| 北太平洋海浪场和风场特征分析 |
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| 引用本文： | 徐秀枝,诸裕良,冯向波,闫敏.北太平洋海浪场和风场特征分析[J].海洋工程,2017,35(1):112-120. |
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| 作者姓名： | 徐秀枝 诸裕良 冯向波 闫敏 |
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| 作者单位： | 河海大学 港口海岸与近海工程学院，南京 210098,河海大学 港口海岸与近海工程学院，南京 210098,河海大学 港口海岸与近海工程学院，南京 210098,河海大学 港口海岸与近海工程学院，南京 210098 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助（2016B10414；2016B20814；2015B26414） |
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| 摘 要： | 利用欧洲中尺度天气预报中心(ECMWF——European Centre for Medium-Range Weather Forecasts)的1979年1月2014年12月逐6 h的ERA-Interim有效波高和10 m风场资料,分析了近36年期间北太平洋海域海浪场和风场的变化特征。结果表明:1)中低纬度的西北太平洋波高有逐年线性递增趋势,大约在0.2~0.6 cm/a,而低纬度的太平洋东北部海域则以-0.4~-0.2 cm/a的趋势减小。2)风速线性变化趋势显著的区域主要集中在太平洋东北部低纬度海域,约以1.0~2.0 cm/(s·a)的速度在增加。而日本岛四周、菲律宾半岛以南等海域大都以-1.0~-0.5 cm/(s·a)的速度减小。3)北太平洋海域波高和风速都具有明显的季节变化特征,两者具有很强的相关性。西风带内有一个个波高超过10 m的风暴圈,其波高受风浪和涌浪的双重作用。这可为航海、海洋工程设计、军事及海洋能开发与利用等方面提供科学依据。
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| 关 键 词： | ERA-Interim 北太平洋 海表风速 波高 线性趋势 时空分布 |
Analysis of characteristics of the wind and wave fields in the North Pacific |
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| XU Xiuzhi,ZHU Yuliang,FENG Xiangbo and YAN Min.Analysis of characteristics of the wind and wave fields in the North Pacific[J].Ocean Engineering,2017,35(1):112-120. |
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| Authors: | XU Xiuzhi ZHU Yuliang FENG Xiangbo and YAN Min |
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| Institution: | College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China,College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China,College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China and College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China |
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| Abstract: | By using newly ERA-Interim sea surface wind field and wave field from1979 to 2014 developed by the European Centre for Medium-Range Weather Forecasts (ECMWF), the characteristics of wave climate in the North Pacific Ocean were analyzed. Results show that, 1) the significant wave height shows an obvious annually linear increasing trend, about 0.2~0.6cm in the low latitudes of the northwest Pacific, with decreasing tendency (about -0.4~-0.2cm/a) in the low latitudes of the northeast Pacific. 2) Sea surface wind speed in the low latitudes of the northeast Pacific has an obvious increasing tendency, about1.0~2.0cm/(s·a). The area with decreasing tendency (about -1.0~-0.5 cm/(s·a)) is mainly located in the Japanese islands and the south of the Philippines peninsula. 3) The wind field and wave field are significantly affected by the monsoon in the North Pacific, which have a strong correlation. It occurs several store circles with wave heights over 10m in the westerlies, where it is affected by wind wave and swell. These can provide certain guidance for construction. |
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| Keywords: | ERA-Interim the North Pacific wind speed significant wave height linear trend temporal and spatial distribution |
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