Identification of Main Interference Factors in Geoelectric Field Observa-tion at Manzhouli Seismic Station
[Purposes]Based on the geoelectric field observation data of Manzhouli Seismic Station since 2020,the interference factors of the geoelectric field are identified.[Methods]This paper compares and then analyzes the normal change pattern of the geoelectric field data curve of the station with the change pattern of various data curves generated under different interference conditions,observes and then refers to the changes of other quality parameters such as relative change rate and K index,combining with field investigation.[Findings]The interference factors of the electric field in the platform mainly include:the leakage interference of the vegetable greenhouse transmission line near the survey area;Leakage interfer-ence of highway maintenance station equipment;Three main interference factors such as geoelectric storm interference and the corresponding interference characteristics.[Conclusions]Relevant research can make the station more accurate and fast in the daily data analysis and processing of geoelectric field,which can provide reference for data application and scientific research of geoelectric field data analysis and processing,anomaly verification and geoelectric field observation data in seismic monitoring and pre-diction under other similar conditions.
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