U-071 - Measuring Slope Displacements at Slumgullion Landslide
PI: Dr. Mylène Jacquemart
Project Lead: Brendan Hodge
Funding Source: None
Location: Hinsdale County, Colorado
Dates: 2018-06-12 to 2018-06-16
Project Summary
Slumgullion landslide is a perfect outdoor laboratory to compare a variety of techniques aimed at measuring slope displacements. The original scope of this work was to compare results from a terrestrial radar interferometer (TRI) to those from Structure-from-Motion (SfM) acquired with UAVs. We now also plan to test the TRI measurements against a stereo camera system and hopefully the UNAVCO VZ-6000. Since there are also local strain meters in place at Slumgullion, we will be able to build a comprehensive framework that will facilitate decision making in operational slope monitoring projects for agencies such as the Colorado Department of Transportation. We have obtained preliminary approval from the Forest Service to place and leave our instruments on site for the duration of the study. During the fieldwork in June we will also acquire SfM data, both with and without ground control points and set up the stereo camera system. The measurements from the strain meters are available year round. Conveniently, colleagues at UNAVCO acquired some SfM data over Slumgullion last year, and we will be able to compare our data against their data also, allowing us to evaluate the influence of different camera platforms on the final results. We will also be be able to evaluate the usefulness of data that was acquired with a very different purpose.