| “21世纪海上丝绸之路”风能资源时空变化评估 |
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| 作者姓名： | 周钰淇 崔佳乐 孙博雯 邵莉莉 |
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| 作者单位： | 曲阜师范大学地理与旅游学院,山东 日照 276826 |
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| 基金项目： | 国家自然科学基金项目(41901077)；云南省应用基础研究计划青年项目(202001BB050033) |
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| 摘 要： | 利用1979—2021 年的 ERA5 再分析资料，采用经验正交函数分解法、Mann-Kendall 趋势检验法等统计方法，对“21 世纪海上丝绸之路”相关海区的海表风场与风能密度的空间分布特征、季节变化特征以及长期变化趋势进行分析。结果表明：(1)研究海域风能密度在不同季节表现出很大的空间差异，夏季的阿拉伯海和孟加拉湾，冬季的中国南海，以及全年的热带南印度洋风能资源都极为丰富。(2)研究时段内，中国南海北部及附近海域、阿拉伯海西部、孟加拉湾西部以及热带西北印度洋风能密度等级整体较高。(3)研究海域的风能密度以年变化特征为主，其中中国南海风能密度的季节变幅最大且在春、秋两季表现出明显的转换特征。(4)在研究海区中，结合水深条件与风能密度时空变化特征的评估结果，可以重点关注台湾海峡、吕宋海峡、中南半岛东南沿海、阿拉伯海西部近岸海域及热带西北印度洋近岸大陆架海域风能资源的开发利用，加强其他海域风能资源的储备。此研究可为“21 世纪海上丝绸之路”风能资源的中长期开发规划提供依据。
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| 关 键 词： | 21 世纪海上丝绸之路 海表风场 风能密度 |
Evaluation of spatial-temporal variation of wind energy resources in the area associated with the 21st Century Maritime Silk Road |
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| Authors: | ZHOU Yuqi CUI Jiale SUN Bowen SHAO Lili |
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| Institution: | School of Geography and Tourism, Qufu Normal University, Rizhao 276826 , China |
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| Abstract: | Based on ERA5 reanalysis data from 1979 to 2021, Empirical Orthogonal Function decomposition and Mann-Kendall trend test are used to analyze the spatial distribution, seasonal variation, and long-term trend of the sea surface wind field and wind power density (WPD) in the area associated with the 21st Century Maritime Silk Road. The conclusions are shown below. (1) The WPD in the study area has great spatial differences in different seasons and it is particularly abundant in the Arabian Sea and Bay of Bengal in summer, the South China Sea (SCS) in winter, and the tropical southern Indian Ocean all the year round. (2) In the study period, the overall grade of WPD is high in the north of the SCS and its adjacent waters, the west of the Arabian Sea, the west of the Bay of Bengal, and the tropical northwestern Indian Ocean. (3) The WPD in the study area is mainly characterized by annual variation and it presents the largest seasonal amplitude in the SCS and shows obvious transition features in spring and autumn. (4) In the study area, considering both water depth and evaluation results of spatial-temporal features of WPD, the development and utilization of offshore wind energy resources in the Taiwan Strait, the Luzon Strait, the southeastern coast of Indo-China Peninsula, the west of the Arabian Sea, and the tropical northwestern Indian Ocean shelf seas should be more focused, and the storage of wind energy resources in other waters should be enhanced. This study can provide a basis for the mid-and long-term development of wind energy resources along the 21st Century Maritime Silk Road. |
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