1. Earth and Environmental Sciences Department, Michigan State University, 288 Farm Lane, Rm. 206, East Lansing 48824-1312, Michigan, United States
2. Biological Systems Engineering Department, University of Wisconsin Madison, 460 Henry Mall, Madison 53705, Wisconsin, United States
3. Civil and Environmental Engineering Department, Michigan State University, 1449 Engineering Research Complex—A127, East Lansing 48824-1226, Michigan, United States
4. Earth and Atmospheric Sciences Department, University of Nebraska-Lincoln, 330 Bessey Hall, Lincoln 68588-0340, Nebraska, United States