1. Department of Geological Sciences; Michigan State University; East Lansing Michigan USA
2. Department of Geology and Geophysics; University of Wyoming; Laramie Wyoming USA
3. Science and Engineering Faculty; Queensland University of Technology; Brisbane Queensland Australia
4. Kansas Geological Survey; University of Kansas; Lawrence Kansas USA
5. Department of Statistics and Probability; Michigan State University; East Lansing Michigan USA
6. Hydrologic Science and Engineering; Colorado School of Mines; Golden Colorado USA