太原基准地震台数字化地磁资料质量分析  

Quality Analysis on Digital Geomagnetic Data of Taiyuan Reference Seismological Station

作　　者：曹文强[1] 张亮娥[1] 王新胜[1] 韩胜[1] 

机构地区：[1]太原大陆裂谷动力学国家野外科学观测研究站,山西太原030025

出　　处：《山西地震》2010年第3期18-22,共5页Earthquake Research in Shanxi

摘　　要：为了对太原基准地震台数字化仪器及地磁资料作一准确评价,利用太原基准地震台地磁相对和绝对资料为主要研究对象,同时收集兰州、乾陵、红山地磁台的地磁资料作为参考进行对比分析,结果表明,太原基准地震台相对观测仪器M15、GM4运行稳定,能够真实记录场源的变化,绝对观测仪MingeoDIM优于CTM-DI。同时存在受外界环境影响较大和存在背影噪声大的问题。In order to evaluate accurately on digital instruments and geomagnetic data of Taiyuan Reference Seismological Station,the absolute and relative geomagnetic data have been studied as main objects in this paper.In addition,a contrast analysis on geomagnetic data have also been made by taking the geomagnetic data of Lanzhou,Qianling and Hongshan stations as reference.The results indicate that the relative observation instruments M15 and GM4 run stably and can record the real variation in field and source.Both absolute observation instruments,MingeoDIM and CTM-DI,are affected seriously by outside environment and have strong background noise.Relatively,the MingeoDIM is better than CTM-DI.

关 键 词：地磁测量 地磁记录 地磁日变化 

分 类 号：P315.6[天文地球—地震学] P315.721[天文地球—固体地球物理学]