CGPS-SPGPS Comparison

Top panel shows a continuous GPS station located in Yellowstone National Park. The antenna is secured to the ground by several metal poles, and a nearby set of solar panels provides power to the station. Lower panel shows a semipermanent GPS station, with a small solar array for power and an antenna located close to the ground. Both the antenna and solar panel are removable, but the antenna can be reinstalled in the exact same location year after year to track motion of that precise point over time.