A DIAGNOSTIC ANALYSIS OF MULTI-TIME-SCALE VARIATIONS OF TEMPERATURE IN CHONGQING

Liu De; Li Yonghua; Yang Zuoming; Xiang Bo; He Juanxiong

Vol.15, NO.2, 2004

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2004 > 15(2): 251-256

Liu De, Li Yonghua, Yang Zuoming, et al. A diagnostic analysis of multi-time-scale variations of temperature in Chongqing. J Appl Meteor Sci, 2004, 15(2): 251-256.

Citation:

Liu De, Li Yonghua, Yang Zuoming, et al. A diagnostic analysis of multi-time-scale variations of temperature in Chongqing. J Appl Meteor Sci, 2004, 15(2): 251-256.

Liu De, Li Yonghua, Yang Zuoming, et al. A diagnostic analysis of multi-time-scale variations of temperature in Chongqing. J Appl Meteor Sci, 2004, 15(2): 251-256.

Citation:

Liu De, Li Yonghua, Yang Zuoming, et al. A diagnostic analysis of multi-time-scale variations of temperature in Chongqing. J Appl Meteor Sci, 2004, 15(2): 251-256.

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A DIAGNOSTIC ANALYSIS OF MULTI-TIME-SCALE VARIATIONS OF TEMPERATURE IN CHONGQING

1.
Meteorological Observatory of Chongqing , Chongqing 400039
2.
Department of Atmospheric Sciences of Nanjing University , Nanjing 210093

Received Date: 2002-10-22
Rev Recd Date: 2003-07-20
Publish Date: 2004-04-30

Abstract

Abstract

Based on MHF wavelet transform during the past long years in Chongqing the variations of temperature were analyzed. Some multi-scale and jump features of variations were discovered. Results show that the variations of temperature in Chongqing contain obvious staggered features. The variation tendency of temperature is descend. It is opposite to the tendency of the variations of temperature of the global, northern hemisphere and China.
- Temperature variations;
- Multi-time-scale;
- Wavelet t ransfo rm

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References(8)

Figures and Tables

图 1 重庆市年平均气温距平(a)(年平均气温距平序列趋势: ---,年平均气温序列: ———,多项式拟合: ━)及其小波变换(b、c、d)

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图 2 全球(a)、北半球(b)、中国(c)年平均气温距平(说明同图 1) 及其时间尺度为32 a(d)、16 a(e)和8 a(f)小波系数(━ 全球,——— 北半球,—°— 中国,---重庆)

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表 1 全球、北半球、中国气温变化小波系数序列(n=78) 与重庆的相关系数

References

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