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REGIONAL DIFFERENCES OF TIME-FREQUENCY FEATURE IN HEAT CONTENT OF THE WESTERN PACIFIC WARM POOL
Author(s): 
Pages: 608-614
Year: Issue:  6
Journal: OCEANOLOGIA ET LIMNOLOGIA SINICA

Keyword:  西太平洋暖池热含量时频特征区域性;
Abstract: 根据1955-1999年间的JEDAC月平均海温资料,利用Morlet小波变换方法,对西太平洋暖池东、西代表区热含量的时(间)-频(率)特征进行了分析,并用交叉谱分析方法探讨了两海区热含量间的耦合振荡.结果表明,暖池热含量的时频特征具有明显的区域性,即暖池东、西区热含量的年际和年代际变化都是反相的,且其年际变化的时频特征有较大差异;暖池东、西区热含量间主要存在着年际(43个月)和年代际(172个月)时间尺度的反位相耦合振荡.
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