RT Journal Article
SR Electronic
T1 Assessing uncertainties in WEPP's soil erosion predictions on rangelands
JF Journal of Soil and Water Conservation
FD Soil and Water Conservation Society
SP 512
OP 516
VO 50
IS 5
A1 M. Tiscareno-Lopez
A1 M. A. Weltz
A1 V. L. Lopes
YR 1995
UL http://www.jswconline.org/content/50/5/512.abstract
AB An assessment of uncertainties in predictions was performed for the WEPP model by identifying the contribution of parameter variance and model bias on the Mean Square Error of three model response variables. A Monte Carlo simulation scheme with correlated variable generation was assembled into WEPP to produce a large number of model responses to be compared to observed data of a semi-arid rangeland watershed. The behavior of errors and prediction intervals illustrate the model's ability to simulate the system. This analysis answered relevant questions related to model uncertainty and to identify noisy components in the model.