沙河地震台地热对比观测分析  

ANALYSIS OF GEOTHERMAL COMPARATIVE OBSERVATION AT SHAHE SEISMOSTATION

作　　者：何案华[1] 赵刚[1] 薛娜[2] 王军[3] 郭藐西[1] 郭柏林[1] 付子忠[1] 

机构地区：[1]中国地震局地壳应力研究所,北京100085 [2]天津市地震局,天津300201 [3]中国地震台网中心,北京100036

出　　处：《大地测量与地球动力学》2009年第4期51-54,共4页Journal of Geodesy and Geodynamics

基　　金：公益性行业科研专项(H200708045);中国地震局地壳应力研究所基本科研业务专项(2DJ2008-01;J2209830)

摘　　要：通过对沙河地震台同一观测深度上两台数字式温度计产出的连续资料进行曲线拟合、离散分析等,认为两套仪器产出的观测数据真实可靠,温度变化趋势特征一致,温度值几乎恒定地相差0.007 5℃,是井下温度变化的真实反映;并且总结出在地热前兆台站安装两套地热仪进行同层温度对比观测的具体操作方法,从而解决了实际观测中出现数据异常时不能确认是前兆异常还是仪器故障的难点。By use of curve fitting and discretigation analyzing the data of two digital thermometer placed in the same depth at Shahe seismostation, we can conclude that the data are reliable, their change trends keep consistent, the temperature difference from each other is only 0. 007 5℃ ,almost constant and really reflect the downhole temperature variation. The article summarizes the concrete operation method for installing two sets of digital thermometers for comparative observation and solving the difficulty of excluding the instrument trouble when appear abnormal data.

关 键 词：对比观测 数字式温度计(SZW-1A) 趋势一致性 前兆异常 仪器故障 

分 类 号：P315.723[天文地球—地震学]