EVIDENCE OF INSTABILITY IN PREVIOUSLY-MAPPED LANDSLIDES AS MEASURED USING GPS, OPTICAL, AND SAR DATA BETWEEN 2007 AND 2017: A CASE STUDY IN THE PORTUGUESE BEND LANDSLIDE COMPLEX, CALIFORNIA

Evidence of Instability in Previously-Mapped Landslides as Measured Using GPS, Optical, and SAR Data between 2007 and 2017: A Case Study in the Portuguese Bend Landslide Complex, California

Velocity dictates the destructive potential of a landslide.A combination of synthetic aperture radar (SAR), optical, and GPS data were used to maximize spatial and temporal coverage to monitor continuously-moving portions of the Portuguese Bend landslide complex on the Palos Verdes Peninsula in Southern California.Forty SAR images from the COSMO-Sk

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