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RELATIONSHIPS BETWEEN PRECEDING PACIFIC SEA SURFACE TEMPERATURES AND SUBTROPICAL HIGH INDEXES OF MAIN RAINING SEASONS
With correlation analysis and factor analysis methods,the effects of preceding Pacific SSTs on subtropical high indexes of main raining seasons are discussed. The results of correlation analysis show that the effects of SSTs on five subtropical high indexes differ in seasons and regions. The variation of SSTs mostly affects the area and intensity indexes of the subtropical high,followed by the western ridge index,and the effect on the ridge line index is more remarkable than on the north boundary index. The results of factor analysis reveals that the first common thctor of SST of each season reflected mainly the inverse relation of SSTs variation between the central and eastern part of equatorial Pacific and the western Pacific,which correlates better with the subtropical high indexes in the main raining seasons than other common factors of SST. The analysis of interdecadal variation indicated that the variation of SSTs was conducive to the emergence of the La Ni(n)a event before the end of 1970s,such that in the summer the subtropical high is likely to be weaker and smaller and located eastward and northward. After the 1980s,the opposite characteristics prevailed.
作 者： YAO Yu YAN Hua-sheng 作者单位： YAO Yu(Kunming Meteorological Observatory,Kunming 650034 China;Institute of Resource and Earth Science,Yunnan University,Kunming 650091 China)YAN Hua-sheng(Institute of Resource and Earth Science,Yunnan University,Kunming 650091 China)
刊 名： 热带气象学报(英文版) 英文刊名： JOURNAL OF TROPICAL METEOROLOGY 年，卷(期)： 2009 15(1) 分类号： P461.2 关键词： climatology relationship correlation analysis factor analysis sea surface temperature subtropical high index【RELATIONSHIPS BETWEEN PRECEDING PACI】相关文章：
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