Quality evaluation and data analysis of water level observation data in well at Changping Seismic Station
We systematically organized the observation data of underground fluid digital well water level at Changping Seismic Station from 2002 to 2023,evaluated the continuity,completeness,and internal quality of the data,and analyzed the long-term dynamic changes of the water level data.The results indicate that the water level observation data of the Changping well is continuous and reliable,and the observation instruments are stable.The daily variation characteristics of well water level are obvious,with clear earth tide effect.The long-term dynamic characteristics are consistent with the dynamic characteristics of groundwater level in Changping district,mainly affected by agricultural irrigation water and reservoir ecological water supplement.There is a significant negative correlation between well water level and air pressure,and in addition,the change rate curve of well water level after first-order difference processing is correlated with earthquakes.The digital observation of water level in wells at Changping Seismic Station can serve as an auxiliary observation method for judging earthquake precursor anomalies.
digital observationwell water levelinternal qualitydynamic characteristicsatmospheric pressure effect
国家科技期刊平台
NSTL
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