Geoscience Reference
In-Depth Information
Figure 5.8
SHE model blind evaluation tests for Slapton Wood catchment, Devon, UK (1/1/90-31/3/91):
(a) comparison of the predicted discharge bounds and measured discharge for the Slapton Wood outlet weir
gauging station; (b) comparison of the predicted discharge bounds and measured monthly runoff totals for
the outlet weir gauging station (after Bathurst et al., 2004, with kind permission of Elsevier).
order of 30% of the total flow) and an internal gauging site, but failed in bracketing the time series for
the discharges (Figure 5.8) and the distribution of monthly flow totals at the internal site. They reasoned
that this was, in part, due to the process representations in this version of SHETRAN, which could not
predict a downslope subsurface flow component in the soil until it was saturated from below.
5.5 Simplified Distributed Models
The latest versions of SHE and similar physically based rainfall-runoff models represent the most complex
rainfall-runoff models available. They have the advantage that they are based on physical theory though,
