【摘要】 利用因子分析可以有效地找出多个变量的公共因子,找出隐含因素;基于季节趋势滤波方法,可以分析序列的周期成分和趋势变化特征,结合区域地震特征,确定序列的物理意义。本文将这两种方法结合,提出了完整的地球物理因子识别方法,并将其应用于唐山地震台跨断层形变短基线序列,获得了具有物理意义的三个公共因子,即远场构造因子、台站因子和近场构造因子。更多还原

【Abstract】 Based on factor analysis method,we can effectively find out the common factors in multiple variables and the hidden controlling factors.Furthermore,we can achieve the period components and trending change feature of the common factor sequence by the Seasonal-Trend Lowes(STL)method and confirm the geophysical meaning by connecting with other information.In this paper,we brought out the geophysical factor recognition method and applied it in the Tangshan short-baseline observation by combining with the two methods.We recognized three geophysical factors,which are far-field geological factor,stationary factor and near-field geological factor in the sequence.更多还原