Skip to main content

Advertisement

Log in

Comparative Assessment of SWAT Model Performance in two Distinct Catchments under Various DEM Scenarios of Varying Resolution, Sources and Resampling Methods

  • Published:
Water Resources Management Aims and scope Submit manuscript

Abstract

The aim of this study is to evaluate the performance of hydrological model - Soil & Water Assessment Tool (SWAT) in two distinct catchments, under various Digital Elevation Model (DEM) scenarios of varying resolution (from 30 m to 300 m), sources (SRTM, ASTER and CartoDEM) and resampling methods (nearest neighbour, bilinear interpolation, majority and cubic convolution) available with ArcGIS software package. A comparison was made in between model response of highly elevated Himalayan Upper Teesta catchment and peninsular monsoon dominated Upper Narmada catchment in India. Model performance was assessed & subsequently compared based on statistical measures such as coefficient of determination (R2) and Nash-Sutcliffe Efficiency (NSE), for monthly runoff and sediment yield. The sensitivity of monthly model outputs of runoff, sediment yield, Total Nitrogen (TN) & Total Phosphorous (TP) towards DEM scenarios was studied based on Relative Difference (RD). The key findings of this study are: 1) topographic characteristics of Upper Teesta catchment were found to be more sensitive towards various DEM scenarios compared with Upper Narmada catchment; 2) model performance in simulating monthly runoff was found to be unaffected for both catchments due to changes in DEM resolution & resampling method; 3) in simulating monthly sediment yield, model performance was affected due to all DEM scenarios for Upper Narmada catchment, while scenarios of changing DEM resolution and resampling method have affected model performance for Upper Teesta catchment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
$34.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or eBook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

Explore related subjects

Discover the latest articles and news from researchers in related subjects, suggested using machine learning.

References

Download references

Acknowledgements

This present research work has partly been carried out under DST research project no. YSS/2014/000878 and financial support is gratefully acknowledged.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Manish Kumar Goyal.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Goyal, M.K., Panchariya, V.K., Sharma, A. et al. Comparative Assessment of SWAT Model Performance in two Distinct Catchments under Various DEM Scenarios of Varying Resolution, Sources and Resampling Methods. Water Resour Manage 32, 805–825 (2018). https://doi.org/10.1007/s11269-017-1840-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11269-017-1840-1

Keywords