Calibration and Validation of SWAT Model for Low Lying Watersheds: A Case Study on the Kliene Nete Watershed, Belgium

Authors

  • Narayan K. Shrestha PhD researcher, Department of Hydrology & Hydraulic Engineering, Vrije Universiteit Brussels
  • P C Shakti Department of Meteorology, Tribhuvan University
  • Pabitra Gurung Consulting Engineer in Prarup Development Pvt. Ltd. Lalitpur, Nepal.

DOI:

https://doi.org/10.3126/hn.v6i0.4194

Keywords:

SWAT, WETSPRO, Kliene Nete Watershed (Belgium), NSE

Abstract

Use of easily accessible; public domain modeling software called Soil and Water Assessment Tool (SWAT) and its testing in watersheds has become essential to check developers' claims of its applicability. The SWAT model performance on Kliene Nete Watershed (Belgium) is examined. Given the watershed’s characteristic of a low lying; shallow ground water table, the test becomes an interesting task to perform. This paper presents calibration and validation of the watershed covering area of 581km2 . Flow separation is carried on using Water Engineering Time Series Processing tool (WETSPRO) and shows that around 60% of the total fow is contributed by base fow. Altogether seven SWAT model parameters have been calibrated with heuristic approach for the time frame of 1994-1998. Validation of these calibrated parameters in another independent time frame (1999-2002) is carried out. The parameter CH_k2 (Channel Effective Hydraulic Conductivity) is found to be the most sensitive. Nash Sutcliff Efficiency (NSE) values for the calibration and validation periods are found to be 74 and 67 percent-age, respectively. These ‘goodness-of-ft’ statistics, supported by graphical representations, show that the SWAT model can simulate such watershed with reasonable accuracy.

Key words: SWAT; WETSPRO; Kliene Nete Watershed (Belgium); NSE

DOI: 10.3126/hn.v6i0.4194

Hydro Nepal

Journal of Water, Energy and Environment

Vol. 6, January 2010

Page: 47-51

Uploaded Date: 24 January, 2011

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Author Biographies

Narayan K. Shrestha, PhD researcher, Department of Hydrology & Hydraulic Engineering, Vrije Universiteit Brussels


P C Shakti, Department of Meteorology, Tribhuvan University

Master in Meteorology, Tribhuvan
University Nepal, and Master in Water Resources
Engineering, Katholieke Universiteit Leuven, Belgium

Pabitra Gurung, Consulting Engineer in Prarup Development Pvt. Ltd. Lalitpur, Nepal.

Master in Water Resources Engineering, Katholieke Universiteit Leuven, Belgium

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How to Cite

Shrestha, N. K., Shakti, P. C., & Gurung, P. (2011). Calibration and Validation of SWAT Model for Low Lying Watersheds: A Case Study on the Kliene Nete Watershed, Belgium. Hydro Nepal: Journal of Water, Energy and Environment, 6, 47–51. https://doi.org/10.3126/hn.v6i0.4194

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