By using the Multi-Taper Method of Spectrum Analysis (MTM), method of wavelet transform analysis, and the Yamamoto method, the quasi-periodicities and multiple time-scale features of the T m were studied.

• 采用多窗谱分析、小波分析和Yamamoto突变检测分析等方法综合研究了重建的高原春季最高气温序列的准周期性及多尺度突变特征。