2003年7～9月固原地电阻率异常变化分析  

ANALYSIS ON EARTH RESISTIVITY ANOMALIES OF GUYUAN STATION FROM JUL.TO SEP.IN 2003

作　　者：卫定军[1] 李英[1] 赵卫明[1] 

机构地区：[1]宁夏回族自治区地震局,宁夏银川750001

出　　处：《高原地震》2004年第4期49-54,48,共7页Plateau Earthquake Research

摘　　要：针对固原台视电阻率2003年7月出现的趋势上升变化,在环境、气候调查的基础上,利用水平层状介质模型反演固原台电性分层结构,计算了降雨量和地下水对其视电阻率的影响,认为大量降雨和地下水上升造成了该台视电阻率的上升。Apparent resistivity of Guyuan station appeared tendency ascendant changes from Jul.to Sep. in 2003.Based on surrounding and climate investigation,and using the model of level layered media,we invert electric structures of Guyuan station,analyze the relationship between rainfall and apparent resistivity,and the relationship between ground water and apparent resistivity.The results show that excessive rainfall and ascent of water level cause the apparent resistivity to rise.

关 键 词：视电阻率 降雨 固原 水平层状介质模型 

分 类 号：P315.722[天文地球—地震学]