1. Water and Land Resource Centre, Addis Ababa University, Addis Ababa P.O. Box 3880, Ethiopia
2. College of Development Studies, Addis Ababa University, Addis Ababa P.O. Box 3880, Ethiopia
3. Ethiopian Water Resources Institute, Addis Ababa University, Addis Ababa P.O. Box 3880, Ethiopia
4. Water Security and Sustainable Development Hub, School of Engineering, Newcastle University, Newcastle NE1 7RU, UK