[1] Birhanu, Z.B, Mkhandi, S.K. and Mtalo F.W. (2008) Real Time Flow Forecasting For Ribb and Gumara Watersheds in the Blue Nile Basin North Western Ethiopia. 1-17.
[2] Kieran, K.M. and O’Connor, P.E. (2001) Discussion of Principles and Function of GFFMS Model as Operational Tool. Journal of Hydrology, 133, 21-37.
[3] Steenhuis, T.S., Collick, A.S., Easton, Z.M., Leggesse, E.S., Bayabil, H.K., White, E.D., Awulachew, S.B., Adgo, E. and Ahmed, A.A. (2009) Predicting Discharge and Sediment for the Abay (Blue Nile) with a Simple Model. Hydrological Processes, 23, 3728-3737.
https://doi.org/10.1002/hyp.7513
[4] Tesemma, Z.K., Mohamed, Y.A. and Steenhuis, T.S. (2010) Trends in Rainfall and Runoff in the Blue Nile Basin: 1964-2003. Hydrological Processes, 24, 3747-3758.
https://doi.org/10.1002/hyp.7893
[5] Tilahun, S., Guzman, C., Zegeye, A., Engda, T., Collick, A., Rimmer, A. and Steenhuis, T. (2013) An Efficient Semi-Distributed Hill Slope Erosion Model for the Sub-Humid Ethiopian Highlands. Hydrology and Earth System Sciences, 17, 1051-1063.
https://doi.org/10.5194/hess-17-1051-2013
[6] Moges, M.A., Schmitter, P., Tilahun, S.A., Langan, S., Dagnew, D.C., Akale, A.T. and Steenhuis, T.S. (2017) Suitability of Watershed Models to Predict Distributed Hydrologic Response in the Awramba Watershed in Lake Tana Basin. Land Degradation & Development, 28, 1386-1397.
https://doi.org/10.1002/ldr.2608
[7] Bergström, S. and Singh, V. (1995) The HBV Model. In: Singh, V.P., Ed., Computer Models of Watershed Hydrology, Water Resources Publications, Highlands Ranch, 443-476.
[8] Wale, A., Rientjes, T.H.M., Gieske, A.S.M. and Getachew, H.A. (2009) Ungauged Catchment Contributions to Lake Tana Water Balance. Hydrological Processes, 23, 3682-3693.
[9] Arnold, J.G., Srinivasan, R., Muttiah, R.S. and Williams, J.R. (1998) Large Area Hydrologic Modeling and Assessment Part I: Model Development. Journal of the American Water Resources Association, 34, 73-89.
[10] Setegn, S.G., Srinivasan, R., Melesse, A.M. and Dargahi, B. (2010) SWAT Model Application and Prediction Uncertainty Analysis in the Lake Tana Basin, Ethiopia. Hydrological Processes, 24, 357-367.
[11] Kebede, S., Travi, Y., Alemayehu, T. and Marc, V. (2006) Water Balance of Lake Tana and Its Sensitivity to Fluctuations in Rainfall, Blue Nile Basin, Ethiopia. Journal of Hydrology, 316, 233-247.
https://doi.org/10.1016/j.jhydrol.2005.05.011
[12] Dile, Y.T., Berndtsson, R. and Setegn, S.G. (2013) Hydrological Response to Climate Change for Gilgel Abay River, in the Lake Tana Basin-Upper Blue Nile Basin of Ethiopia. PloS One, 8, e79296.
https://doi.org/10.1371/journal.pone.0079296
[13] Dile, Y.T., Karlberg, L., Daggupati, P., Srinivasan, R., Wiberg, D. and Rockström, J. (2016) Assessing the Implications of Water Harvesting Intensification on Upstream-Downstream Ecosystem Services: A Case Study in the Lake Tana Basin. Science of the Total Environment, 542, 22-35.
https://doi.org/10.1016/j.scitotenv.2015.10.065
[14] Enku, T. and Melesse, A.M. (2014) A Simple Temperature Method for the Estimation of Evapotranspiration. Hydrological Processes, 28, .2945-2960.
[15] Nash, J.E. and Foley, J.J. (1982) Linear Models of Rainfall-Runoff Systems. In: Singh, V.P., Ed., Rainfall-Runoff Relationship, Proceedings of the International Symposium on Rainfall-Runoff Modelling, Water Resources Publications, Littleton, 51-66.
[16] Nash, J.E. and Barsi, B.I. (1983) LPM Hybrid Model for Flow Forecasting on Large Watersheds. Journal of Hydrology, 65, 125-137.
https://doi.org/10.1016/0022-1694(83)90213-5
[17] Connor, K.M. (2000) A Discrete Non-Parametric Models for Hydrology. Journal of Hydrology, 133, 1-15.
[18] Ashan, M.N., O’Connor, B.M. and Kieran, M.L. (1994) A Simple Non-Linear Rainfall-Runoff Model with a Variable Gain Factor. Journal of Hydrology, 155, 151-183.
https://doi.org/10.1016/0022-1694(94)90163-5
[19] Shamseldin, A.Y., O’Connor, K.M. and Liang, G.C. (1997) Methods for Combining the Outputs of Different Rainfall-Runoff Models. Journal of Hydrology, 197, 203-229.
https://doi.org/10.1016/S0022-1694(96)03259-3
[20] Connell, P.E., Nash, J.E. and Farrell, J.P. (1970) River Flow forecasting through Conceptual Models Part 2, The Brosna Watershed at Ferbane. Journal of Hydrology, 10, 317-329.
https://doi.org/10.1016/0022-1694(70)90221-0
[21] Nash, J.E. and Sutcliffe, J.V. (1969) River Flow Forecasting through Conceptual Models Part 1: A Discussion of Principles. Journal of Hydrology, 10, 282-290.
https://doi.org/10.1016/0022-1694(70)90255-6
[22] Wang, Y.T. (1991) A Model Optimization Technique for SMAR Conceptual Model. 47-82.
[23] Rosenbrock, H.H. (1960) An Automatic Method for Finding the Greatest or Least Value of a Function. The Computer Journal, 7, 175-184.
https://doi.org/10.1093/comjnl/3.3.175
[24] Nelden, J.A. and Mead, R.N. (1965) A Simple Search Method for SMAR Parameters Optimization. The Computer Journal, 7, 308-313.
[25] Kachroo, R.K., Sea, C.H., Warsi, M.S., Jemenez, H. and Saxena, R.P. (1992) River Flow Forecasting. Part 3. Applications of Linear Techniques in Modelling Rainfall-Runoff Transformations. Journal of Hydrology, 133, 41-97.
https://doi.org/10.1016/0022-1694(92)90148-O
[26] Shamseldin, A.Y. and O’Connor, K.M. (2001) A Non-Linear Neural Network Technique for Updating River Flow Forecasts. Hydrology and Earth System Sciences, 5, 577-598.
[27] Nash, J.E. and Sutcliffe, J.V. (1957) Nash-Sutcliffe Model Efficiency Criteria. Journal of Hydrology, 1-21.