Dr. Sebastien Leprince, GPS, Caltech

Despite the increasing availability of high quality optical satellite images, continuous monitoring of Earth’s surface changes is still of limited use due to technical limitations. To overcome these limitations, we have developed a processing chain to accurately orthorectify and co-register sets of pushbroom images with accuracy on the order of 1/20 of the pixel size. Combined with a precise correlation technique, this processing chain allows for accurate measurement of ground deformation. Applications related to earthquake ground deformation, ice flow, landslides, and sand dune migration are presented.
More information: http://www.tectonics.caltech.edu/slip_history/spot_coseis/