Reducing predictive uncertainty in model simulations : a comparison of two methods using the European Soil Erosion Model (EUROSEM)

Auteur(s) et Affiliation(s)

QUINTON, J.N.

Dep. Natural Resources Management, School of Agriculture, Cranfield Univ., Silsoe, Bedford, Royaume-Uni

Description :
The simulation results from physically-based hydrology and erosion models contain uncertainty, and it is therefore desirable for it to be reduced. Two methods are considered : one which relies on improved parameter set selection, and a second which derives physical parameters from observed hydrographs. Both methods are compared with a blind application of the model and observed data. The results suggest that, while both methods may be successful in reducing the variation in model output, the coincidence with the observed data deteriorates.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 1997, vol. 30, n°. 2-3, p. 101-117, Collation : Illustration, Références bibliographiques : 34 ref.

Date :
1997

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais