GPS Imaging of Vertical Bedrock Displacements: Quantification of Two?Dimensional Vertical Crustal Deformation in China

The Global Positioning System (GPS) derived bedrock displacements respond to multiple geophysical effects, ranging from surface elastic loads tectonic sources or viscoelastic uplifts stemming Earth’s viscous mantle. In this study, the GPS-inferred vertical crustal velocities are rigorously estimated in mainland China. We integrate GPS velocity field with Gravity Recovery and Climate Experiment (GRACE) GRACE Follow-On (GFO) data, adopting an empirical Spatial Structure Function (SSF), image deformation China respect International Terrestrial Reference Frame (ITRF) 2014. present four profiles across China, which indicate that our new robust results superior kriging. Furthermore, we use GRACE/GFO products account for due mass changes isolate signals at sites within 2002 2019. By integrating measurements, reveal long-term spatial patterns of motion different blocks conclude significant steep gradients occur block boundaries attributable locking strain accumulation on active boundary faults.