小波分析在农业气象灾害周期分析中的应用

利用小波变换时域局部性的特点,对南宁市1951—2006年的春季低温、寒露风、霜冻期、安全生育期的发生时间及天数的时间序列资料及1955-2006年历年最低气温的发生时间的时间序列资料进行了小波分析。研究了南宁市在不同时间尺度上的气象变化状况,指出以上气象变化的阶段性、周期性和突变性等特征,揭示了长期的气象资源信息变化规律。

Wavelet analysis of Agro-meteorological Disasters in the Application

By using wavelet transform domain localized characteristics of Nanning City in the 1951-2006 Spring hypothermia,cold dew wind,frost,safe growth occurred in a few days time and time series data;1955-2006 calendar year minimum temperature of the occurrence of the time series data for the wavelet analysis.Of Nanning City in different time scale changes in the weather,that these short-term weather changes,and the cyclical nature of mutations,revealed the long-term meteorological changes of information resources...