Advertisement

Determination of Monthly Hydrological Erosion Severity and Runoff in Torogh Dam Watershed Basin Using SWAT and WEPP Models

  • A. Aghakhani Afshar
  • Y. Hassanzadeh
Research Paper

Abstract

Evaluation of runoff and sediment load is the main problem that affects the performance of dams due to the reduction in the storage capacity of their reservoirs and their effect on dam efficiency and operation schedule. Hydrologic models are increasingly used for simulation of spatially varied hydrologic processes with the availability of spatially distributed data to understand and manage natural and activities that affect watershed systems if the continuous field measurements are not available. Soil and water conservation and also quantification of soil loss in watershed basins are a significant issue. In this study, the Soil and Water Assessment Tool (SWAT) and the Water Erosion Prediction Project (WEPP) are applied to estimate runoff volume and sediment load for Torogh dam reservoir area that is located in Kashafrood Watershed Basin in northeastern Iran. Simulated and observed runoff and sediment load are compared with these models. In the calibration period, the Nash–Sutcliffe coefficient (NSE) values for the SWAT and WEPP were 0.698 and 0.854 for runoff, and 0.667 and 0.832 for sediment load, respectively. In the validation period, the NSE values for SWAT and WEPP were 0.678 and 0.824 for runoff, and 0.809 and 0.816 for sediment load, respectively. The results indicate that both models gave reasonable results in comparison with measured values. Simulation with WEPP model was better than SWAT in some cases and with reasonable confidence could be used for soil loss quantification in the watershed basin of Torogh dam.

Keywords

SWAT WEPP Sediment load Runoff Calibration–Validation 

References

  1. Afzali SF, Baqeri E, Amin S, Namdari Ghareghani E, Soltani E (2015) Comparison of WEPP, ANSWERS and MPSIAC for evaluating the runoff, soil erosion and sediment at Khosroshirin region Fars province Iran. Int J For Soil Eros (IJFSE) 5(3):76–85Google Scholar
  2. Akbari A, Sedaei L, Naderi M et al (2015) The application of the water erosion prediction project (WEPP) model for the estimation of runoff and sediment on a monthly time resolution. J Environ Earth Sci 24(7):5827–5837. doi: 10.1007/s12665-015-4600-7 CrossRefGoogle Scholar
  3. Arnold JG, Srinivasan R, Muttiah R, Williams J (1998) Large area hydrologic modeling and assessment part I: model development. J Am Water Resour Assoc 34:73–89CrossRefGoogle Scholar
  4. Ashagre B (2009) SWAT to identify watershed management option: (Anjeni watershed, Blue Nile Basin, Etiopia). Master thesis, Cornell University, New YorkGoogle Scholar
  5. Beven KJ (2000) Rainfall-runoff modelling: the primer. Wiley, New YorkGoogle Scholar
  6. Flanagan DC, Nearing MA (1995) USDA-water erosion prediction project: HillslopeProfile and watershed model documentation. NSERL Report No. 10. USDA-ARS National Soil Erosion Research Laboratory, West LafayetteGoogle Scholar
  7. Flanagan DC, Gilley JE, Franti TG (2007) Water erosion prediction (WEPP): development history, model capabilities and future enhancements. Trans Am Soc Agric Biol Eng 50:1603–1612. doi: 10.13031/2013.23968 Google Scholar
  8. McCuen RH, Snyder WM (1986) Hydrologic modeling: statistical methods and applications. Prentice Hall, Englewood CliffsGoogle Scholar
  9. Mohammad ME, Al-Ansari N, Knutsson S (2016) Annual runoff and sediment in Duhok reservoir watershed using SWAT and WEPP models. J Eng 8(7):410–422. doi: 10.4236/eng.2016.87038 CrossRefGoogle Scholar
  10. Morgan RPC (1995) Soil erosion and conservation. Longman, HarlowGoogle Scholar
  11. Nash JE, Sutcliffe JV (1970) River flow forecasting through conceptual models. Part I. A discussion of principles. J Hydrol 10(3):282–290CrossRefGoogle Scholar
  12. Neitsch SL, Arnold JG, Kiniry JR, Srinivasan R, Williams JR (2009) Soil and water assessment tool theoretical documentation version. Blackland Research Center-Texas SA TR, 406Google Scholar
  13. Olotu Y, Akanbi OP, Ahanmisi E, Adeniyi EA (2013) Simulation of runoff and sediment load for reservoir sedimentation of river ole dam using SWAT and WEPP model. Global J Sci Front Res 13(13):7–12Google Scholar
  14. Pandey A, Chowdary VM, Mal BC, Billib M (2008) Runoff and sediment load modeling from a small agricultural watershed in India using the WEPP model. J Hydrol 348(3–4):305–319CrossRefGoogle Scholar
  15. Shawul AA, Alamirew T, Dinka MO (2013) Calibration and validation of SWAT model and estimation of water balance components of Shaya mountainous watershed, Southeastern Etiopia. Hydrol Earth Syst Sci 10:13955–13978. doi: 10.5194/hessd-10-13955-2013 CrossRefGoogle Scholar
  16. Thomann RV (1982) Verification of water quality models. J Environ Eng Div 108(5):923–940Google Scholar
  17. Wang X, White M, Tuppad P, Lee T, Srinivasan R, Zhai T, Andrews D, Narasimhan B (2013) Simulating sediment loading into the major reservoirs in Trinity river basin. J Soil Water Conserv 68(5):372–383CrossRefGoogle Scholar
  18. Williams JR, LaSeur WV (1976) Water load model using SCS curve numbers. J Hydraul Div 102(9):1241–1253Google Scholar
  19. Wischmeier WH, Smith DD (1965) Predicting rainfall-erosion losses from cropland east of the Rocky Mountains—a guide for selection of practices for soil and water conservation. USDA Agricultural Handbook, No, p 282Google Scholar
  20. Yen B (1993) Criteria for evaluation of watershed models. J Irrig Drain Eng ASCE 119(3):429–442CrossRefGoogle Scholar

Copyright information

© Shiraz University 2017

Authors and Affiliations

  1. 1.Department of Water Engineering, Faculty of Civil EngineeringUniversity of TabrizTabrizIran

Personalised recommendations