四川姑咱海子泉水氡数据动态特征研究  

Study on Dynamic Characteristics of the Radon from Groundwater Observed in the Guza Haizi Spring

作　　者：刘华姣 田思留 张映 刘涛[2] 梁慧[1] 廖绍欢 LIU Huajiao;TIAN Siliu;ZHANG Ying;LIU Tao;LIANG Hui;LIAO Shaohuan(Chengdu Earthquake Monitoring Center Station of Sichuan Earthquake Agency,Sichuan Chengdu 610041;Kangding Earthquake Monitoring Center Station of Sichuan Earthquake Agency,Sichuan Kangding 626001)

机构地区：[1]四川省地震局成都地震监测中心站,四川成都611730 [2]四川省地震局康定地震监测中心站,四川康定626001

出　　处：《四川地震》2023年第4期2-7,共6页Earthquake Research in Sichuan

基　　金：四川省地震局地震科技专项(LY2317)资助.

摘　　要：系统梳理了四川姑咱海子泉1971—2023年水氡连续观测数据,通过与降雨、气压、气温等对比分析,探讨了水氡数据干扰动态变化,利用傅里叶滑动和残差法对干扰数据进行了矫正,并对矫正后的数据进行震例分析。结果显示:通过上述方法得到的姑咱海子泉水氡数据对震中距在200 km范围内M_(S)≥6.0地震有着良好的映震效能,该分析方法可作为前兆异常识别的一种有效手段。We systematically analyzed the radon data of groundwater observed continuously in the Guza Haizi spring from 1971 to 2023.Comparing with rainfall,atmospheric pressure,and temperature,we discussed the dynamic changes of radon data caused by different interference factors.The interference data were corrected by the Fourier sliding and residual method.We further used the corrected data to analyze earthquakes.The results showed that the method can help us retrieve effective information of earthquake precursory in radon in the Guza Haizi spring under the seismic condition with an epicenter distance less than 200 km and a magnitude greater than M_(S)6.0.This method can be used as an effective way to identify earthquake precursor anomalies.

关 键 词：姑咱海子泉 水氡 傅里叶滑动 残差 地震前兆 

分 类 号：P315.7[天文地球—地震学]