1. Wyoming Center for Environmental Hydrology and Geophysics and Department of Ecosystem Science and ManagementUniversity of Wyoming 1000 E. University Ave., Dep. 3354 Laramie Wyoming USA 82072
2. Wyoming Center for Environmental Hydrology and Geophysics and Department of Geology and GeophysicsUniversity of Wyoming 1000 E. University Ave., Dep. 3006 Laramie Wyoming USA 82072
3. Department of GeosciencesVirginia Tech 926 West Campus Drive Blacksburg VA USA 24061