Moramarco T., Barbetta S., Melone F. & Singh V.P., 2006, A real-time stage Muskingum forecasting model for a site without rating curve, Hydrological sciences journal 51 (2006): 66–82. doi_10.1623/hysj.51.1.66,
URL: http://www.cnr.it/prodotto/i/41524

An adaptive model for on-line stage forecasting is proposed for river reacheswhere significant lateral inflow contributions occur. The model is based on the Muskingum method and requires the estimation of four parameters if the downstream rating curve is unknown; otherwise only two parameters have to be determined. As the choice of the forecast lead time is linked to wave travel time along the reach, to increase the lead time, a schematization of two connected river reaches is also investigated. The variability of lateral inflow is accounted for through an on-line adaptive procedure. Calibration and validation of the model were carried out by applying it to different flood events observed in two equipped river reaches of the upper-middle Tiber basin in central Italy, characterized by a significant contributing drainage area. Even if the rating curve is unknown at the downstream section, the forecast stage hydrographs were found in good agreement with those observed. Errors in peak stage and time to peak along with the persistence coefficient values show that the model has potential as a practical tool for on-line flood risk management.

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