Three-dimensional surface deformation derived from airborne interferometric UAVSAR: Application to the Slumgullion Landslide

What is it about?

We used a NASA radar system attached to an airplane to measure the motion of a landslide in Colorado from four different directions. Then we converted these measurements to a map of the 3D motion of the landslide surface and used that map to estimate the thickness of the landslide.

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Why is it important?

It is not easy to know how thick are the active parts of landslides without detailed ground measurements or even drilling, which is difficult in many places. By making these measurements from an airplane, we can estimate the thickness without having to send equipment on the ground. This will help understanding of which landslides may have risk of future devastating collapse.