Hydrology (Feb 2023)

Spatial Evaluation of a Hydrological Model on Dominant Runoff Generation Processes Using Soil Hydrologic Maps

  • Hadis Mohajerani,
  • Mathias Jackel,
  • Zoé Salm,
  • Tobias Schütz,
  • Markus C. Casper

DOI
https://doi.org/10.3390/hydrology10030055
Journal volume & issue
Vol. 10, no. 3
p. 55

Abstract

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The aim of this study was to simulate dominant runoff generation processes (DRPs) in a mesoscale catchment in southwestern Germany with the physically-based distributed hydrological model WaSiM-ETH and to compare the resulting DRP patterns with a data-mining-based digital soil map. The model was parameterized by using 11 Pedo-transfer functions (PTFs) and driven by multiple synthetic rainfall events. For the pattern comparison, a multiple-component spatial performance metric (SPAEF) was applied. The simulated DRPs showed a large variability in terms of land use, applied rainfall rates, and the different PTFs, which highly influence the rapid runoff generation under wet conditions.

Keywords