澜沧—耿马地震前后水氡状态吸引子初探

本文采用“根据时间序列数据重建复杂系统动力学特征”的方法,对澜沧—耿马地震前后澜沧、普洱、思茅和芒市台的水氡旬均值进行了处理,得到震前澜沧.普洱和芒市台水氡状态吸引子维数d在1.0—3.0之间,这从理论上说明了澜沧—耿马地震孕育过程中此三台站水氡变化遵从某些确定性规律,并指出了这些确定性规律所依赖的基本变量数目范围,这对认识大震孕育过程中水氡变化的动力学行为具有一定意义。

A PRELIMINARY STUDY ON THE RADON STATE ATTRACTOR BEFORE AND AFTER LANCANG-GENGMAEARTHQUAKE

In this paper, the radon average values in every 10 days at Lancang, Puer and Mangshi stations before and after Lancang-Gengma Earthquake are processed by the method of "reestablishing the complex systematically-dynamic characteristic in light of the temporal sequence data". The obtained radon state attractor dimension d at those stations before the event is in the range of 1.0-3.0, suggesting that theoretically the radon variation follows some determinative regulations at those stations in the preparation process of the event and presenting as well the range of basic variables the determinative regulations rely on. This plays a certain role in understanding the dynamic behavior of radon variation in the preparation process of a large earthquake.