UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands

Civil Engineering Department, Addis Ababa Institute of Technology, Addis Ababa University, P.O. Box 380, Addis Ababa, Ethiopia

UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands

Delft University of Technology, Faculty of Civil Engineering and Applied Geosciences, Water Resources Section, Stevinweg 1, P.O. Box 5048, 2600 GB Delft, The Netherlands

Institute of Environment and Development Studies, Addis Ababa University, P.O. Box 2176, Addis Ababa, Ethiopia

UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands

Delft University of Technology, Faculty of Civil Engineering and Applied Geosciences, Water Resources Section, Stevinweg 1, P.O. Box 5048, 2600 GB Delft, The Netherlands

UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands

Delft University of Technology, Faculty of Civil Engineering and Applied Geosciences, Water Resources Section, Stevinweg 1, P.O. Box 5048, 2600 GB Delft, The Netherlands

UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands

Delft University of Technology, Faculty of Civil Engineering and Applied Geosciences, Water Resources Section, Stevinweg 1, P.O. Box 5048, 2600 GB Delft, The Netherlands

UNESCO-IHE Institute for Water Education, P.O. Box 3015, 2601 DA Delft, The Netherlands

Delft University of Technology, Faculty of Civil Engineering and Applied Geosciences, Water Resources Section, Stevinweg 1, P.O. Box 5048, 2600 GB Delft, The Netherlands