1. School of Earth and Space Exploration; Arizona State University; Tempe AZ 85287 USA
2. Centre for Hydrology; University of Saskatchewan; Saskatoon SK S7N 5C8 Canada
3. Global Institute of Water Security; University of Saskatchewan; Saskatoon SK S7N 3H5 Canada
4. School of Sustainable Engineering and the Built Environment; Arizona State University; Tempe AZ 85287 USA