Title: | Modelling streamflow from two small South African experimental catchments using the SWAT model |
Authors: | Govender, M. and C.S. Everson |
Year: | 2005 |
Journal: | Hydrological Processes |
Volume (Issue): | 19(3) |
Pages: | 683-692 |
Article ID: | |
DOI: | 10.1002/hyp.5621 |
URL (non-DOI journals): | |
Model: | SWAT |
Broad Application Category: | hydrologic only |
Primary Application Category: | calibration, sensitivity, and/or uncertainty analysis |
Secondary Application Category: | hydrologic assessment |
Watershed Description: | 0.677 km^2 Cathedral Park Research C VI (grass) and 1.949 km^2 Cathedral Park Research C II (pine), located in east central South Africa. |
Calibration Summary: | Daily (1991; PEST; C VI) r2 = 0.86 |
Validation Summary: | Daily (1990-95; C VI) PEST r2 = 0.65; manual r2 = 0.68 |
General Comments: | SWAT calibration was performed for C VI (grassland) and then used on forested C II, to assess the model's ability to simulate aforestation effects. Automatic calibration using the PEST routine was compared with a manual calibration approach; the manual option resulted in slightly better results. 1950-65 C II streamflow was overpredicted, due to the model not being able to capture an increase in ET due to a maturing pine plantation. Modifications to SWAT are suggested to overcome this problem. |
Language: | English |
Keywords: | SWAT model; streamflow; evaporation; land use change; forest growth; verification; PEST |