DESCANSO Performance Metrics
Figure 3a - GPS Measurements of Global Tectonic Plate Horizontal Motions
Figure 3b - GPS Measurements
of Surface Velocity Field in Southern California
The science products from the analyses show how the surface of the Earth is slowly deforming, due to the motion of tectonic plates. The vectors indicate direction and magnitude of motions on a global scale (Figure 3a) and in Southern California (Figure 3b). Velocities of less than 1 cm/yr are measured with mm/yr-level precision.
Jim Zumberge and Michael
Heflin
October 2002