Looking inside the Continents from Space: Insights into Earthquake Hazard and Crustal Deformation

GPS can provide very precise measurements of how individual points on the ground move, but such points are often sparsely distributed. This project uses differences in the radar returns acquired by the satellite at two different times to measure the displacement of one point over the intervening time interval. Displacements of a few millimeters or less can be measured in this way.

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