,大值区位于台湾海峡、巴士海峡及南海东南部,过去36 a 我国近海风能资源没有显著变化趋势。风能资源所研究区域的水深越深、风机高度越高,风电的可开发潜力就越大,100 m高度条件及50 m水深条件下我国近海年平均风功率密度约为160 W/m2。此外我国近海风能资源存在明显的季节差异,冬季开发条件最好,夏季最差,且与ENSO存在显著的遥相关关系。

The focus of wind power industry development is gradually shifting to offshore area. Based on ERA-interim reanalyzed data from 1979—2014, we investigated the wind power resources along China offshore areas in different water depth and height conditions. The results show that the overall distribution of wind energy presents a spatial distribution characteristic which increase from north to south, and has the highest value in the Taiwan Strait, the Bashi Channel and the south-east of the South China Sea. The offshore wind power density has no significant variation trend over the past 36 years. Under the condition of the height of 100 m and the water depth of 50 m, the annual average wind power density along China offshore areas is about 160 W/m2. The offshore wind power in China displayed distinctive seasonal differences, and shows a close connection with ENSO.

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