Adam S Ward, Oregon State University, Department of Biological and Ecological Engineering, Corvallis, OR, United States, John Steven Selker, Oregon State University, Biological and Ecological Engineering, Corvallis, United States, Gordon E. Grant, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, Scott Tyler, University of Nevada, Reno, Department of Geological Sciences and Engineering, Reno, NV, United States, Jeffrey McDonnell, University of Saskatchewan, School of Environment and Sustainability, Global Institute for Water Security, Saskatoon, SK, Canada, David W. Hyndman, Michigan State University, East Lansing, United States, Marc FP Bierkens, Deltares, Delft, Netherlands, David J Gochis, National Center for Atmospheric Research, Boulder, CO, United States, William E Dietrich, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, Jerad Bales, Consortium of Universities for the Advancement of Hydrologic Science, Inc., Washington, DC, United States, Heather E Golden, US Environmental Protection Agency, Office of Research & Development, Cincinnati, United States, Jay Christensen, US EPA, ORD, NERL, ESD, Las Vegas, NV, United States, Hilary K McMillan, San Diego State University, Department of Geography, San Diego, CA, United States, Margaret Zimmer, University of Wisconsin Madison, Department of Soil and Environmental Sciences, Madison, United States, Kristin L. Jaeger, U. S. Geological Survey, Tacoma, United States, Admin Husic, PhD, University of Kansas, Department of Civil, Environmental, and Architectural Engineering, Lawrence, United States, Erin Cedar Seybold, University of Kansas, Kansas Geological Survey, Lawrence, United States, C. Nathan Jones, University of Alabama, Biological Sciences, Tuscaloosa, Alabama, United States and Powell Center Working Group on Headwater Systems & Science