The long-term trend of the sea surface wind speed and the wave height (wind wave, swell, mixed wave) in global ocean during the last 44 a

查看全文 作　　者：ZHENG [1,2]Chongwei;ZHOU [1]Lin;HUANG [1]Chaofan;SHI [1]Yinglong;LI [1]Jiaxun;LI [1]Jing

机构地区：[1]College of Meteorology and Oceanography,People's Liberation Army (PLA) University of Science &Technology;[2]Meteorological Unit.No.92538 Army of PLA

出　　处：《Acta Oceanologica Sinica》索引2013年第32卷第10期,共4页

基　　金：The National Basic Research Program of China under contract No.2012CB957803 摘　　要：Utilizing the 45 a European Centre for Medium-Range Weather Forecasts(ECMWF)reanalysis wave data(ERA-40),the long-term trend of the sea surface wind speed and(wind wave,swell,mixed wave)wave height in the global ocean at grid point 1.5×1.5 during the last 44 a is analyzed.It is discovered that a majority of global ocean swell wave height exhibits a significant linear increasing trend(2–8 cm/decade),the distribution of annual linear trend of the significant wave height(SWH)has good consistency with that of the swell wave height.The sea surface wind speed shows an annually linear increasing trend mainly concentrated in the most waters of Southern Hemisphere westerlies,high latitude of the North Pacific,Indian Ocean north of 30 S,the waters near the western equatorial Pacific and low latitudes of the Atlantic waters,and the annually linear decreasing mainly in central and eastern equator of the Pacific,Juan.Fernandez Archipelago,the waters near South Georgia Island in the Atlantic waters.The linear variational distribution characteristic of the wind wave height is similar to that of the sea surface wind speed.Another find is that the swell is dominant in the mixed wave,the swell index in the central ocean is generally greater than that in the offshore,and the swell index in the eastern ocean coast is greater than that in the western ocean inshore,and in year-round hemisphere westerlies the swell index is relatively low. 关键词：全球海洋海面风速混合波波高涌浪太阳能热水器赤道西太平洋线性趋势

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The long-term trend of the sea surface wind speed and the wave height (wind wave, swell, mixed wave) in global ocean during the last 44 a

参考文献(15)

引证文献(26)

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