| Product(s): | CivilStorm, SewerGEMS |
| Version(s): | 10.XX.XX.XX, 08.11.XX.XX |
| Area: | Modeling |
| Original Author: | Scott Kampa, Bentley Technical Support Group |
When calculating a model, the following user notification is generated:
"The wrong type of storm event is specified. For SCS or SBUH-based hydrology you should use either a time-depth curve or a time-fraction curve. For rational method based catchments, use an I-D-F curve or a, b, n coefficients."
This user notification means that the wrong type of storm is being used for the runoff method assigned to the catchment, such as an IDF curve being used with a Modified Rational Hydrograph. Check the storm data and catchment runoff method to assure that correct data is being used.
Understanding the Modified Rational Method
This rainfall method must be associated with either time-depth or time-intensity storm event