CLUSTER ANALYSIS OF CLIMATE JUMP
Qian Cheng, Yan Zhu · Chinese Journal of Geophysics · 1998
The Climate data is a time series which can be considered as a series of ordered samples. In this paper, a new method-hierarchy cluster algorithm of ordered samples is presented. First,the samples are processed by smoothing fit.Then the cluster analysis has been used in the analysis of climate data. It is shown that the 1920th year is the jump point. Moreover, jump points of lower each hierarchy have been discovered.