Search results for "L-moments"
showing 5 items of 5 documents
Use of L-moments approach for regional flood frequency analysis in Sicily, Italy
2008
Extremely great floods are among environmental events with the most disastrous consequences for the entire world. Estimates of their return periods and design values are of great importance in hydrologic modeling, engineering practice for water resources and reservoirs design and management, planning for weather-related emergencies, etc. Regional flood frequency analysis resolves the problem of estimating the extreme flood events for catchments having short data records or ungauged catchments. This paper analyzes annual maximum peak flood discharge data recorded from more than 50 stream flow gauging sites in Sicily, Italy, in order to derive regional flood frequency curves. First these data…
Regional frequency analysis of extreme rainfall in Sicily (Italy)
2018
Extreme rainfall events have large impacts on society and are likely to increase in intensity under climate change. For design and management decisions, particularly regarding hydraulic works, accurate estimates of precipitation magnitudes are needed at different durations. In this article, an objective approach of the regional frequency analysis (RFA) has been applied to precipitation data for the island of Sicily, Italy. Annual maximum series for rainfall with durations of 1, 3, 6, 12, and 24 h from about 130 rain gauges were used. The RFA has been implemented using principal component analysis (PCA) followed by a clustering analysis, through the k-means algorithm, to identify statistical…
REGIONAL FREQUENCY ANALYSIS FOR EXTREME RAINFALL IN SICILY
2008
Analisi regionale delle piogge intense in Sicilia
2008
Mappatura del deflusso annuo superficiale in Sicilia
2007
Nella risoluzione di numerosi problemi pratici dell’idrologia delle acque superficiali è importante poter far affidamento su informazioni relative ai deflussi che siano contemporaneamente affidabili e diffuse sul territorio.La creazione di uno strumento capace di restituire il deflusso e soprattutto la portata che attraversa una determinata sezione di un corso d’acqua è di fondamentale importanza sia per la pianificazione delle risorse idriche in una data regione sia per l’individuazione delle possibili zone soggette al rischio della desertificazione. La stima del deflusso superficiale permette inoltre la determinazione dei concentrazione degli inquinanti, concentrati o diffusi, nei corpi i…