摘要
通过对2015~2019年腾冲地震台地电阻率观测数据进行分析,发现腾冲地震台地电阻率受降雨影响较为明显。降雨量越大,地电阻率下降的幅度越大,且降雨对地电阻率的干扰比较复杂,有一定即时效应,部分干扰也存在一定时间的滞后效应。通过褶积滤波法和多元回归法定量模拟降雨对地电阻率的短期、中期和长期的影响过程,可以有效剔除降雨对地电阻率造成的干扰,从而提升腾冲地震台地电阻率观测质量。
Based on the analysis of the observation data of the geoelectric resistivity at Tengchong Seismic Station from 2015 to 2019,it is shown that the geoelectric resistivity at Tengchong Seismic Station is obviously affected by rainfall.The greater the rainfall is,the greater the decline of the geoelectric resistivity is.Moreover,the interference of rainfall on the geoelectric resistivity is complex,which not only has a certain immediate effect,but also has a certain time lag effect.The convolution filtering method and multiple regression method is used to quantitatively simulate the short-term,medium-term and long-term effects of rainfall on geoelectric resistivity,which can better removed the interference caused by rainfall on geoelectric resistivity,so as to improve the observation quality of ground resistivity at Tengchong Seismic Station.
作者
番绍辉
缪素秋
黎朕灵
段胜朝
邵维晔
FAN Shaohui;MIAO Suqiu;LI Zhenling;DUAN Shengchao;SHAO Weiye(Yunnan Earthquake Agency,Tengchong 679100,China)
出处
《高原地震》
2021年第3期33-40,共8页
Plateau Earthquake Research
关键词
地电阻率
降雨
褶积滤波法
多元回归法
干扰
Geoelectric resistivity
Rainfall
Convolution filtering method
Multiple regression method
Interference
