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《ACTA SCICENTIARUM NATURALUM UNIVERSITIS PEKINESIS》 2000-05
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Signal Detection of Global Climate Change and External Forcing Factors

HOU Zhangshuan\ LI Xiaodong (Department of Geophysics,Peking University,Beijing,100871)  
The application of the B\|spline wavelet analysis method to series of climate an d external forcing factors is introduced.Using lag\|correlation analysis method, in terpretative variances analysis method,phrase comparing method to the wavelet an alysis result,we not only gained the variation at different scales of the globa l temperature and El Nino signals,the location of the jump points and latent sca le of these series,but also indicated the magnitude,extent of the effect of exte rnal forcing factors on them.
【Fund】: 国家“九五”(95 11)“火山活动与气候变化”专题的资助项目
【CateGory Index】: P468
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