亚太季风各子系统的准两年变化特征及其比较
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摘要: 亚太季风各子系统(南亚季风、南海季风、西北太平洋季风和东亚副热带季风)都具有显著的准两年变化周期,利用4个季风指数研究它们准两年模态振幅的演变和相关的环流变化。结果表明,亚太季风各子系统的准两年模态有明显的年代际变化,并不是一直有效地影响季风区。与亚太季风各子系统准两年变化相关的海温异常,低层风场也有不同的分布特点和演变特征。
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