Abstract
SWAT is a semi-distributed, lumped parameter, continuous time model that simulates hydrology and water quality in watersheds. Traditionally, the model operated at a daily time step and it estimated the influence of landuse and management practices on water and agricultural chemical yields in a watershed. The daily time step format may not be sufficient to capture the impact of flashy storms where peak flows last for minutes only and are not reflected in daily average flows. A sub-hourly SWAT model for urban applications was developed but is not widely used. The main goal of this study was to present a basic methodology to calibrate sub-hourly SWAT models using SWAT-CUP. SWAT was tested using data from the Blunn Creek Watershed in Austin, Texas. The model was calibrated and evaluated using two separate representative 2-year periods bracketing hydrologic conditions experienced in the watershed. Results show that the sub-hourly SWAT provides reasonable estimates of stream flow for multiple storm events.
| Original language | English |
|---|---|
| Number of pages | 7 |
| Journal | International Journal of Sustainable Water and Environmental Systems |
| Volume | 9 |
| Issue number | 1 |
| Publication status | Published - 2017 |
| Externally published | Yes |