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重庆市年平均气温变化多时间尺度特征的诊断研究
引用本文:刘德,李永华,阳作明,向波,何卷雄.重庆市年平均气温变化多时间尺度特征的诊断研究[J].应用气象学报,2004,15(2):251-256.
作者姓名:刘德  李永华  阳作明  向波  何卷雄
作者单位:1.重庆市气象台, 重庆 400039
基金项目:重庆市科技攻关项目“重庆市气候异常基本规律及形成原因研究”资助
摘    要:利用长年代气温资料讨论了重庆市年平均气温的多时间尺度特征,结果表明:重庆市近几十年气温变化有明显的阶段性,但总的趋势是下降的,这与同期全球、北半球及中国气温有显著上升趋势有差异。

关 键 词:气温变化    多时间尺度    小波变换
收稿时间:2002-10-22
修稿时间:2002年10月22

A Diagnostic Analysis of Multi-time-scale Variations of Temperature in Chongqing
Liu De Li Yonghua Yang Zuoming Xiang Bo.A Diagnostic Analysis of Multi-time-scale Variations of Temperature in Chongqing[J].Quarterly Journal of Applied Meteorology,2004,15(2):251-256.
Authors:Liu De Li Yonghua Yang Zuoming Xiang Bo
Institution:1.Meteorological Observatory of Chongqing , Chongqing 4000392.Department of Atmospheric Sciences of Nanjing University , Nanjing 210093
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.
Keywords:Temperature variations Multi-time-scale Wavelet transform
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