回归分析方法在检验地磁内在质量中的应用实例  

THE APPLIED EXAMPLES OF REGRESSION ANALYSIS IN EXAMINING QUALITY OF MAGNETIC DATA

作　　者：王泽昌[1] 

机构地区：[1]辽宁省地震局

出　　处：《防灾减灾学报》1991年第2期69-74,共6页Journal of Disaster Prevention And Reduction

摘　　要：本文从辽宁省1989、1990两年的地磁资料中,分别随机抽取了各半年同期总场F的资料.采用回归分析方法,计算了各地磁台与对比台的相关系数r和剩余方差s.由r、s结果,分析了它们与观测条件、仪器精度及稳定性、在规定时间内的观测组数之间的关系.对内在质量较高的总场F观测资料,γ的最低取值标准进行评估.Analysis of the present article is based on data of geomagnetic fieid F randomly picked in observations of Liaoning observatories from April to September for each year, 1989 and 1990. Regression analysis method were applied to computing correlation coefficient r and residual variance s between various geomagnetic stations and the reference observatory with data picked. According to calculation results of r and s, the relations between they , observation condition, precision and stability of instrument, and observation times within the fixed time were analyzed. Finally, We evaluated the standard of minimum of r which were obtained from observations of total geomagnetic field F with better data quality.

关 键 词：地磁资料 观测组 相关系数 总场 观测条件 仪器精度 定量指标 检验方法 周期特征 显著性检验 

分 类 号：P315[天文地球—地震学]