SIGNAL DETECTION OF GLOBAL CLIMATE CHANGE AND EXTERNAL FORCING FACTORS

被引：0
|
作者：
李晓东
王在文
侯章栓
机构：
[1] Beijing 100871
[2] Department of Geophysics Peking University
来源：
Acta Meteorologica Sinica | 2001年 / 04期
关键词：
climate change; signal detection; compactly supported B-spline wavelet analysis; jump; point; intrinsic scale;
D O I：
暂无
中图分类号：
P467 [气候变化、历史气候];
学科分类号：
0706 ; 070601 ;
摘要：
In this paper,we displayed one-dimensional climate signals,such as global temperaturevariation,Southern Oscillation Index and variation of external forcing factors,on a two-dimensional time-scale plane using compactly supported wavelet decomposition.Using the lag-correlation analysis method,and interpretative variance analysis method,and phase comparisonmethod to the wavelet analysis result,we not only gained the variation on different scales to theglobal temperature and El Nino signals,the location of the jump point and intrinsic scale of theseseries,but also indicated the magnitude,extent and time of the effect of external forcing factors onthem.We also put forward reasonable explanation to the main variation of recent 140 years.
引用
收藏
页码：397 / 406
页数：10
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