Abstract
Rainfall-Runoff Models (RRM) allow the use of most of the fast procedures (like the Rational Method) aimed at transferring the probability laws from the rainfalls to the discharges. In fact, the time of concentration of a basin (in order to select a proper rainfall from the IDF curves) as well as the infiltration rate, highly affect the estimation of the T-years discharge; it follows the necessity of calibrating an RRM, for deriving the characteristics of the basin under observation, by using the ones obtained for a similar, gaged, basin. A complete model of the rainfall-runoff transformation (i.e. a model which takes into account the underground portion of the hydrograph, even if the maximum discharge during a flood is mainly due to the surface runoff) is needed. Also it is required to handle the almost unavoidable asynchronism between rainfall and discharge records during the calibration of a model. After a particular RRM is chosen, the proposed solution (i.e., the introduction of an extra unknown, the time-lag between rainfall and discharges, and the contemporaneous fitting of a set of different events) is tested with respect to two small mountain basin in northern Italy.
| Original language | English (US) |
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| Pages | 171-175 |
| Number of pages | 5 |
| State | Published - 1998 |
| Externally published | Yes |
| Event | Proceedings of the 1998 25th Annual Conference on Water Resources Planning and Management - Chicago, IL, USA Duration: Jun 7 1998 → Jun 10 1998 |
Other
| Other | Proceedings of the 1998 25th Annual Conference on Water Resources Planning and Management |
|---|---|
| City | Chicago, IL, USA |
| Period | 6/7/98 → 6/10/98 |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Water Science and Technology