Title: | Two model performance comparisons with multisite observations based on uncertainty methods for modeling hydrologic dynamics |
Authors: | Zhang, J., X. Lei and Q. Li |
Year: | 2018 |
Journal: | Journal of Irrigation and Drainage Engineering |
Volume (Issue): | 144(1) |
Pages: | |
Article ID: | 04017060 |
DOI: | 10.1061/(ASCE)IR.1943-4774.0001284 |
URL (non-DOI journals): | |
Model: | SWAT |
Broad Application Category: | hydrologic only |
Primary Application Category: | model and/or data comparison |
Secondary Application Category: | calibration, sensitivity, and/or uncertainty analysis |
Watershed Description: | 930 km^2 Peace River, located in central Florida. |
Calibration Summary: | |
Validation Summary: | |
General Comments: | |
Abstract: | The HSPF [Hydrologic Simulation Program—FORTRAN (Computer software). EPA National Exposure Research Laboratory,
Athens, Georgia] and SWAT [Soil and Water Assessment Tool (Computer software). USDA Agricultural Research Service and Texas A&M
AgriLife Research, Temple, Texas] models are often used to assess hydrological processes in a shallow water table setting. In the paper, these
two models are evaluated and compared for accuracy in simulating runoff to the Peace River Basin in Central Florida, based on the generalized
likelihood uncertainty estimation (GLUE) method. Both models performed reasonably well in predicting daily streamflow in three
gauges with acceptable R2 values (0.66–0.85) and Nash-Sutcliffe’s Ens (0.60–0.76) with reasonable P and R factors. The parameter sensitivity
was quantified, and the GLUE method involved Monte Carlo sampling over feasible spaces of calibration parameters. The parameter
pairwise correlation is investigated, as well as the uncertainties along with equifinality. The results indicate that HSPF and SWAT models
performed satisfactorily after the calibration and the parameters of both models are identified with considerable uncertainty. |
Language: | English |
Keywords: | Uncertainty; Generalized likelihood uncertainty estimation (GLUE); Sensitivity analysis; Hydrologic Simulation
Program—FORTRAN (HSPF); Soil and Water Assessment Tool (SWAT); Shallow water table runoff. |