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近45年北太平洋海表风速特征统计分析
引用本文:马亚维,丛爱丽,田妍妍,刘天宁,周欣欣.近45年北太平洋海表风速特征统计分析[J].科技资讯,2013(31):105-111.
作者姓名:马亚维  丛爱丽  田妍妍  刘天宁  周欣欣
作者单位:[1]青岛市气象局,山东青岛266003 [2]91286部队气象台,山东青岛266003 [3]91379部队气象台,山东青岛266002 [4]92538部队,辽宁大连116041 [5]曲阜师范大学,山东曲阜273165
摘    要:本文利用来自欧洲中期天气预报中心(ECMWF——European Centre for Medium-Range Weather Forecasts)的1957年8月—2002年7月逐6 h的ERA-40海表10 m风场资料,统计分析了近45年期间北太平洋海表风场的月变化特征,以及多年平均海表风速的分布特征,为海洋水文保障、海洋工程等提供参考。结果表明:(1)北太平洋的海表风场具有明显的月变化特征,10月至来年2月的风速整体高于其余月份。(2)从年平均风速来看,阿留申群岛附近海域为北太平洋年平均风速的明显大值中心,年平均风速基本在8 m/s以上;中纬度海域的年平均风速在6~7 m/s;15°N-20°N的东部海域存在一相对大值区,年平均风速在7 m/s以上;赤道西部海域的年平均风速较小,基本在4 m/s以内。

关 键 词:ECMWF  ERA-40海表10m风场  北太平洋  海表风场  月变化特征  年平均风速

Statistics Analysis of Seasonal Characteristics of Sea Surface Wind Field in the North Pacific Ocean During the Last 45 Years
MA Yawei,CONG Aili,TIAN Yanyan,LIU Tianning,ZHOU Xinxin.Statistics Analysis of Seasonal Characteristics of Sea Surface Wind Field in the North Pacific Ocean During the Last 45 Years[J].Science & Technology Information,2013(31):105-111.
Authors:MA Yawei  CONG Aili  TIAN Yanyan  LIU Tianning  ZHOU Xinxin
Institution:1.Tsingtao Meteorological Administration,Tsingtao 266003,China=2.No.91286 Army of PLA,Tsingtao 266003,China= 3.No, 91379 Army of People's Liberation Army,Tsingtao 266002,China;4.No.92538 Army of People's Liberation Army,Dalian 116041,China;5.Qufu Normal University ,Qufu 273165,China)
Abstract:By using ERA-40 sea surface wind field from ECMWF(European Centre for Medium-Range Weather Forecasts),the seasonal characteristics of sea surface wind field in the North Pacific Ocean were analyzed.Results show that,(1)There is obviously seasonal variability in wind speed and wind direction.(2)From annual average wind speed,the Aleutian Islands off the coast of the North Pacific annual average wind speed significantly large value center,the annual average wind speed substantially above 8m/s;mid- latitude waters of the annual average wind speed in the 6-7m/s;15°N-20°N east coast there is a relatively large area,the annual average wind speed is more than 7m/s;equatorial waters west of the annual average wind speed within 4m/s.
Keywords:ECMWF  ERA-40 sea surface wind field data  North Pacific Ocean  Wind field  Monthly characteristics  Annual wind speed
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