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DatoValore
TitleUncertainties in flow duration curves in anthropized catchments
AbstractFlow Duration Curves (FDC) are a traditional tool in water resources management. Their applications range from environmental protection planning to hydrosystems design. In many problems natural FDC are needed, that is curves referring to river regimes before alterations due to anthropic water uses. Estimation of FDC, as known, is uncertain in ungauged catchments. Also in gauged catchments, however, uncertainty may be relevant if available flow data are few or recorded after the anthropic alterations were set. This uncertainty may be high in mountain rivers, whose regime is typically more irregular and with significant alterations, mostly due to withdrawals for hydropower uses. The scope of this paper is to analyze these uncertainties, using a methodology to link anthropic uses to FDC alterations. Application to a catchment in the southwestern Alps is finally presented.
SourceRAVAGE of the Planet IV, Southampton, UK, 1-3 luglio 2015
KeywordsFlow-Duration CurvesHydrological alterationsHydrological uncertainties
Year2015
TypeContributo in atti di convegno
AuthorsBecciu, Gianfranco and Dresti, Claudia
Text373914 2015 Flow Duration Curves Hydrological alterations Hydrological uncertainties Uncertainties in flow duration curves in anthropized catchments Becciu, Gianfranco and Dresti, Claudia Politecnico di Torino; CNR ISE Flow Duration Curves FDC are a traditional tool in water resources management. Their applications range from environmental protection planning to hydrosystems design. In many problems natural FDC are needed, that is curves referring to river regimes before alterations due to anthropic water uses. Estimation of FDC, as known, is uncertain in ungauged catchments. Also in gauged catchments, however, uncertainty may be relevant if available flow data are few or recorded after the anthropic alterations were set. This uncertainty may be high in mountain rivers, whose regime is typically more irregular and with significant alterations, mostly due to withdrawals for hydropower uses. The scope of this paper is to analyze these uncertainties, using a methodology to link anthropic uses to FDC alterations. Application to a catchment in the southwestern Alps is finally presented. 4th International Conference on Management of Natural Resources, Sustainable Development and Ecological Hazards C.A. Brabbia 978 1 84564 970 8 Published version In RAVAGE of the Planet IV 4th International Conference on Management of Natural Resources, Sustainable Development and Ecological Hazards Southampton, UK, 1 3 luglio 2015 . Proceedings, pp. 123 134. C.A. Brebbia ed. . WIT Press, 2015. RAVAGE of the Planet IV Southampton, UK 1 3 luglio 2015 Internazionale Contributo Capitolo 2015_Capitolo_Dresti_123_134.pdf Contributo in atti di convegno claudia.dresti DRESTI CLAUDIA