[1] Addis Ababa Univ, Africa Ctr Excellence Water Management, Hydrol & Water Resources Management, Addis Ababa, Ethiopia
[2] Debre Markos Univ, Dept Nat Resource Management, Debre Markos, Ethiopia
[3] Addis Ababa Univ, Ethiopian Inst Water Resources, Water & Land Resource Ctr, Addis Ababa, Ethiopia
[4] Debre Markos Univ, Dept Hydraul & Water Resources Engn, Debre Markos, Ethiopia
[5] IHE Delft Inst Water Educ, Dept Land & Water Management, NL-2611 AX Delft, Netherlands