TopCAT and PySESA: Open-source software tools for point cloud decimation, roughness analyses, and quantitative description of terrestrial surfaces

James Hensleigh1, Daniel Buscombe2, Joseph M Wheaton1, James Brasington3, Chris W Welcker4 and Kelvin Anderson4, (1)Utah State University, Logan, UT, United States, (2)USGS Grand Canyon Monitoring and Research Center, Flagstaff, AZ, United States, (3)Queen Mary, University of London, London, United Kingdom, (4)Idaho Power Company, Boise, ID, United States