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Faculty: Jansma HARLS-CS aids work underway by Jansma that emphasizes using remote sensing techniques, including airborne laser altimetry, digital elevation modeling, multispectral image analysis, synthetic aperture radar interferometry (INSAR), and Global Positioning System (GPS) geodesy, to address a variety of geoscience problems . Current focus areas are 1) fault displacements and concomitant seismic hazard in the northeastern Caribbean, the Lesser Antilles, and the New Madrid Seismic Zone; 2) ground subsidence due to aquifer depletion in eastern Arkansas as measured by GPS geodesy and INSAR; 3) bald Earth topography, error analysis, accuracy assessment, and cross-correlation of elevations in high-relief vegetated terrains from SLICER (Scanning Lidar Imager of Canopies by Echo Recovery) data, kinematic GPS observations, U.S. Geological Survey (USGS) digital elevation models (DEMs), and SAR interferograms generated from airborne (STAR 3i) and space-based (repeat orbit interferometry) radar sensors; and 4) steady-state creep versus catastrophic sector collapse on active and quiescent volcanoes.
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