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《Guangdong Meteorology》 2006-01
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Wavelet Analysis on Temperature and Precipitation in Zhanjiang and Shaoguan

XUE Yu-feng(Guangdong Ocean University,Zhanjiang 524005,China)  
By using Mexican-Hat wavelet transformation,multi-temporal-scale variations of mean temperature and annual precipitation in the past 50 years(1951~2000) in Zhanjiang and Shaoguan are discussed,as well as the abrupt change points of climate are identified.Results show that the temperature has 16,4,and 2-year oscillations in Zhanjiang,but only 5 and 3-year oscillations in Shaoguan.As for annual precipitation,11 and 4-year oscillations are found in Zhanjiang while 11,7 and quasi-4.5-year oscillations are identified in Shaoguan respectively.Study also shows that the abrupt change points of climate are related to the multi-temporal-scale variations.
【CateGory Index】: P467
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