Fig. 2. LOS deformation velocity (descending) along the San Andreas fault system. a) Total LOS deformation velocity with red color denoting motion toward the satellite and blue away from the satellite. A second color scale is added to highlight the major subsidence in the Central Valley. b) LOS velocity from gpsgridder [Sandwell & Wessel , 2016] projected into the LOS (for illustration purposes only). b) Velocity variation/uncertainty is the deviation of the time series at each pixel from a linear regression fit. The velocity discontinuities between swaths are due to the change in look angle. d) Semi-vertical velocity is the LOS with horizontal velocity model [Zeng & Shen , 2017] removed. The triangles in d) mark the location of GNSS stations plotted in Fig 4b (black) and Fig 4c (gray).