地电阻率的分数维及其前兆特征  

FRACTIONAL DIMENSION OF EARTH RESISTIVITY AND ITS PRECURSORY CHARACTERISTICS

作　　者：赵和云[1] 梁子彬[1] 

机构地区：[1]国家地震局兰州地震研究所

出　　处：《地震》1992年第1期11-17,共7页Earthquake

摘　　要：本文利用关联维数的计算方法处理了昌黎地电台、青县地电台1970年至1978年地电阻率日均值资料。结果表明:地电阻率时间序列存在分维结构,并且在地震前有明显的降维变化。显然,这一特征对地震预报有重要的意义。This paper processed the daily mean data of the earth resistivity recorded at Changli and Qingxian terrameter stations from 1970 to 1978 using the computing method of the association dimension. Results show that the time sequence of earth resistivity displayed a fractional structure and an obvious reduction of dimensional variation before earthquakes. Obviously, such a feature is of important significance for the earthquake prediction.

关 键 词：地震前兆 地电阻率 分数维 

分 类 号：P315.7[天文地球—地震学]