Classifying Historic Images to Quantify Spatial and Temporal Changes in Tree Mortality at Horseshoe Lake (Mammoth Mountain, California)

Madeleine O'Brien, USGS Geological Survey, Menlo Park, CA, United States, Laura E Clor, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States, Richard Gregory Vaughan, USGS Astrogeology Science Center, Flagstaff, AZ, United States and Shaul Hurwitz, U.S. Geological Survey Volcano Science Center, Moffett Field, United States