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Application of the software HaltFlood to the Piave river basin in Italy

pubblicazioni - Memoria

Application of the software HaltFlood to the Piave river basin in Italy

In questo articolo si presenta l’applicazione del software HaltFlood al serbatoio di Pieve di Cadore situato nell’alto bacino del Piave. I risultato ottenuto consiste nell’identificazione di criteri generali di gestione del serbatoio in relazione alla produzione idroelettrica e alla prevenzione del rischio.

The HaltFlood software tool has been tested to support the implementation of rules for flood attenuation operation by hydropower reservoirs inside the SEE HYDROPOWER EU Project. Financed by the South-East Transnational Cooperation Programme (EU), SEE HYDROPOWER Project has started on June 2009 and will last three years. In this paper we present the application of the software HaltFlood to the pilot case study of Pieve di Cadore reservoir, located in the upper Piave river basin, inside the Dolomites region of the north eastern Italian Alps. The HaltFlood tool is designed to simulate the precipitation-runoff processes, at river basin scale, along the main channel up to the areas to be protected against floods, considering the possible operations of dams located upstream. The software includes a physically based hydrological rainfall-runoff model, a reservoir flood operation model and a flood routing model based on Muskingum method. The model has been calibrated analyzing a significant flood event occurred in the Piave river basin closed at Belluno, and for which rainfall and discharge observations have been collected. The reservoir flood operation model allows to verify the possibility of applying a dynamic flood attenuation program in the Veneto Region, according to the Directive of the President of the Council of Ministers of 27th February 2004. The obtained result is the identification of general criteria to define methodologies concerning management strategies for reservoir dynamic operation, related to hydropower production and flooding risk prevention. A main task is to investigate whether it would be possible to reduce flood damage by pre-empting storage reservoir in order to catch the flood peak when it occurs and at the same time limiting the decrease of hydropower production.

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