1. Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA
2. Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO, USA
3. Department of Geography and Earth Sciences, University of North Carolina at Charlotte, Charlotte, NC, USA
4. Department of Geology, Kent State University, Kent, OH, USA
5. Lyles School of Civil Engineering, Purdue University, West Lafayette, IN, USA