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海洋科学  2006 

太平洋东南海域表层地转流场的季节及年际变化特征

, PP. 51-58

Keywords: 太平洋东南海域,Topex/Poseidon卫星高度计遥感资料,表层地转流

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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°~120°W)表层流场的季节及年际变化特征。结果表明,南赤道流的季节变化主要体现在流速上,而秘鲁海流和西风漂流主要体现在流轴位置的移动上。表层流场的年际变化受ElNino影响,在ElNino期间,南赤道流和秘鲁海流均发生流向偏转现象,大部分海区流场被削弱(除低纬度海区外),而在其后的1998年LaNina期间,流场则重新被加强,西风漂流无明显的年际变化。

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