Search results for " idrologia"
showing 10 items of 476 documents
A physically-based and distributed approach to analyze rainfall-triggered landslides at a watershed scale
2009
Remote Sensing for Agriculture, Ecosystems, and Hydrology XII
2010
Remote Sensing for Agriculture, Ecosystems, and Hydrology XI
2009
Can uncertainty in flood hazard estimation be reduced by using high detailed topographic data for floodplain modelling?
2011
Floods are considered the most frequent natural disaster world-wide and may have serious socio economic impacts in a community. In order to accomplish flood risk mitigation, flood risk analysis and assessment are required to provide information on current or future flood hazard and risks. Hazard and risk maps involve different data, expertise and effort, depending also on the end-users. More or less advanced deterministic approaches can be used, but intuitively probabilistic approaches seem to be more correct and suited for modelling flood inundation given typical uncertainties. Two very important matters remain open for research: the calibration of hydraulic models (oriented towards the es…
A weather monitoring system for the study of precipitation fields, weather, and climate in an urban area
2014
The possibility to study the precipitation dynamics with advanced and specific tools is an important task of the research activity addressing the understanding, the modeling, and the managing of rainfall events. Over the last years, the hydrology laboratory of the Department of Civil, Environmental, Aerospace Engineering, and Materials (DICAM) at the University of Palermo, has installed several instruments for the monitoring and the study of precipitation within the urban area of Palermo (Italy). The main instrument of this system is the X-band weather radar, which allows monitoring the precipitation fields with high resolution in space and time. This instrument is supported by a rain gauge…
Influenza dell'incertezza relativa alla scala delle portate sulla modellazione afflussi-deflussi a scala giornaliera
2006
Le misure di portate defluenti in un corso d’acqua sono solitamente affette da Incertezza dovuta ad una serie di cause concorrenti che influenza fortemente la risposta dei modelli afflussi-deflussi. Nella presente memoria viene analizzata l’influenza dell’incertezza relativa alla scala di deflusso sulla modellazione della risposta idrologica di un bacino idrografico a scala giornaliera. A tal fine è stato utilizzato un modello concettuale, basato sulla teoria dell’IUH (Instantaneous Unit Hydrograph), che tiene conto insieme delle trasformazioni lineari e non lineari che conducono alla formazione del deflusso fluviale a partire da dati giornalieri di pioggia, temperatura dell’aria. La Propag…
Scheletrizzazione di modelli di sistemi di approvvigionamento idrico regionali – Un caso di studio
2016
In questo lavoro viene esaminata la possibilità di ridurre i tempi di calcolo, mediante la "scheletrizzazione" dei modelli, adottando come caso di studio un sistema di approvvigionamento idrico regionale reale, modellato in ambiente AQUATOR. La scheletrizzazione è stata in origine introdotta nel campo dell'ingegneria idraulica al fine di includere nei modelli idraulici delle reti solo le parti dalla rete reale che hanno un significativo impatto sul funzionamento del sistema, riducendo l'onere computazionale ma permettendo comunque di ottenere risultati accurati ed affidabili (Walski et al., 2007; Eggener & Polkowski, 1976; Shamir & Hamberg, 1988a,b). Il principio di base della scheletrizzaz…
"Front Matter: Volume 9637", Proc. SPIE 9637, Remote Sensing for Agriculture, Ecosystems, and Hydrology XVI
2015
This proceedings volume includes papers presented during the conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology. The conference was part of the International Symposium on Remote Sensing sponsored by SPIE. The symposium was held at the Centre de Congrès Pierre Baudis, Toulouse, France, 21- 24 September 2015. The conference is dedicated to providing rapid dissemination of scientific and technical information, and attracts scientists and professionals from throughout Europe, Africa, Asia, and the Americas. Approximately 34 oral and 25 poster presentations were given this year, covering a broad range of topics in the field of remote sensing applications in environmental sci…
Introduction
2013
This proceedings volume contains papers presented during the conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XV. The conference was part of the 20th International Symposium on Remote Sensing sponsored by SPIE—The International Society for Optical Engineering. The symposium was held at the Internationales Congress Center, Dresden, Germany, from 23rd to 26th of September 2013. The conference is dedicated to providing rapid dissemination of scientific and technical information, and attracted scientists and professionals from throughout Europe, Africa, Asia, and the Americas. Approximately 40 oral and 20 poster presentations were given, covering a broad range of topics i…
Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII
2011
This proceedings volume contains papers presented during the conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII. The conference was part of the 18th International Symposium on Remote Sensing sponsored by SPIE—The International Society for Optical Engineering. The symposium was held at the Clarion Congress Hotel Prague, Prague, Czech Republic, from 19th to 21th of September 2011. The conference is dedicated to providing rapid dissemination of scientific and technical information, and attracted scientists and professionals from throughout Europe, Africa, Asia, and the Americas. Approximately 45 oral and 30 poster presentations were given, covering a broad range of to…