降雨对临汾站短水准观测干扰的分析

Analysis of Rainfall Interference on Short Leveling of Linfen Seismic Station

通过对临汾地震监测中心站短水准跨断层BM4-BM1测段高差的分析,研究测站高差与降水的关系。结果发现,观测数据曲线变化形态和幅度主要与降水持续时间、降水量大小有关;当降水量大于300 mm时,测段(或测站)观测数据曲线发生明显变化,变化形态以大幅下降为主。该研究结论可为观测资料的分析及异常核实提供参考。

Through the analysis of the height difference of the short leveling across fault M4-BM1 section of Linfen Earthquake Monitoring Center Station,the relationship between the height difference of the station and precipitation is studied.The results show that the change form and amplitude of the observation data curve are mainly related to the duration and amount of precipitation.When the precipitation is greater than 300mm,the observation data curve of the survey section(or station)will change significantly,and the change form is mainly a sharp decline.The research conclusion can provide a reference for the analysis of observation data and anomaly verification.