地电异常矩形脉冲信号与火山喷发间相关性分析

Study on the Correlativity Between Seismic-electrical Abnormal Rectangle Pulsation Signals and Volcano Eruptions

以1991-1999年为统计时间段,以北京工业大学地震研究所南北方向地电脉冲仪所记录到的地电异常矩形脉冲信号和全球范围内的火山喷发事件为研究对象.按日选取信号序列sdl(i)、sd2(i),按月选取信号序列sml(i)、sm2(i)及日喷发序列ved(i)和月喷发序列vem(i),分别计算相关系数Rsd;ved(m)、Rsd2,ved(m)、Rsml,vem(m)、Rsm2,vem(m),并选定显著性水平α=0.01进行相关系数的显著性检验,根据检验结果认为,地电异常矩形脉冲信号的出现确与火山喷发相关.

The authors put emphasis on the statistic and analysis of seismic-electrical abnormal rectangle pulsation signals and volcano data worldwide from 1991 to 1999. The worldwide seismic-electrical and volcano data are transformed into appropriate statistic models, which are sdl(i), sd2(i), sml(i), sm2(i), ved(i) and vem(i). Correlation coefficients, which are Rxdl,ved(m), Rsd2,ved (m),Rsml,vem (m),Rsm2,vem(m) between signal models and volcano eruption models are calculated and tested. The results show that there is relationship between the seismi-electric abnormal rectangle pulsation signals and volcano eruptions.