北太平洋北部的风能输入门户  

North part of the North Pacific is a major gateway of wind energy into the ocean

作　　者：张宇[1,4] 崔超然 杨倩 管玉平 Zhang Yu;Cui Chaoran;Yang Qian;Guan Yuping(State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences,Guangzhou 510301,China;Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangdong),Guangzhou 511458,China;College of Marine Science,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]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 [2]中国科学院海洋研究所,山东青岛266071 [3]南方海洋科学与工程广东省实验室(广州),广东广州511458 [4]中国科学院大学海洋学院,北京100049

出　　处：《海洋学报》2021年第3期40-47,共8页

基　　金：国家自然科学基金(41676021);国家重点基础研究发展计划(2013CB956201);南方海洋科学与工程广东省实验室(广州)人才团队引进重大专项(GML2019ZD0306)。

摘　　要：风不仅驱动了上层海洋的环流,也是深层海洋运动的主要能量来源。本文主要研究了北太平洋北部的风能输入的季节性分布特征和年际变化趋势,包括风向表面波、表层地转流和表层非地转流的能量输入。基于SODA3数据的结果表明,风能输入门户随季节变化显著,其中黑潮延伸区是冬季门户,副极地流涡是春、秋季门户,大洋东边界则是夏季门户,能量输入强度逐次递减。21世纪以来,秋冬风能输入明显减弱,春季增加,夏季无显著变化。就变化趋势的空间分布而言,向表面波的能量输入由风场主导,而向表层地转流和非地转流的能量输入则由流场主导。这些机械能输入结果对进一步认识该海域的动力机制有重要意义。Wind not only drives the surface ocean circulations,but also provides the main source of kinetic energy for deep ocean movements.This study focuses on the wind energy input to the north part of the North Pacific,including wind energy input to surface wave,surface geostrophic currents and surface ageostrophic currents.Results based on SODA3(2000–2016)data show that there are obvious seasonal wind energy input gateways,which are the Subpolar Gyre for spring and autumn,the Eastern Pacific for summer and the Kuroshio Extension for winter respectively.The winter gateway gains the most wind energy among the four seasonal gateways,which is about 3−5 times higher than others.Since the beginning of the 21st century,wind energy input in winter gateway has weakened significantly,while increased in spring gateway,but has not changed significantly in summer and autumn gateway.For the spatial distribution of the trend in the 17 years,wind energy input to the surface wave is mainly dominated by the wind field,while wind energy input to the surface geostrophic current and ageostrophic current is dominated by the flow field.These mechanical energy input results are important for further understanding the ocean circulations in the North Pacific.

关 键 词：风能输入 门户区域 表面波 表层地转流 表层非地转流 

分 类 号：P732.1[天文地球—海洋科学]