Surface Water Potential Assessment by Using HEC-HMS (Case Study Dabus Sub Basin, Abay/Nile Basin, Ethiopia)
International Journal of Energy and Environmental Science
Volume 5, Issue 6, November 2020, Pages: 101-110
Received: Aug. 30, 2020;
Accepted: Oct. 6, 2020;
Published: Nov. 24, 2020
Views 113 Downloads 55
Jemal Ibrahim Mohammed, Hydraulic and Water Resources Engineering, College of Engineering and Technology, Wollega University, Nekemte, Ethiopia
Follow on us
The surface water resources potential assessment requires detailed insights into hydrological processes. This study mainly focused on the assessment of surface water resources potential in Dabus sub-basin of Ethiopia. HEC-HMS model was used to simulate the flow of the sub-basin through calibration and validation. The performance of the model was assessed via calibration at gauging station using Relative Volume Error (D), coefficient of determination (R2) and Nash-Sutcliffe Efficiency (NSE) performance coefficients. Then the model was validated using the parameters optimized during model calibration. The potential of surface water resources assessed at different watershed created to see at local level and finally at outlet point to Main River for sub-basin. The HEC-HMS model calibrated and validated at three gauging station in the sub basin which shows a good performance at Dabus near Asosa which resulted D=0.0066, R2=0.91 and NSE=0.89 during calibration and D=4.9285, R2=0.84 and NSE=0.82 during validation. The parameters optimized at Dabus were used for flow simulation to assess surface water resources potential on monthly and annual basis. The flow components were also separated at small catchment considered for the sub-basin during catchment delineation. The result shows that high percentage of flow occupied by baseflow for the sub basin. So the sub basin has high surface water potential which should be allocated fairly and accurately for water resources projects for effective utilization of the country water resources.
Dabus Sub-basin, HEC-HMS, Surface Water Resources Potential
To cite this article
Jemal Ibrahim Mohammed,
Surface Water Potential Assessment by Using HEC-HMS (Case Study Dabus Sub Basin, Abay/Nile Basin, Ethiopia), International Journal of Energy and Environmental Science.
Vol. 5, No. 6,
2020, pp. 101-110.
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abeyou Wale. (2008). Hydrological balance of lake tana upper blue nile, Ethiopia. Internation Institution for Geo-informatics and Earth observation.
William A. Scharffenberg and Matthew J. Fleming. (2010). Hydrologic Modelling System. In U. A. Engineer. Washington DC, 20134-1000: US Army Corps of Engineer.
Awulachew, A. D. (2009). Characterization and Atlas of the Blue Nile Basin. International Water Management Institute.
Engineer, U. A. (2007). HEC-ResSim-Reservoir System Simulation. In U. A. Engineer, HEC-ResSim-Reservoir System Simulation. US Army corps of Engineer, Institute of water Resources, Hydrological Engineering Center.
Engineer, U. A. (2010). Hydrologic Modeling System HEC-HMS. In US Army corps of Engineer. US Army corps of Engineer, Institute of water resources HEC.
Engineer, U. S. (2000). Hydrologic Modelling System HEC HMS Technical Reference manual. United State Arms Corps of Engineer Institute of water resources.
Motovilov Y. G., G. L. (1999). Regional model of hydrological cycle. Application to the NOPEX region. Department of Geophysics, University of Oslo.
MoWR, F.-E. (2002). DABUS MEDIUM HYDROPOWER PROJECT. Addis Ababa.
O. Munyaneza1, A. M. (2014). Assessment of surface water resources availability using catchment modelling and the results of tracer studies in the mesoscale Migina Catchment, Rwanda. Hydrology and Earth Science System.
Piggott, A. S. (2005). Piggott, A. R., S. MoinA revised approach to the UKIH method for the calculation of baseflow,. Hydrological Sciences Journal, 911-920.
Simonovic, L. L. (2009). Streamflow Forecast and Reservoir Operation. Water Resour Manage (2010) 24: 83–104.
Singh, A. I. (2011). Streamflow Response to Climate Change. Water Resource Management (2012) 26: 1409–1424.
Sloto, R. a. (1996). HYSEP: A computer program for streamflow hydrograph separation and analysis: U.S. Geological Survey Water-Resources Investigations Report 96-4040, 46 p.
US Army corps of Engineer. (2010). Hydrologic Modeling System HEC-HMS. In US Army corps of Engineer. US Army corps of Engineer, Institute of water resources HEC.
US Army corps of Engineer, H. E. (2010, Version 5). In HEC-GeoHMS, Geospatial Hydrologic Modelling Extension. US Army Corps of Engineers.
World Meteorological Organization, W. (2012). TECHNICAL Material For Water Resources Assessment. World Meteorological Organization.