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104 results on '"Lupiano, Valeria"'

2. Fusing Different Cellular Automata Models for Surface Flows in SCURRI: Viscosity Extension Step

Author

Lupiano, Valeria, Chidichimo, Francesco, Catelan, Paolo, Calidonna, Claudia R., Di Gregorio, Salvatore, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Bagnoli, Franco, editor, Baetens, Jan, editor, Bandini, Stefania, editor, and Matteuzzi, Tommaso, editor

Published
2024
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3. Final Sediment Outcome from Meteorological Flood Events: A Multi-modelling Approach

Author

Lupiano, Valeria, Calidonna, Claudia R., Avolio, Elenio, La Rosa, Salvatore, Cianflone, Giuseppe, Viscomi, Antonio, De Rosa, Rosanna, Dominici, Rocco, Alberico, Ines, Pelosi, Nicola, Lirer, Fabrizio, Di Gregorio, Salvatore, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Sergeyev, Yaroslav D., editor, and Kvasov, Dmitri E., editor

Published
2020
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4. A Probabilistic Approach to Risk Mapping for Mt. Etna

Author

Bongolan, Vena Pearl, Rongo, Rocco, Lupiano, Valeria, D'Ambrosio, Donato, Spataro, William, and Iovine, Giulio

Subjects
Computer Science - Computational Engineering, Finance, and Science
Abstract

We evaluate susceptibility to lava flows on Mt. Etna based on specially designed die-toss experiments using probabilities for type, time and place of activation from the volcano's 400-year recorded history and current studies on its known fractures and fissures. The types of activations were forcast using a table of probabilities for events, typed by duration and volume of ejecta. Lengths of time were represented by the number of activations to expect within a given time-frame, calculated assuming Poisson-distributed inter-arrival times for activations. Locations of future activations were forecast with a probability distribution function for activation probabilities. Most likely scenarios for risk and resulting topography were generated for Etna's next activation (average 7.76 years), the next 25, 50 and 100 years. Forecasts for areas most likely affected are in good agreement with previous risk studies made. Forecasts for risks of lava invasions, as well as future topographies might be a first. Threats to lifelines are also discussed., Comment: Most recent presentation of related material was at the IMACS 2013 World Congress, August 26-30, 2013, San Lorenzo de El Escorial, Spain

Published
2013

5. Simulations of Debris/Mud Flows Invading Urban Areas: A Cellular Automata Approach with SCIDDICA

Author

Lupiano, Valeria, Machado, Guillermo E., Crisci, Gino M., Di Gregorio, Salvatore, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, El Yacoubi, Samira, editor, Wąs, Jaroslaw, editor, and Bandini, Stefania, editor

Published
2016
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8. A Preliminary Cellular Model for Secondary Lahars and Simulation of 2005 Case of Vascún Valley, Ecuador

Author

Machado, Guillermo, Lupiano, Valeria, Avolio, Maria Vittoria, Di Gregorio, Salvatore, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Wąs, Jarosław, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2014
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11. A Preliminary Cellular Model for Sand Coastal Erosion and Experimental Contrast with Porto Cesareo Case

Author

Avolio, Maria Vittoria, Calidonna, Claudia Roberta, Rose, Marco Delle, Di Gregorio, Salvatore, Lupiano, Valeria, Pagliara, Tiziano Maria, Sempreviva, Anna Maria, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2012
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12. Simulation of Wildfire Spread Using Cellular Automata with Randomized Local Sources

Author

Avolio, Maria Vittoria, Di Gregorio, Salvatore, Lupiano, Valeria, Trunfio, Giuseppe A., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Sirakoulis, Georgios Ch., editor, and Bandini, Stefania, editor

Published
2012
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15. Development and Calibration of a Preliminary Cellular Automata Model for Snow Avalanches

Author

Avolio, Maria Vittoria, Errera, Alessia, Lupiano, Valeria, Mazzanti, Paolo, Di Gregorio, Salvatore, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Bandini, Stefania, editor, Manzoni, Sara, editor, Umeo, Hiroshi, editor, and Vizzari, Giuseppe, editor

Published
2010
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16. Evaluating Lava Flow Hazard at Mount Etna (Italy) by a Cellular Automata Based Methodology

Author

Avolio, Maria Vittoria, D’Ambrosio, Donato, Lupiano, Valeria, Rongo, Rocco, Spataro, William, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Wyrzykowski, Roman, editor, Dongarra, Jack, editor, Karczewski, Konrad, editor, and Wasniewski, Jerzy, editor

Published
2010
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17. Modelling Combined Subaerial-Subaqueous Flow-Like Landslides by Cellular Automata

Author

Avolio, Maria Vittoria, Lupiano, Valeria, Mazzanti, Paolo, Di Gregorio, Salvatore, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Umeo, Hiroshi, editor, Morishita, Shin, editor, Nishinari, Katsuhiro, editor, Komatsuzaki, Toshihiko, editor, and Bandini, Stefania, editor

Published
2008
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18. Evaluating Cellular Automata Models by Evolutionary Multiobjective Calibration

Author

Avolio, Maria Vittoria, D’Ambrosio, Donato, Di Gregorio, Salvatore, Lupiano, Valeria, Rongo, Rocco, Spataro, William, Trunfio, Giuseppe A., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Umeo, Hiroshi, editor, Morishita, Shin, editor, Nishinari, Katsuhiro, editor, Komatsuzaki, Toshihiko, editor, and Bandini, Stefania, editor

Published
2008
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19. Lava Invasion Susceptibility Hazard Mapping Through Cellular Automata

Author

D’Ambrosio, Donato, Rongo, Rocco, Spataro, William, Avolio, Maria Vittoria, Lupiano, Valeria, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, El Yacoubi, Samira, editor, Chopard, Bastien, editor, and Bandini, Stefania, editor

Published
2006
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24. Triggering of Rain-Induced Landslides, with Applications in Southern Italy.

Author

D'Ippolito, Antonino, Lupiano, Valeria, Rago, Valeria, Terranova, Oreste G., and Iovine, Giulio

Subjects
LANDSLIDES, RAINFALL, SLOPE stability, SHEARING force, HYDROLOGIC models
Abstract

Landslides cause fatalities, widespread damages and economic losses. Quite frequently, they are triggered by rainfall. Many studies have investigated the relationships between rainfall characteristics and landslide events. This paper reviews the two main approaches, physical and hydrological, for modelling such relationships. In the physical approach, the influence of rainfall on slope stability is commonly analysed in terms of groundwater infiltration, pore pressure changes and balance between shear stresses and resistances, therefore a considerable amount of hydrogeological, morphological and geotechnical data is required. In the hydrological approach, a statistical-probabilistic study of rainfall series and dates of occurrence of slope movements is instead carried out. Both types of methods are briefly presented, with examples from real applications to study cases in Southern Italy. In particular, the recent reactivations of a large rockslide in Northern Calabria have been modelled by means of physical and hydrological approaches. In addition, shallow landslides in Calabria, Campania and Sicily have been modelled by employing hydrological approaches. Strengths and weaknesses of the adopted methods are discussed, together with the causes that may have hindered better results for the considered cases. For the methods illustrated through real application cases, research perspectives are discussed, as well as their possible use in early warning systems. [ABSTRACT FROM AUTHOR]

Published
2023
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25. Indoor radon measurements in Calabria (Southern Italy).

Author

Lupiano, Valeria, Procopio, Salvatore, Buttafuoco, Gabriele, Rago, Valeria, and Iovine, Giulio

Subjects
*RADON, *SOIL air, *URBAN planning, *URBAN policy, *DOSIMETERS
Abstract

Radon gas from the ground is the main source of indoor concentrations in buildings, regardless of construction characteristics. According to Council Directive 2013/59/EURATOM, EU Member States must establish national reference levels for indoor radon concentrations in workplaces and draw up a National Radon Plan. In Calabria (Southern Italy), maps of indoor measurements at regional scale are not available. A set of 1434 average annual measurements, taken between 2010 and 2021, has been analysed. For a limited sector, a geostatistical approach allowed to map the expected concentrations at ground floor, the spatial uncertainty of estimates, and the probability of exceedance of the 300 Bq m−3 Italian threshold for workplaces. Highest values characterize the eastern border of the Sila massif. Obtained maps might be used to optimize locations of additional dosimeters, based on geological constraints. Such studies may support urban planning policies and provide recommendations on building techniques. [ABSTRACT FROM AUTHOR]

Published
2023
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38. Geomorphic effects caused by heavy rainfall in southern Calabria (Italy) on 30 October–1 November 2015

Author

Rago, Valeria, primary, Chiaravalloti, Francesco, additional, Chiodo, Giovanna, additional, Gabriele, Salvatore, additional, Lupiano, Valeria, additional, Nicastro, Rosa, additional, Pellegrino, Annamaria D., additional, Procopio, Antonio, additional, Siviglia, Salvatore, additional, Terranova, Oreste G., additional, and Iovine, Giulio G. R., additional

Published
2017
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40. Cellular automata for modeling and simulating complex phenomena : lahars

Author

Machado Sotomayor, Guillermo Edvin, Salvatore Di Gregori, Salvatore, Lupiano, Valeria, and Leone, Nicola

Subjects
Cellular automata, Natural hazard, Lahars
Abstract

Lahars represent one of the most destructive natural disasters regarding the loss of human lives and property damage in their path. Lahars are very complex surface flows of two types: primary lahars originated directly from eruptive volcanic activity, and secondary lahars originated in post-eruptive events or quiescent periods. Lahars are a complex combination of many interrelated processes besides the process of surface flow: rainwater percolation in the soil (secondary lahars), volcanic stratum erosion, water inclusion and extrusion in lahar, ice melting and mixing with volcanic emissions (primary lahars). Evaluating the hazard posed by lahars constitutes a significant challenge within the framework of modeling and simulation of complex systems for reducing hazard in many, sometimes very populous, inhabited areas next some dangerous volcanoes. A variety of approaches has been taken to modeling the behaviors of lahars and the hazards posed to downstream communities: empirical models based on smart correlations of phenomenon observables, simple rheological and hydrological models and Partial Differential Equations (approximating numerical methods of fluid dynamics). Cellular Automata (CA) represent an alternative approach for modeling and simulating complex systems evolving on the base of local interactions of their elementary components. Lahars may be classified as such a type of phenomenon. Moreover, a CA modeling methodology has been developed for simulating surface flows. CA are a parallel computational paradigm for modeling complex systems by defining ‘simple’ laws at a local level that generate a global ‘complex’ evolution. The research, reported in this thesis, adopts a Multicomponent (or Macroscopic) Cellular Automata (MCA) approach that was applied to other complex surface flows. The model LLUNPIY has been developed in this frame, and successful simulations of real events were performed. The goal of this thesis has been to develop a CA model, LLUNPIY (Lahar modeling by Local rules based on an UNderlying PIck of Yoked processes, from the Kichwa word llunp’iy meaning flood), which is based on the CA semi-empirical approach to macroscopic phenomena of Di Gregorio and Serra, in order to simulate the complex dynamics of lahars, taking into account experience of models like SCIDDICA, SCIARA, PYR, VALANCA and SCAVATU. Dottorato di Ricerca in Matematica ed Informatica, XXVII Ciclo SSD INF/01a.a. 2015-2016 Università della Calabria

Published
2015
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43. From examination of natural events a proposal for risk mitigation of lahars by a cellular automata methodology: a case study for Vascún valley, Ecuador.

Author

Lupiano, Valeria, Chidichimo, Francesco, Machado, Guillermo, Catelan, Paolo, Molina, Lorena, Straface, Salvatore, Crisci, Gino M., and Di Gregorio, Salvatore

Subjects
LAHAR mitigation, VOLCANIC ash, tuff, etc., CELLULAR automata, ENVIRONMENTAL disasters, ENVIRONMENTAL impact analysis, CLIMATE change
Abstract

Lahars are erosive floods, mixtures of water and pyroclastic deposits, they look the biggest environmental disaster as number of fatalities in the volcanic areas. Security measures have been recently adopted in the threatened territories, by constructing retaining dams and embankments in key positions. Such solutions could involve a strong environmental impact for the works and the continuous accumulation of volcanic deposits, such that equilibrium conditions could lack far, triggering more disastrous events. An improved version of the Cellular Automaton model LLUNPIY for lahars simulations is presented. The growing frequency of lahars, maybe for the climatic change, in the Vascún Valley of Tungurahua Volcano, Ecuador has recently produced smaller and less dangerous events, sometimes favoured by the collapse of temporary ponds, generated by small landslides. An investigation is here performed in order to reproduce such situations in controlled way by the use of LLUNPIY simulations. Using precise field data, points are individuated where dams by backfills, easy to collapse, can produce momentary ponds; LLUNPIY simulations permit to project triggering of small lahars by minor rainfall events or to project in the case of larger rainfalls the anticipation of lahar detachment, avoiding simultaneous and dangerous confluence with other lahars. [ABSTRACT FROM AUTHOR]

Published
2019
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44. Examples of Application of GASAKe for Predicting the Occurrence of Rainfall-Induced Landslides in Southern Italy.

Author

Terranova, Oreste, Gariano, Stefano Luigi, Iaquinta, Pasquale, Lupiano, Valeria, Rago, Valeria, and Iovine, Giulio

Subjects
LANDSLIDES, RAINFALL
Abstract

GASAKe is an empirical-hydrological model aimed at forecasting the time of occurrence of landslides. Activations can be predicted of either single landslides or sets of slope movements of the same type in a homogeneous environment. The model requires a rainfall series and a set of dates of landslide activation as input data. Calibration is performed through genetic algorithms, and allows for determining a family of optimal kernels to weight antecedent rainfall properly. As output, the mobility function highlights critical conditions of slope stability. Based on suitable calibration and validation samples of activation dates, the model represents a useful tool to be integrated in early-warning systems for geo-hydrological risk mitigation purposes. In the present paper, examples of application to three rock slides in Calabria and to cases of soil slips in Campania are discussed. Calibration and validation are discussed, based on independent datasets. Obtained results are either excellent for two of the Calabrian rock slides or just promising for the remaining case studies. The best performances of the model take advantage of an accurate knowledge of the activation history of the landslides, and a proper hydrological characterization of the sites. For such cases, GASAKe could be usefully employed within early-warning systems for geo-hydrological risk mitigation and Civil Protection purposes. Finally, a new release of the model is presently under test: its innovative features are briefly presented. [ABSTRACT FROM AUTHOR]

Published
2018
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45. Simulation of Submarine Landslides by Cellular Automata Methodology

Author

Di Gregorio Salvatore, Mazzanti Paolo, Lupiano Valeria, Bozzano Francesca, and V. Avolio Maria

Subjects
Erosion, Submarine, Landslide, Underwater, Geology, Seismology, Cellular automaton, Seabed, Debris flow, Submarine landslide
Abstract

Numerical modelling is a powerful tool for assessing risk related to submarine landslides and their possible consequences (i.e. impact on structures, induced tsunamis, etc.). To this aim, the simulation of the propagation phase of flow-like landslides is particularly important. A new model (named SCIDDICA-SS2), which is based on the Macroscopic Cellular Automata computational paradigm, has been specifically designed for the simulation of coastal and underwater landslides. SCIDDICA-SS2 is a fully 3D model based on the equivalent fluid approach. It accounts for the most important mechanism controlling the propagation of an underwater landslide as well as peculiar mechanisms like erosion of the seabed, hydroplaning and air to water impact (in the case of coastal landslides). The 1997 debris flow (subaerial–submerged landslide) at Lake Albano (Italy), the 2008 submarine debris flow at Bagnara Calabra (Italy) and the 1888 submarine debris flow at Trondheim (Norway) have been simulated by SCIDDICA-SS2, showing its high performances in simulating submarine landslides.

Published
2013
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46. Definizione di una metodologia per la creazione di mappe di rischio tramite l'utilizzo di un modello ad automi cellulari: applicazione ai flussi lavici del Monte Etna

Author

Lupiano, Valeria, Robustelli, Gaetano, Rongo, Rocco, Spataro, William, and Russo, Franco

Subjects
Geochimica, Automi cellulari, Vulcanologia
Abstract

Scuola di Dottorato" Archimede" in Scienze, Comunicazione e Tecnologie, Dottorato di Ricerca in Scienze della Terra, XXIV Ciclo, a.a. 2008-2011 Università della Calabria

Published
2011

47. A CA model for beach morphodynamics

Author

Calidonna, Claudia. R., primary, De Pino, Mariafrancesca, additional, Di Gregorio, Salvatore, additional, Gullace, Francesco, additional, Gullì, Daniel, additional, and Lupiano, Valeria, additional

Published
2016
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50. A CA Model for Beach Morphodynamics.

Author

Calidonna, Claudia. R., De Pino, Mariafrancesca, Di Gregorio, Salvatore, Gullace, Francesco, Gullì, Daniel, and Lupiano, Valeria

Subjects
COMPUTER simulation, CELLULAR automata, COASTAL changes, MOUNTAINS, COMPUTATIONAL complexity
Abstract

CAs coastal dynamics is a very complex system, computer simulation is a valid approach to plan real action. During SIGIEC Project a new Macroscopic Cellular Automata was designed i.e. RUSICA for morphodynamics studies of the beaches. MCA methodology, used for investigating natural macroscopic systems, is an alternative approach to PDE. Through local interactions of their constituent parts MCA operating on different specification levels to be compared to experimental data. Simulation allowed to study the dynamics and modified orography with artificial solutions for erosion contrast as at Porto Cesareo (Apulia Italy). Results of simulations of different scenarios of stormy sea in that area here are given together with evidence of effect of artificial barrier built in order to contrast the coastal erosion progress. [ABSTRACT FROM AUTHOR]

Published
2016
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