Analyses of crustal movements using VLBI and GPS measurements

Geodetic satellite and space techniques The growing quantity of permanent stations conducting GNSS (Global Navigation Satellite Systems) and VLBI (Very Long Baseline Interferometry) observations has elevated these surveying methods as effective tools for diverse geodetic and geodynamic purposes. Geodetic satellite/space techniques have been commonly utilized in several applications including earthquake effects, crustal deformations, tectonic plate activity, velocity estimation, water vapor, volcanic activity, landslides, and location. The study focused on Bernese 5.2. The goal is to compare the velocities derived from GNSS Software and PORT-GFZ VLBI Software with the velocities of 18 distinct tectonic plate motion models obtained through the "Plate Motion Calculator Software," as well as the velocities estimated using Bayesian Estimation, LOWESS, and LSF methods. Both local and global sensitivity metrics were computed to assess application networks based on sensitivity measures. The investigation involved calculating velocities of IGS and IVS stations using various models and techniques. The comparisons demonstrate how various estimation strategies might enhance the comprehension of geodetic data.