1. Department of Geology and Geophysics University of Wyoming Laramie WY USA
2. Wyoming Center for Environmental Hydrology and Geophysics University of Wyoming Laramie WY USA
3. CSIRO Land and Water, PMB 2 Glen Osmond South Australia Australia
4. Jackson School of Geosciences University of Texas at Austin Austin TX USA
5. Earth, Planetary, and Space Sciences University of California Los Angeles Los Angeles CA USA
6. Department of Earth Sciences Dickinson College Carlisle PA USA
7. Idaho National Laboratory Idaho Falls ID USA