Abstract:In this paper, we use the equation of rotation in the entire block and the linear strain model(RELSM) of block motion to describe the internal deformation of the block. We use the robust estimation method with high breakdown point to screen abnormal stations. The station screening and fitting analysis of the velocity field data of GPS observations from crustal movement observation network of China in Bohai rim region are discussed. The result shows that the method can better balance the smoothness of the overall motion of the block and differences in local tectonic movements. Moreover, it can also suppress the influence of gross error, so as to obtain a better velocity field fitting result.
LEI Qiankun,ZHANG Jun,FAN Chengcheng et al. Method and Application of Anomalous Station Screening by Taking Account of Intraplate Deformation with Robust Estimation[J]. jgg, 2020, 40(7): 677-681.