地震地磁观测与研究2023，Vol.44Issue(6)：78-85,8.DOI:10.3969/j.issn.1003-3246.2023.06.012
北京昌平兴寿镇地震监测井不同深度水温变化特征及机理分析
Characteristics and mechanism analysis of water temperature variation at different depths in Beijing Changping Xingshou well
摘要
Abstract
The same type of water temperature sensors in the Xingshou seismic monitoring well were placed at 400 m,600 m,and 700 m underground,respectively,for comparative observation.The differences in the amplitude of change,differential daily variation,mean square error,and co-seismic response characteristics of water temperature data were analyzed to reveal the strength of environmental disturbance signals at different underground depths and their impacts on the water temperature observation efficiency.The analysis shows that the sensor placed at 600 m underground is affected by the infiltration of fluids in the observed aquifer,and the water temperature data changes smoothly,making the abnormal information easier to identify.The sensors placed at 400 m and 700 m underground are affected by the relatively large water temperature gradient and the long distance from the observation aquifer roof,and the water temperature data is enhanced by the disturbance signal,making the abnormal information buried and difficult to identify.In order to improve the efficiency of water temperature observation,the effective depth of the water temperature sensor should be comprehensively evaluated according to the conditions of the well.关键词
水温/环境条件/传感器放置深度/异常信号强度Key words
water temperature/environmental condition/placement depth of sensor/intensity of abnormal signal引用本文复制引用
韩孔艳,费伯秀,崔博闻,孙小入..北京昌平兴寿镇地震监测井不同深度水温变化特征及机理分析[J].地震地磁观测与研究,2023,44(6):78-85,8.基金项目
2023年度北京市地震局面上科技项目(项目编号:BJMS-2023008,BJMS-2023009) （项目编号:BJMS-2023008,BJMS-2023009）
