| 摘要: |
| 文章利用ERA-40海表10 m风场，采用一元线性回归方法，计算印度洋海表风速在45年间(1957年9月至2002年8月)的逐年变化趋势,为“21世纪海上丝绸之路”建设、海上风能开发和全球气候变化研究等提供科学依据。研究表明：海表风速呈显著性逐年递增的区域主要分布于25°S—10°N 的海域和南半球咆哮西风带所控制的海域，递增趋势为0.01～0.035 m·s-1·a-1，仅零星海域呈显著性递减趋势，其余海域的海表风速无显著变化趋势；南、北印度洋的海表风速分别以0.010 2 m·s-1·a-1和0.004 7 m·s-1·a-1的速度显著性逐年线性递增，年平均海表风速分别在7.5 m·s-1左右和5.2 m·s-1左右；南、北印度洋存在共同的2.6～2.7 a和5.2 a的变化周期以及26 a以上的长周期变化，且海表风速的突变期分别为1989年和1978—1980年。 |
| 关键词: 印度洋 海表风速 突变 海洋环境 21世纪海上丝绸之路 |
| DOI： |
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| 基金项目:河口海岸学国家重点实验室开放基金资助项目(SKLEC-KF201707)；高端科技创新智库青年项目（DXB-ZKQN-2016-019）；国家自然科学基金项目（41405062）；中国科学院可再生能源重点实验室开放基金项目（Y707k31001）. |
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| Ocean Environment of the ‘21st Century Maritime Silk Road’: Long Term Changing Trend of Surface Wind Speed in India Ocean |
| XU Yue,ZHENG Chongwei,ZHANG Zhong,TIAN Yanyan,ZHANG Zhe,YANG Wenguang |
| Dalian Naval Academy;Dalian Naval Academy;State Key Laboratory of Estuarine and Coastal Research;State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG),Institute of Atmospheric Physics,the Chinese Academy of Sciences;Jiangsu International Sci Tech Cooperation Center;No.92212 of People’s Liberation Army |
| Abstract: |
| By using the ERA-40 sea surface wind field (10 m),the year-by-year changing trend of the Indian Ocean’s wind speed in the period of 1957.09—2002.08 was calculated,in hope of providing scientific support for exploiting wind power and studying global climate changes.The main conclusions were followed: During the past 45 years,the Indian Ocean with a significant year-by-year increasing trend were mainly found on waters between 25°S—10°N,and the westerly belt waters of the Southern Hemisphere,with a significant increasing trend of about 0.01~0.035 m·s-1·a-1.Only a very few seas showed a significant decreasing trend,while the rest seas exhibited no significant changing trend.The sea surface wind speed of southern and northern Indian Ocean had a significant increasing trend of 0.010 2 m·s-1·a-1,0.004 7 m·s-1·a-1 separately.The southern and northern Indian Ocean had a common period of 2.6~2.7 years,5.2 years,and long term cycle of more than 26 years.The abrupt changes in wind speed in the southern and northern Indian Ocean charts were in 1989,1978—1980 respectively. |
| Key words: Indian Ocean,Sea surface wind speed,Abrupt,Marine environment,21st Century Maritime Silk Road |
