**About the Editors**

### **Anne-Marie Matherne**

Anne-Marie Matherne, Ph.D., is a hydrologist with the U.S. Geological Survey. Her research interests include geomorphology and sediment transport and groundwater–surface water interactions. She has worked on various research projects, including landscape erosion on Navajo Nation and in the Four Corners area of the United States, effects of municipal pumping on stream flow, and post-wildfire debris flow hazard assessments. She has worked internationally in Honduras, El Salvador, and Ethiopia. She is currently Chief of the Environmental Geosciences Unit of the USGS New Mexico Water Science Center and Project Manager of the Transboundary Aquifer Assessment Program. Dr. Matherne holds a PhD in Geotechnical Engineering from the University of Illinois, Chicago and is a registered professional geologist.

#### **Sharon B. Megdal**

Sharon B. Megdal, Ph.D., is Director of The University of Arizona Water Resources Research Center (WRRC). Her other primary titles include Professor and Specialist in the Department of Environmental Science, C.W. & Modene Neely Endowed Professor, and Distinguished Outreach Professor. She aims to bridge the academic, practitioner, and civil society communities through water policy and management research, education, and engagement programs. The geographic scope of Dr. Megdal's work ranges from local to international. Her applied research projects include analysis of water management, policy, and governance in water-scarce regions, groundwater recharge, and transboundary aquifer assessment. She is the lead editor of the book *Shared Borders, Shared Waters: Israeli-Palestinian and Colorado River Basin Water Challenges*, and she has guest edited several Special Issues of the journal *Water*. Dr. Megdal teaches the graduate course "Water Policy in Arizona and Semi-arid Regions". In 2020, she was awarded the Warren A. Hall Medal for lifetime achievement in water resources research and education by the Universities Council on Water Resources. Sharon Megdal holds a Ph.D. degree in Economics from Princeton University.
