151 citations as recorded by crossref.

1. Improving irrigation efficiency will be insufficient to meet future water demand in the Nile Basin S. Multsch et al. 10.1016/j.ejrh.2017.04.007
2. Impact of climate change on surface water availability and crop water demand for the sub-watershed of Abbay Basin, Ethiopia A. Bekele et al. 10.1007/s40899-019-00339-w
3. Assessment of Climate Change Impacts on the Hydroclimatic Response in Burundi Based on CMIP6 ESMs J. Kim et al. 10.3390/su132112037
4. Spatial and temporal uncertainty in climatic impacts on watershed systems O. Tsvetkova & T. Randhir 10.1016/j.scitotenv.2019.06.141
5. The role of Renaissance dam in reducing hydrological extremes in the Upper Blue Nile Basin: Current and future climate scenarios R. Lazin et al. 10.1016/j.jhydrol.2022.128753
6. Assessment of climate change impact on hydrological extremes in two source regions of the Nile River Basin M. Taye et al. 10.5194/hess-15-209-2011
7. Assessing the Impact of Climate Change on the Waterlogging Risk in Coastal Cities: A Case Study of Guangzhou, South China H. Zhang et al. 10.1175/JHM-D-16-0157.1
8. Evaluating future stress due to combined effect of climate change and rapid urbanization for Pasig-Marikina River, Manila P. Kumar et al. 10.1016/j.gsd.2018.01.004
9. Climate Change Impacts, Vulnerabilities and Adaption Measures for Egypt’s Nile Delta K. Abutaleb et al. 10.1007/s41748-018-0047-9
10. Development and application of a drought risk index for food crop yield in Eastern Sahel N. Elagib 10.1016/j.ecolind.2014.02.033
11. Spatiotemporal climate and vegetation greenness changes and their nexus for Dhidhessa River Basin, Ethiopia G. Wedajo et al. 10.1186/s40068-019-0159-8
12. Upper Blue Nile basin water budget from a multi-model perspective H. Jung et al. 10.1016/j.jhydrol.2017.10.040
13. Numerical quantification of current status quo and future prediction of water quality in eight Asian megacities: challenges and opportunities for sustainable water management P. Kumar 10.1007/s10661-019-7497-x
14. Review of climate change impacts on predicted river streamflow in tropical rivers M. Jahandideh-Tehrani et al. 10.1007/s10661-019-7841-1
15. Mid-21st century projections of hydroclimate in Western Himalayas and Satluj River basin S. Tiwari et al. 10.1016/j.gloplacha.2017.10.013
16. Spatial distribution of δ2H and δ18O values in the hydrologic cycle of the Nile Basin J. Langman 10.1007/s40333-014-0078-5
17. Projected changes in extreme precipitation indices from CORDEX simulations over Ethiopia, East Africa G. Tegegne et al. 10.1016/j.atmosres.2020.105156
18. Climate change enhances interannual variability of the Nile river flow M. Siam & E. Eltahir 10.1038/nclimate3273
19. Flood inundation mapping under climate change scenarios in the Boyo watershed of Southern Ethiopia M. Edamo et al. 10.2166/wcc.2022.193
20. Changes in water availability in the Upper Blue Nile basin under the representative concentration pathways scenario A. Haile et al. 10.1080/02626667.2017.1365149
21. Identifying sources of temporal variability in hydrological extremes of the upper Blue Nile basin M. Taye & P. Willems 10.1016/j.jhydrol.2013.06.053
22. THE ECONOMY-WIDE IMPACTS OF CLIMATE CHANGE AND IRRIGATION DEVELOPMENT IN THE NILE BASIN: A COMPUTABLE GENERAL EQUILIBRIUM APPROACH T. KAHSAY et al. 10.1142/S201000781750004X
23. Understanding the association between climate variability and the Nile's water level fluctuations and water storage changes during 1992–2016 M. Khaki et al. 10.1016/j.scitotenv.2018.07.212
24. Scanning climate change impacts on water resources of the largest African river basins A. Shamseddin & T. Chaibi 10.1080/15715124.2019.1576699
25. Spatial and temporal variations in hydro-climatic variables and runoff in response to climate change in the Luanhe River basin, China W. Wang et al. 10.1007/s00477-014-1003-3
26. Estimating the flood frequency distribution at seasonal and annual time scales E. Baratti et al. 10.5194/hess-16-4651-2012
27. Evaluation of climate anomalies impacts on the Upper Blue Nile Basin in Ethiopia using a distributed and a lumped hydrologic model M. Elsanabary & T. Gan 10.1016/j.jhydrol.2015.09.052
28. Impact of climate change on the streamflow of the Arjo-Didessa catchment under RCP scenarios W. Bekele et al. 10.2166/wcc.2021.307
29. Human and Climate Effects on the Hamoun Wetlands S. Maleki et al. 10.1175/WCAS-D-18-0070.1
30. Envisaging the actual evapotranspiration and elucidating its effects under climate change scenarios on agrarian lands of bilate river basin in Ethiopia A. Nannawo et al. 10.1016/j.heliyon.2022.e10368
31. The question of Sudan: a hydro-economic optimization model for the Sudanese Blue Nile S. Satti et al. 10.5194/hess-19-2275-2015
32. Modeling impacts of projected land use and climate changes on the water balance in the Baro basin, Ethiopia A. Mengistu et al. 10.1016/j.heliyon.2023.e13965
33. Current Assessment and Future Outlook for Water Resources Considering Climate Change and a Population Burst: A Case Study of Ciliwung River, Jakarta City, Indonesia P. Kumar et al. 10.3390/w9060410
34. Evaluation of A Regional Climate Model for the Eastern Nile Basin: Terrestrial and Atmospheric Water Balance M. Abdelwares et al. 10.3390/atmos10120736
35. Evaluation of SDSM developed by annual and monthly sub-models for downscaling temperature and precipitation in the Jhelum basin, Pakistan and India R. Mahmood & M. Babel 10.1007/s00704-012-0765-0
36. Modelling hydrological processes under climate change scenarios in the Jemma sub-basin of upper Blue Nile Basin, Ethiopia G. Worku et al. 10.1016/j.crm.2021.100272
37. Egypt’s economic vulnerability to climate change J. Smith et al. 10.3354/cr01257
38. Nasser Lake's Effect on Regional Climate Z. Xiong et al. 10.2139/ssrn.4020179
39. Evaluation of CFSR climate data for hydrologic prediction in data‐scarce watersheds: an application in the Blue Nile River Basin Y. Dile & R. Srinivasan 10.1111/jawr.12182
40. Assessment of Future Climate Change Impact on Water Quality of Chungju Lake, South Korea, Using WASP Coupled with SWAT J. Park et al. 10.1111/jawr.12085
41. APPLICATION OF BIAS-CORRECTION AND DOWNSCALING METHOD TO KALU GANGA BASIN IN SRI LANKA C. NYUNT et al. 10.2208/jscejhe.68.I_115
42. A comparative study of available water in the major river basins of the world V. Lakshmi et al. 10.1016/j.jhydrol.2018.10.038
43. Comparison of Trend Preserving Statistical Downscaling Algorithms Toward an Improved Precipitation Extremes Projection in the Headwaters of Blue Nile River in Ethiopia G. Tegegne & A. Melesse 10.1007/s40710-020-00474-z
44. Modeling the impacts of climate change on hydrological processes in the Baro–Akobo River basin, Ethiopia A. Mengistu et al. 10.1007/s11600-022-00956-8
45. Hydro-Meteorological Trends in the Upper Omo-Ghibe River Basin, Ethiopia . Jaweso et al. 10.3390/w11091951
46. Spatio-temporal variability and trends of precipitation and extreme rainfall events in Ethiopia in 1980–2010 S. Gummadi et al. 10.1007/s00704-017-2340-1
47. Observed and model simulated twenty-first century hydro-climatic change of Northern Ethiopia S. Tesfaye et al. 10.1016/j.ejrh.2019.100595
48. Climate change impacts on the water and groundwater resources of the Lake Tana Basin, Ethiopia T. Tigabu et al. 10.2166/wcc.2020.126
49. Late Quaternary changes in climate and land cover in the Northern Horn of Africa and adjacent areas S. Lanckriet et al. 10.1016/j.palaeo.2017.05.035
50. The effects of pre‐season high flows, climate, and the Three Gorges Dam on low flow at the Three Gorges Region, China Z. Su et al. 10.1002/hyp.13714
51. Watershed Hydrological Response to Combined Land Use/Land Cover and Climate Change in Highland Ethiopia: Finchaa Catchment W. Dibaba et al. 10.3390/w12061801
52. Hydrological model optimization using multi-gauge calibration (MGC) in a mountainous region S. Swalih & E. Kahya 10.2166/hydro.2020.034
53. The nature and impact of climate change in the Challenge Program on Water and Food (CPWF) basins M. Mulligan et al. 10.1080/02508060.2011.543408
54. Selecting the optimal method to calculate daily global reference potential evaporation from CFSR reanalysis data for application in a hydrological model study F. Sperna Weiland et al. 10.5194/hess-16-983-2012
55. Application of downscaled precipitation for hydrological climate-change impact assessment in the upper Ping River Basin of Thailand D. Sharma & M. Babel 10.1007/s00382-013-1788-7
56. Impacts of drought, food security policy and climate change on performance of irrigation schemes in Sub-saharan Africa: The case of Sudan S. Ahmed 10.1016/j.agwat.2020.106064
57. Evaluation of Past and Future Climate Trends under CMIP6 Scenarios for the UBNB (Abay), Ethiopia A. Alaminie et al. 10.3390/w13152110
58. Simulating impacts of climate change on river discharges in the Nile basin M. Booij et al. 10.1016/j.pce.2011.07.042
59. Advances in water resources research in the Upper Blue Nile basin and the way forward: A review Y. Dile et al. 10.1016/j.jhydrol.2018.03.042
60. Climate induced water security risks on agriculture in the Abbay river basin: A review D. Tibebe et al. 10.3389/frwa.2022.961948
61. Effect of Climate Change on Runoff Generation: Application to Rift Valley Lakes Basin of Ethiopia N. Wagesho et al. 10.1061/(ASCE)HE.1943-5584.0000647
62. Bias correction method for climate change impact assessments in the Philippines C. NYUNT et al. 10.2208/jscejhe.69.I_19
63. Climate change impacts on water resources in the Upper Blue Nile (Abay) River Basin, Ethiopia D. Mengistu et al. 10.1016/j.jhydrol.2020.125614
64. Future climate change and impacts on water resources in the Upper Blue Nile basin G. Takele et al. 10.2166/wcc.2021.235
65. An In-Depth Analysis of Physical Blue and Green Water Scarcity in Agriculture in Terms of Causes and Events and Perceived Amenability to Economic Interpretation K. Zisopoulou & D. Panagoulia 10.3390/w13121693
66. Investigating hydro-climates of the Upper Blue Nile River Basin A. Alaminie & M. Jury 10.1080/02626667.2021.2011892
67. Enhancing the utility of daily GCM rainfall for crop yield prediction A. Ines et al. 10.1002/joc.2223
68. Spatio‐temporal characteristics of meteorological drought under changing climate in semi‐arid region of northern Ethiopia B. Yisehak et al. 10.1186/s40068-021-00226-4
69. Assessing the effect of sustainable land management on improving water security in the Blue Nile Highlands: a paired catchment approach B. Mersha et al. 10.1007/s10661-022-09837-5
70. Spatio-temporal prediction of climate and wildfire in Hugumbrda Grat-Kahsu forest, Tigray: priority for early warning H. Abrha et al. 10.1080/19475705.2023.2250517
71. Statistical bias correction of regional climate model simulations for climate change projection in the Jemma sub-basin, upper Blue Nile Basin of Ethiopia G. Worku et al. 10.1007/s00704-019-03053-x
72. Modelling climate change impact on the streamflow in the Upper Wabe Bridge watershed in Wabe Shebele River Basin, Ethiopia M. Gurara et al. 10.1080/15715124.2021.1935978
73. Hydrological Cycles over the Congo and Upper Blue Nile Basins: Evaluation of General Circulation Model Simulations and Reanalysis Products M. Siam et al. 10.1175/JCLI-D-12-00404.1
74. Understanding Reservoir Operating Rules in the Transboundary Nile River Basin Using Macroscale Hydrologic Modeling with Satellite Measurements H. Eldardiry & F. Hossain 10.1175/JHM-D-19-0058.1
75. Establishing and modeling the causality relationship of hydro-climatic and land cover change variables with water quality over Lake Tana, Ethiopia N. Teshome Abegaz et al. 10.1016/j.teadva.2024.200100
76. Water resources trends in Middle East and North Africa towards 2050 P. Droogers et al. 10.5194/hess-16-3101-2012
77. The future of the Nile: climate change, land use, infrastructure management, and treaty negotiations in a transboundary river basin J. Barnes 10.1002/wcc.449
78. Application of Statistical Bias correction method to the Yoshino River Basin C. NYUNT et al. 10.2208/jscejhe.70.I_193
79. Probabilistic correction of RCM precipitation in the Basque Country (Northern Spain) R. Monjo et al. 10.1007/s00704-013-1008-8
80. Impacts of climate change under CMIP5 RCP scenarios on the streamflow in the Dinder River and ecosystem habitats in Dinder National Park, Sudan A. Basheer et al. 10.5194/hess-20-1331-2016
81. The impacts of LULC and climate change scenarios on the hydrology and sediment yield of Rib watershed, Ethiopia L. Tsegaye & R. Bharti 10.1007/s10661-022-10391-3
82. Trends in rainfall and runoff in the Blue Nile Basin: 1964–2003 Z. Tesemma et al. 10.1002/hyp.7893
83. Influence of climate variability on representative QDF predictions of the upper Blue Nile basin M. Taye & P. Willems 10.1016/j.jhydrol.2011.10.019
84. Impacts of climate change on streamflow in the upper Yangtze River basin B. Su et al. 10.1007/s10584-016-1852-5
85. Large Rivers in the Anthropocene: Insights and tools for understanding climatic, land use, and reservoir influences H. Habersack et al. 10.1002/2013WR014731
86. The Transboundary Impacts of Trade Liberalization and Climate Change on the Nile Basin Economies and Water Resource Availability T. Kahsay et al. 10.1007/s11269-017-1847-7
87. Groundwater recharge evaluation due to climate change using WetSpass-M distributed hydrological model in Bilate river basin of Ethiopia A. Nannawo et al. 10.1016/j.gsd.2022.100860
88. Effect of land use–land cover and projected rainfall on soil erosion intensities of a tropical catchment in Sri Lanka S. de Silva et al. 10.1007/s13762-022-04606-w
89. Optimizing climate model selection for hydrological modeling: A case study in the Maumee River basin using the SWAT S. Yuan et al. 10.1016/j.jhydrol.2020.125064
90. Global warming: causes and impacts on agroecosystems productivity and food security with emphasis on cassava comparative advantage in the tropics/subtropics M. El-Sharkawy 10.1007/s11099-014-0028-7
91. Implications of climate change on hydrological extremes in the Blue Nile basin: A review M. Taye et al. 10.1016/j.ejrh.2015.07.001
92. Impact of Climate Change on Hydrology and Hydrologic Extremes of Upper Blue Nile River Basin T. Tariku et al. 10.1061/(ASCE)WR.1943-5452.0001321
93. Quantifying and evaluating the impacts of cooperation in transboundary river basins on the Water-Energy-Food nexus: The Blue Nile Basin M. Basheer et al. 10.1016/j.scitotenv.2018.02.249
94. Climate change impacts on water security elements of Kafr El-Sheikh governorate, Egypt A. Alkhawaga et al. 10.1016/j.agwat.2021.107217
95. Runoff sensitivity to climate change in the Nile River Basin E. Hasan et al. 10.1016/j.jhydrol.2018.04.004
96. Effect of climate change on water availability in Bilate catchment, Southern Ethiopia M. Edamo et al. 10.1016/j.watcyc.2022.06.001
97. Inter-model comparison of hydrological impacts of climate change on the Upper Blue Nile basin using ensemble of hydrological models and global climate models A. Teklesadik et al. 10.1007/s10584-017-1913-4
98. Optimizing Regional Climate Model Output for Hydro-Climate Applications in the Eastern Nile Basin M. Osman et al. 10.1007/s41748-021-00222-9
99. Assessment of potential impact of climate change on streamflow: a case study of the Brahmani River basin, India K. Vandana et al. 10.2166/wcc.2018.129
100. Land restoration in food security programmes: synergies with climate change mitigation D. Woolf et al. 10.1080/14693062.2018.1427537
101. Assessing the effect of climate change on mean annual runoff in the Songhua River basin, China D. Meng & X. Mo 10.1002/hyp.8180
102. Impacts of Climate and Land Use Change on Hydrological Response in Gumara Watershed, Ethiopia A. Teklay et al. 10.1016/j.ecohyd.2020.12.001
103. Sensitivity of SWAT simulated streamflow to climatic changes within the Eastern Nile River basin D. Mengistu & A. Sorteberg 10.5194/hess-16-391-2012
104. Evaluating water availability under changing climate scenarios in the Woybo catchment, Ethiopia T. Ukumo et al. 10.2166/wcc.2022.343
105. Effects of climate change on water resources in the upper Blue Nile Basin of Ethiopia V. Roth et al. 10.1016/j.heliyon.2018.e00771
106. Modeling future flood frequency under CMIP5 Scenarios in Hare watershed, Southern Rift Valley of Ethiopia B. Menna & T. Ayalew 10.1007/s12517-021-08479-0
107. Dynamical bias correction procedure to improve global gridded daily streamflow data for local application in the Upper Blue Nile basin H. Lakew & S. Moges 10.2478/johh-2020-0040
108. Comparative study of a physically based distributed hydrological model versus a conceptual hydrological model for assessment of climate change response in the Upper Nile, Baro-Akobo basin: a case study of the Sore watershed, Ethiopia A. Kebede et al. 10.1080/15715124.2014.917315
109. Assessment of Climate Change Impacts for Balancing Transboundary Water Resources Development in the Blue Nile Basin M. Tedla et al. 10.3390/su142215438
110. Grand Ethiopian Renaissance Dam and hydrologic hegemony over Abbay Basin T. Andualem et al. 10.1007/s40899-021-00568-y
111. The dual impact of climate change on irrigation water demand and reservoir performance: a case study of Koga irrigation scheme, Ethiopia Y. Kumilachew & S. Hatiye 10.1007/s40899-022-00617-0
112. Future hydrology and climate in the River Nile basin: a review G. Di Baldassarre et al. 10.1080/02626667.2011.557378
113. Catchment response to climate and land use changes in the Upper Blue Nile sub-basins, Ethiopia T. Woldesenbet et al. 10.1016/j.scitotenv.2018.06.198
114. Uncertainty in the signal: modelling Egypt's water futures J. Barnes 10.1111/1467-9655.12393
115. Large‐Scale Controls of the Surface Water Balance Over Land: Insights From a Systematic Review and Meta‐Analysis R. Padrón et al. 10.1002/2017WR021215
116. Recharge variability and sensitivity to climate: The example of Gidabo River Basin, Main Ethiopian Rift A. Mechal et al. 10.1016/j.ejrh.2015.09.001
117. Regional climate change impact on extreme precipitation and temperature of the Nile river basin T. Tariku & T. Gan 10.1007/s00382-018-4092-8
118. Considerations in managing the fill rate of the Grand Ethiopian Renaissance Dam Reservoir using a system dynamics approach B. Keith et al. 10.1177/1548512916680780
119. An Overview of the Implication of Climate Change on Fish Farming in Egypt A. Mehrim & M. Refaey 10.3390/su15021679
120. Twentieth and Twenty-First Century Water Storage Changes in the Nile River Basin from GRACE/GRACE-FO and Modeling E. Hasan et al. 10.3390/rs13050953
121. High-Resolution Climate Projections for a Densely Populated Mediterranean Region M. Nashwan et al. 10.3390/su12093684
122. Uncertainty of hydrological modelling in climate change impact studies in a Canadian, snow-dominated river basin A. Poulin et al. 10.1016/j.jhydrol.2011.08.057
123. Regional Climate Change in Southeast Mexico-Yucatan Peninsula, Central America and the Caribbean M. Andrade-Velázquez et al. 10.3390/app11188284
124. Role of the Indian Ocean sea surface temperature in shaping the natural variability in the flow of Nile River M. Siam et al. 10.1007/s00382-014-2132-6
125. Assessment of future flood inundations under climate and land use change scenarios in the Ciliwung River Basin, Jakarta B. Mishra et al. 10.1111/jfr3.12311
126. Sources of uncertainty in climate change impacts on river discharge and groundwater in a headwater catchment of the Upper Nile Basin, Uganda D. Kingston & R. Taylor 10.5194/hess-14-1297-2010
127. Impacts of climate change on savannah woodland biomass carbon density and water-use: a modelling study of the Sudanese gum belt region S. Alam & M. Starr 10.1007/s11027-012-9403-5
128. Climate change vulnerability and adaptation strategies in Egypt’s agricultural sector B. McCarl et al. 10.1007/s11027-013-9520-9
129. Applying a Multi-Model Ensemble Method for Long-Term Runoff Prediction under Climate Change Scenarios for the Yellow River Basin, China L. Zhang & X. Yang 10.3390/w10030301
130. Assessment of the Impacts of Proposed Water Resources Development Projects in Baro-Akobo-Sobat Basin on Nile Inflows at High Aswan Dam A. Abdelkader et al. 10.1016/j.ejrh.2023.101335
131. Effect of climate change on reservoir water balance and irrigation water demand: a case of Gidabo irrigation project, Rift Valley Basin, Ethiopia T. Mana et al. 10.1007/s10661-023-11484-3
132. A Hydrological Modeling Approach for Assessing the Impacts of Climate Change on Runoff Regimes in Slovakia P. Sleziak et al. 10.3390/w13233358
133. Flood inundation and risk mapping under climate change scenarios in the lower Bilate catchment, Ethiopia M. Edamo et al. 10.1007/s11069-023-06101-y
134. Investigating the effectiveness of bias correction and merging MSWEP with gauged rainfall for the hydrological simulation of the upper Blue Nile basin H. Lakew 10.1016/j.ejrh.2020.100741
135. Hydro-climatic trends in the Abay/Upper Blue Nile basin, Ethiopia S. Tekleab et al. 10.1016/j.pce.2013.04.017
136. Evaluation and Expected Changes of Summer Precipitation at Convection Permitting Scale with COSMO-CLM over Alpine Space M. Adinolfi et al. 10.3390/atmos12010054
137. A nesting model for bias correction of variability at multiple time scales in general circulation model precipitation simulations F. Johnson & A. Sharma 10.1029/2011WR010464
138. Does political uncertainty affect water resources development? The case of the Eastern Nile X. Wu et al. 10.1016/j.polsoc.2016.07.001
139. Are we using the right fuel to drive hydrological models? A climate impact study in the Upper Blue Nile S. Liersch et al. 10.5194/hess-22-2163-2018
140. Assessment of Future Floods in the Bagmati River Basin of Nepal Using Bias-Corrected Daily GCM Precipitation Data B. Kumar Mishra & S. Herath 10.1061/(ASCE)HE.1943-5584.0001090
141. Analyzing the future climate change of Upper Blue Nile River basin using statistical downscaling techniques D. Fenta Mekonnen & M. Disse 10.5194/hess-22-2391-2018
142. Modeling the impact of climate change on the hydrology of Andasa watershed N. Tarekegn et al. 10.1007/s40808-020-01063-7
143. Evaluation of Global Water Resources Reanalysis Runoff Products for Local Water Resources Applications: Case Study-Upper Blue Nile Basin of Ethiopia H. Lakew et al. 10.1007/s11269-019-2190-y
144. Assessing Future Precipitation Patterns, Extremes and Variability in Major Nile Basin Cities: An Ensemble Approach with CORDEX CORE Regional Climate Models G. Gamal et al. 10.3390/cli12010009
145. Climate change and impacts on the hydrology of the Congo Basin: The case of the northern sub-basins of the Oubangui and Sangha Rivers R. Tshimanga & D. Hughes 10.1016/j.pce.2012.08.002
146. Verification of Bias Corrected Simulations of Climate Models Using Entropy J. Lee & Y. Kim 10.9798/KOSHAM.2015.15.5.25
147. Changes in future climate indices using Statistical Downscaling Model in the upper Baro basin of Ethiopia M. Gebremedhin et al. 10.1007/s00704-017-2151-4
148. Simulating adaptation strategies to offset potential impacts of climate variability and change on maize yields in Embu County, Kenya S. Gummadi et al. 10.1371/journal.pone.0241147
149. Climate change projections in the Awash River Basin of Ethiopia using Global and Regional Climate Models M. Tadese et al. 10.1002/joc.6418
150. The Nile Basin: tapping the unmet agricultural potential of Nile waters S. Awulachew et al. 10.1080/02508060.2010.513091
151. Impact of climate change on hydrological responses of Gumara catchment, in the Lake Tana Basin - Upper Blue Nile Basin of Ethiopia M. Andargachew & A. Fantahun 10.5897/IJWREE2016.0658