| Title: | Comparison of two different approaches of sensitivity analysis |
| Authors: | Lenhart, T., K. Eckhardt, N. Fohrer and H.-G. Frede |
| Year: | 2002 |
| Journal: | Physics and Chemistry of the Earth |
| Volume (Issue): | 27(9-10) |
| Pages: | 645-654 |
| Article ID: | |
| DOI: | 10.1016/S1474-7065(02)00049-9 |
| URL (non-DOI journals): | |
| Model: | SWAT-G |
| Broad Application Category: | hydrologic and pollutant |
| Primary Application Category: | sensitivity analysis |
| Secondary Application Category: | pollutant cycling/loss and transport |
| Watershed Description: | 2 km^2 artificial watershed, which is formed as a V-shaped valley which is designed to represent a low mountain range. The main characteristics of the artificial catchment are representative of the 693 km^2 Dill catchment, a mesoscale low mountain range catchment situated in the south-east of the Rhenish Massif region in Germany. |
| Calibration Summary: | |
| Validation Summary: | |
| General Comments: | Two approaches for calculating a dimensionless index (I), which represents the ratio between the relative change in model output to the relative change of a parameter, are presented. The two approaches differed in how the ranges of parameter variation are defined. Similar results were found with both methods. Qualitative effects on parameters related to flow and pollutant movement are reported; no direct SWAT output is provided. |
| Language: | English |
| Keywords: | Sensitivity analysis; Uncertainty; Model calibration; Water quality; Distributed models |