1. Department of Environmental Sciences University of Virginia Charlottesville Virginia USA
2. Geosciences and Geological and Petroleum Engineering Missouri University of Science and Technology Rolla Missouri USA
3. Department of Forestry and Environmental Resources North Carolina State University Raleigh North Carolina USA
4. Coweeta Hydrologic Laboratory Southern Research Station, USDA Forest Service Otto North Carolina USA
5. Department of Engineering Systems and Environment University of Virginia Charlottesville Virginia USA