The user supplies the twelve watershed characteristics necessary to determine the peak discharge estimates. Again, making appropriate and reliable estimates of watershed characteristics may be difficult or inconvenient for many users. We advise against using this option.
Required Characteristics
| Minimum
watershed elevation |
feet |
| Maximum
watershed elevation |
feet |
| Mean
slope |
degrees |
| Mean
elevation |
feet |
| Mean
2-year 24-hour precipitation intensity |
inches |
| Mean
January precipitation |
inches |
| Mean
July precipitation |
inches |
| Mean
annual snowfall |
inches |
| Mean
January minimum temperature |
degrees Fahrenheit |
| Mean
July minimum temperature |
degrees Fahrenheit |
| Mean
January maximum temperature |
degrees Fahrenheit |
| Mean
July maximum temperature |
degrees Fahrenheit |
| Mean
storage capacity |
inches |
| Mean
soil permeability |
inches per hour |
| Mean
soil depth to bedrock |
inches |