Shaul Hurwitz¹, Richard Blaine McCleskey², David A Roth², Deborah Bergfeld¹, Sara Peek¹, David Susong³, Erin B White⁴, Jefferson D G Hungerford⁵, Lauren Harrison⁶, Behnaz Hosseini⁶, Richard Gregory Vaughan⁷, Andrew G Hunt⁸ and James B Paces⁹, (1)USGS Volcano Science Center, Menlo Park, CA, United States, (2)U.S. Geological Survey, Water Mission Area, Boulder, CO, United States, (3)USGS Utah Water Science Center, SLC, UT, United States, (4)Yellowstone National Park, Geology Program, Mammoth Hot Springs, WY, United States, (5)National Park Service, Yellowstone Center for Resources, Yellowstone National Park, WY, United States, (6)National Park Service, Yellowstone National Park, WY, United States, (7)US Geological Survey, Flagstaff, AZ, United States, (8)U.S. Geological Survey, Denver Federal Center, Denver, CO, United States, (9)USGS, Geosciences and Environmental Change Science Center, Denver, CO, United States