Skip to main content
Log in

A modified TOPMODEL introducing the bedrock surface topographic index in Huangbengliu watershed, China

  • Original Article
  • Published:
Journal of Mountain Science Aims and scope Submit manuscript

Abstract

Subsurface stormflow is a dominant runoff mechanism in steep humid mountainous areas. An insite measurement of subsurface stormflow suggests that the bedrock surface plays an important role in the runoff generation and routing process, which was rarely adopted in hydrological modelling studies. To improve the runoff simulation performance, the bedrock surface topographic index is introduced, and a modified TOPMODEL based on the bedrock surface topographic index is developed to simulate the runoff. The modified TOPMODEL is applied to the Huangbengliu (HBL), a steep watershed in Gongga Mountain, and proved to be more appropriate for the HBL watershed, especially for peak simulation. The Nash-Sutcliffe model efficiency (NSE) is improved from 0.24 to 0.58 in the calibration period and from 0.40 to 0.62 in the verification period. The result of this study can advance the understanding of the mechanism of flash floods and contribute flood control and disaster prevention in the HBL watershed and similar areas.

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

Access this article

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

Instant access to the full article PDF.

Similar content being viewed by others

References

Download references

Acknowledgements

The research reported in this manuscript was funded by the Major Program of National Natural Science Foundation of China (No. 41790431).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Yan-jun Zhang.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Qiu, An., Zhang, Yj., Wang, Gx. et al. A modified TOPMODEL introducing the bedrock surface topographic index in Huangbengliu watershed, China. J. Mt. Sci. 19, 3517–3532 (2022). https://doi.org/10.1007/s11629-021-7233-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11629-021-7233-1

Keywords

Navigation