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海洋科学  2005 

太平洋东南海域海面高度的季节及年际变化特征

, PP. 37-42

Keywords: 太平洋东南海域,Topex/Poseidon,海面高度距平

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Abstract:

利用1992~2001年Topex/Poseidon卫星高度计遥感资料分析了太平洋东南海域(5°~55°S,70°~110°W)海面高度的季节及年际变化特征。研究结果表明,海区海面高度的季节变化总体上受太阳辐射季节变化的影响,南半球夏季(1~3月)和秋季(4~6月)大致为正距平,而冬季(7~9月)和春季(10~12月)大致为负距平,1996~1998年除外;同时,受季节性风场、海区罗斯贝波等的影响,海面高度变化的区域特征性很强。海面高度的年际变化在低纬处和沿岸还受ElNino影响。

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