CAFARO S., AGOSTA F., GUEGUEN E., PARISE M. & SCHIATTARELLA M., 2013, Karst system evolution and the role of faulting_ the case of the Alburni Mts.,
FIST Geoitalia 2013, IX Forum di Scienze della Terra, pp. 76–76, Pisa, 16-18 settembre 2013,
Parise M., 2013, INTRODUCTION TO THE INTERNATIONAL WORKSHOP ON SPELEOLOGY IN ARTIFICIAL CAVITIES “CLASSIFICATION OF THE TYPOLOGIES OF ARTIFICIAL CAVITIES IN THE WORLD”,
Opera Ipogea 1 (2013): 3–6.,
Parise M., 2013, Interplay between man and karst hazards_ are we victims or triggering factors?,
FIST Geoitalia 2013, IX Forum di Scienze della Terra, pp. 178–178, Pisa, 16-18 settembre 2013,
PARISE M., 2013, Influenza dei fattori geologici nella speleogenesi delle cavità artificiali,
Le cavità artificiali dalla riscoperta alla valorizzazione turistica, pp. 139–155, Urbino, 2-4 dicembre 2011,
DE WAELE J., MADONIA G., MENICHETTI M., PARISE M., PICCINI L., SANNA L., SAURO F., VATTANO M. & VIGNA B., 2013, Hypogenic caves in Italy_ a review,
21st International Karstological School "Hypogene speleogenesis (between theory and reality...), pp. 82–82, Postojna (Slovenia), 10-14 June 2013,
Parise M., Galeazzi C., Germani C., Sammarco M., 2013, Hydraulic works_ the Map of the Ancient Underground Aqueducts,
Opera Ipogea 1 (2013): 21–28.,
Parise M., De Pasquale P., Martimucci V., Meuli V., Pentimone N., Pepe P., 2013, Grotta della Rondinella a Polignano a Mare_ un progetto di ricerca della Federazione Speleologica Pugliese,
XXI Congresso Nazionale di Speleologia, pp. 437–448, Trieste, 2-5 giugno 2011,
VESSIA G. & PARISE M., 2013, GIS-based landslide hazard evaluation at the regional scale_ some critical points in the permanent displacement approach for seismically-induced landslide maps,
Geophysical research abstracts 15 (2013): 9250–9250.,
PARISE M., 2013, Geohazards in karst, and amplification of the related effects due to land mismanagement,
Florisa Melone Memorial Conference, Assisi, 10-11 ottobre 2013,
De Waele J., Parise M., 2013, Discussion on the article ‘Coastal and inland karst morphologies driven by sea level stands_ a GIS based method for their evaluation’,
Earth surface processes and landforms (Print) 38 (2013): 902–907. doi_10.1002/esp.3412,
DOI: 10.1002%2Fesp.3412
Parise M., Vennari C., 2013, Database cronologico dei sinkholes in Italia,
2013,
Fiore A., Parise M., 2013, Cronologia degli eventi di sprofondamento in Puglia, con particolare riferimento alle interazioni con l’ambiente antropizzato,
Memorie descrittive della carta geologica d'Italia 93 (2013): 239–252.,
FIORE A. & PARISE M., 2013, Cronologia degli eventi di sprofondamento in Puglia, con particolare riferimento alle interazioni con l’ambiente antropizzato,
Memorie descrittive della carta geologica d'Italia 93 (2013): 201–214.,
MARGIOTTA S., NEGRI S., PAGLIARA A., PARISE M. & QUARTA T.A.M., 2013, Combining geological and geophysical surveys with cave explorations for the assessment of the sinkhole susceptibility in coastal areas,
Geophysical research abstracts 15 (2013): 8185–8185.,
Parise M., Marangella A., Maranò P., Sannicola G., Sammarco M., 2013, Collecting, transporting and storing water in karst settings of southern Italy_ some lessons learned from ancient hydraulic systems,
Water science and technology_ water supply (Print) 13 (2013): 674–682.,
Parise M., Galeazzi C., Bixio R., Dixon R., 2013, CLASSIFICATION OF ARTIFICIAL CAVITIES_ A FIRST CONTRIBUTION BY THE UIS COMMISSION,
16th International Congress of Speleology, pp. 230–235, Brno (Czech Republic), July 21-28, 2013,
Parise M., 2013, Cavità naturali e antropiche_ indagini speleologiche,
XVI Convegno Nazionale ANISN (Associazione Nazionale degli Insegnanti di Scienze Naturali) "Innovazione didattica e scelte sostenibili per lo sviluppo del territorio", Bari, Locorotondo, 9-13 settembre 2013,
Campanella G., Parise M., Rizzi A., Sammarco M., Trocino A., 2013, CAVES IN SANDSTONE DEPOSITS OF THE SOUTHERN ITALIAN APENNINES,
16th International Congress of Speleology, pp. 320–325, Brno (Czech Republic), July 21-28, 2013,
Parise M., 2013, Caratteri carsici del Canale di Pirro,
Convegno "La Grave Rotolo nel Canale di Pirro", Monopoli, 15 novembre 2013,
Parise M., 2013, Artificial caves as a possible danger_ sinkholes and other effects at the surface,
Opera Ipogea 1 (2013): 95–102.,
Del Prete S., Parise M., 2013, AN OVERVIEW OF THE GEOLOGICAL AND MORPHOLOGICAL CONSTRAINTS IN THE EXCAVATION OF ARTIFICIAL CAVITIES,
16th International Congress of Speleology, pp. 236–241, Brno (Czech Republic), July 21-28, 2013,
MAURANO F., DEL VECCHIO U., LO MASTRO F., SANTO A. & PARISE M, 2013, Alburni, l’esplorazione speleologica infinita,
Montagne 360 (2013): 40–43.,
G. Vessia, M. Parise, G. Tromba, 2013, A strategy to address the task of seismic micro-zoning in landslide-prone areas,
Advances in geosciences (Print) 35 (2013): 23–35. doi_10.5194/adgeo-35-23-2013,
DOI: 10.5194%2Fadgeo-35-23-2013
MARGIOTTA S., NEGRI S., QUARTA T.A.M. & PARISE M., 2013, A multi-disciplinary approach combining geological, geomorphological and geophysical data for mapping the susceptibility to sinkholes,
Geophysical research abstracts 15 (2013): 8270–8270.,
SIVELLI M. & DE WAELE J. (EDS.), ANTONINI G., BELVEDERI G., BURRI E., DEL PRETE S., DEL VECCHIO U., EUSEBIO A., GALEAZZI C., ISCHIA M., LAROCCA F., LO MASTRO F., MARCHESI G., MAROTTA C., MAURANO F., MECCHIA G., MONTI A., PANICHI S., PANNUZZO G., PARISE M., PERISSINOTTO M., PICCINI L., SALVATORI F., SAURO F., SAURO U., TOGNINI P. & VATTANO M., 2013, A journey across speleological Italy,
Speleologia (Bologna) 68 (2013).,
Parise M., Vennari C., 2013, A CHRONOLOGICAL CATALOGUE OF SINKHOLES IN ITALY_ THE FIRST STEP TOWARD A REAL EVALUATION OF THE SINKHOLE HAZARD,
13th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst, pp. 383–392, Carlsbad (New Mexico, USA), May 6-10, 2013,
Pasuto A., Oi H., 2013, Valutazione della pericolosità e gestione del rischio idrogeologico_ esperienze in Italia e Giappone,
ESONDA 2013, Ferrara, 19 September, 2013,
Stefani M.; Mantovani M.; Mair V.; Marcato G.; Pasuto A.; Nossing L., 2013, The Ganderberg landslide (South Tyrol, Italy): Mitigation of residual risk by real-time monitoring,
Early warning, Instrumentation and Monitoring, pp. 531–535, 2013,
Abstract
The whole flank of Ganderberg western slope (3.75 km2) (lat. 46°51'12'', long. 11°10'15'') is involved ...
The whole flank of Ganderberg western slope (3.75 km2) (lat. 46°51'12'', long. 11°10'15'') is involved in a Deep Seated Gravitational Slope Deformation phenomenon. The upper part is characterized by several joint surfaces, with possible wedge failure mechanisms. In particular, the northern crown ridge is divided into three sectors with noticeably different indications of subsidence and displacement. The orientation of the joint planes and evidence of vertical movements of a distinct rock block allow a potential rock avalanche to be hypothesized (up to the volume of 4.5 x 105 m3). On the basis of historical archives analysis it was found that the same slope was involved in a rock avalanche event dating back to 1401. The landslide deposits created a 35 m deep lake, damming the Passer Torrent, creating the Passeirer Wildsee or Kummersee. Aim of the study is the evaluation of residual risk scenarios and its mitigation by means of monitoring and data interpretation using Saito and Fukuzono techniques.
Cortes V.J., Frigerio S., Schenato L., Pasuto A. & Sterlacchini S., 2013, Review of the current risk management strategies in Europe for hydro-meteorological hazards at protection and emergency level,
FLOODrisk 2012 - the 2nd European Conderence on FLOODrisk Management, pp. 971–980, Rotterdam, The Netherlands, 20-22 November 2012,
Abstract
A review of the current emergency response strategies at European level was carried out
from the ...
A review of the current emergency response strategies at European level was carried out
from the key conclusions and recommendations identified within past experiences of developed platform
for civil protection and emergency management. The review is focused on the recent research initiatives
funded by the European Community about methods and techniques for emergency response in case of
flooding and debris flow risks, mainly. The ultimate aim is to reduce the fragmentation of the research on
hydro-meteorological hazards so to possibly identify a best practice on disaster risk management. This
paper is organized as follows, first a brief overview on emergency response strategies is presented along
with an analysis of the challenges that arisen while implementing the following tools_ geo-information
and remote sensing, emergency plans, early warning and decision support systems. Then, conclusions
have been drawn.
Pasuto, Alessandro; Soldati, Mauro, 2013, Lateral Spreading,
Treatise on Geomorphology, pp. 239–248. San Diego, California_ Academic Press, 2013,
Abstract
The main conceptual and terminological issues related to lateral spreading as an extension of a ...
The main conceptual and terminological issues related to lateral spreading as an extension of a cohesive and fractured rock or soil mass over a softer underlying material are presented and accompanied by a brief outline of the state-of-the-art on the topic. Then the geomorphic features related to the two main types of spreading (rock spreading and soil spreading) are illustrated, with reference to the geological conditions in which they take place, as well as to their causes and evolution. Finally, some considerations on the hazard and planning implications are provided. © 2013 Elsevier Inc. All rights reserved.
Devoto S., Biolchi S., Bruschi V.M., Gonzalez-Diez M., Mantovani M., Pasuto A., Piacentini D., Schembri J.A., Soldati M., 2013, Landslides along the north-west coast of the Island of Malta,
Landslide Inventory and Susceptibility and Hazard Zoning, pp. 57–64, 2013,
Abstract
The paper shows the results of geomorphological and engineering-geological investigations carried out along the north-western ...
The paper shows the results of geomorphological and engineering-geological investigations carried out along the north-western coast of the Island of Malta, with special emphasis on landslides. Field surveys and aerial-photo interpretation allowed the recognition, identification and mapping of a series of landslides of different type and size,
some of which showing evidence of activity. Coastal instability in the studied area is deeply controlled by structural factors, such as tectonic and stratigraphic ones. The
research envisaged a multidisciplinary approach, which also included landslide monitoring in specific sites which were selected for detailed investigations, owing to the peculiarity of the instability processes occurring and for the related hazard and risk conditions. The paper outlines the research phases and the results achieved which proved to be fruitful thanks to the application of different methodologies for the study of coastal landslides. Particular attention has been paid to rock spreading phenomena, which are widespread along the northwestern coast of Malta due to the superimposition of limestones over clayey terrains.
Schenato L., Palmieri L., Autizi E., Gruca G., Iannuzzi D., Pasuto A., Galtarossa A., 2013, Interrogation of multiple ferrule-top-cantilever sensors for acoustic emission sensing,
Fifth European Workshop on Optical Fibre Sensors, Cracovia, 19-22 May 2013,
Abstract
A simple, yet effective, setup for the simultaneous interrogation of multiple ferrule-top-cantilever sensors for acoustic ...
A simple, yet effective, setup for the simultaneous interrogation of multiple ferrule-top-cantilever sensors for acoustic sensing is here presented and experimentally tested with two ferrule-top-cantilever sensors; results confirm the feasibility of the approach.
Devoto S., Forte E., Mantovani M., Mocnik A., Pasuto A., Piacentini D. , Soldati M., 2013, Integrated monitoring of lateral spreading phenomena along the north-west coast of the Island of Malta.,
Early warning, Instrumentation and Monitoring, 2013,
Abstract
Landslides, and especially lateral spreading, are responsible for the main landforms observable along the northwestern ...
Landslides, and especially lateral spreading, are responsible for the main landforms observable along the northwestern coast of the Island of Malta. A series of rock spreading
phenomena, and associated mass movements, have been recognised in this area and the most significant cases have been investigated by means of a multi-technical approach which envisaged geomorphological survey and mapping, geophysical analyses and monitoring of displacements. The aim of the study was to define whether rock spreading phenomena are active along the investigated coastal stretch and, possibly, to determine the rate of movement of the most relevant cases. In this framework, a multidisciplinary approach was used and different techniques were tested and applied on a specific site, which was selected for the presence of an extensive rock spread phenomenon which may induce hazard conditions. The site is located at Il-Prajjet (Anchor Bay), a narrow inlet where a tourist attraction is located. Research activities have been carried out at Il-Prajjet since 2006 when a GPS network of eight benchmarks was installed. This technique was chosen because it proved to be a powerful tool in the study of similar ground deformation in coastal and mountain areas, showing high accuracy and reliability. Once GPS monitoring had showed that rock spreading was active, further techniques were applied in order to achieve an in-depth knowledge of the instability processes occurring at Il-Prajjet. The paper illustrates the results so far achieved thanks to GPS monitoring, tape extensometer measurements, SAR interferometric analyses and GPR investigations.
Bossi, G., Frigerio S., Mantovani, M., Schenato L., Pasuto, A., Marcato, G., 2013, Hazard assessment of a potential rock avalanche in South Tyrol, Italy_ 3D modeling and risk scenarios,
Italian journal of engineering geology and environment (Testo stamp.) 2 (2013): 221–227. doi_10.4408/IJEGE.2013-06.B-19,
DOI: 10.4408%2FIJEGE.2013-06.B-19
Abstract
A large DSGDS (Deep-Seated Gravitational Slope Deformation) which extends on an area of 3.75 km2 ...
A large DSGDS (Deep-Seated Gravitational Slope Deformation) which extends on an area of 3.75 km2 affects the southwest flank of Mount Ganderberg some 40 km north of Bolzano. The gravitational sagging of the slope is generating a wide field of tension cracks in the crown area where a rock slab of about 800.000 m3 shows clear precursory signs of possible detachment. In 1401 a rock avalanche detaching from the same area dammed the Passer River thus creating a 35 m deep lake which through sequential breaching caused many casualties in the villages downstream. Using geomorphological survey and historical analysis it was possible to estimate the volume of the landslide deposit in 2 × 106 m3. In this study the historical event is back-analyzed using the 2D code DAN-W in order to select the proper soil parameters to use in the modelling of the present potential rock avalanche. Then a 3D modelling is carried out using DAN3D software to evaluate the run-out scenario and the shape of the natural dam. Owing to the relevant discharge of the Passer River, a 2 × 106 m3 lake might be quickly filled. This can cause the breaching and subsequent collapse of the landslide dam with great risk and potentially heavy damages for the downstream population.
Cortes V.J., Charrière M., Aye Z., Bossi G., Viero A., Frigerio S., Schenato L., Sterlacchini S., Bogaard T. & Pasuto A., 2013, First level inspection by trained-volunteers of torrent control structures in mountainous catchments_ towards a quality-evaluation of data collected,
EGU - European Geosciences Union, Vienna, Austria, 07-12 April 2013,
Abstract
Modern approaches for emergency management promote exchange of information between local authorities and
community aiming at ...
Modern approaches for emergency management promote exchange of information between local authorities and
community aiming at more appropriate and effective ways to manage hydro-meteorological risks1. In this framework,
risk communication should not only start during the build-up of the hazard, but also in pre-warning and
'peace' time and it contribute to better emergency preparedness. Lately, a rapid growth of interest emerges to enable
citizens to inspect hazard-related processes on their territory2. From the risk managers perspective, substantial
advantages of taking this citizen-based approach include (1) the opportunity to identify on a quick and 'relatively'
low cost basis one or more risk components at different geographical locations and (2) the ability to provide a
practical application for citizens interested in creating and communicating useful information toward establishing
a better understanding of their territory. From the citizens perspectives, it provides the opportunity to generate
benefit through increasing and encouraging interest for self-awareness as well as self-preparedness. However, the
use of citizen-based information also bring forth the need to train and establish standardized forms, guidelines and
tools, particularly if the data collected seek to be useful information for decision-making activities and emergency
management3.
In this research work, we address the question on the quality of data collected by volunteers for decision-making
activities. This in the framework of the civil protection organization of the Friuli-Venezia-Giulia (CP-FVG) and the
Italian study area of the CHANGES project, Municipality of Pontebba4. An experiment is carried out by analyzing
the results of a questionnaire form dealing with the inspection of the functional status of check dams and bridges
across streams. This form is filled by volunteers (in this case, citizens and university students), that register to a
web-portal with access by browser after a standardized training given by practitioners and scientists. During the
latter, the guidelines to fill the questionnaire, i.e. various conditions of hydraulic structures and the proposed criteria
for quality evaluation5, will be disseminated to the volunteers. The quality of the data are analyzed on the basis of
these guidelines in order to determine if the citizens-based data collection approach can be used to prioritize the
structures to be inspected by the risk managers.
Mantovani M., Devoto S., Forte E., Mocnik A., Pasuto A., Piacentini D., Soldati M., 2013, A multidisciplinary approach for lateral spreading investigation in the north-western coast of Malta.,
Landslides (Berl., Print) 10 (2013): 611–622.,
Abstract
Landslides are widespread along the north-western coast of the Island of Malta and are strictly ...
Landslides are widespread along the north-western coast of the Island of Malta and are strictly linked to the structural setting. Exemplary cases of rock spreading and block sliding phenomena characterise this stretch of coast. They are favoured by the overposition of two different geological units widely outcropping there, the Blue Clay Formation and the Upper Coralline Limestone Formation. The latter forms a wide plateau, bordered by vertical cliffs. At the foot of the cliffs, clayey terrains crop out and develop gentle slopes covered by large blocks detached and moved by rock spreading and block sliding phenomena. These mass movements are favoured by the fragile behaviour of limestones, which cap clays, otherwise characterised by visco-plastic properties. In order to investigate the kinematics and the evolution of these types of
coastal landslides, a multidisciplinary and multitechnical approach was applied on a study site, named Il-Prajjet, which provides a spectacular case of rock spreading evolving into block sliding. This paper illustrates the results achieved by means of different engineering geological and geophysical techniques allied with traditional detailed geomorphological survey and mapping. In particular, the surface displacements of the landslides were determined using long-term GPS observations, acquired approximately every 6 months, over a 4.5-year period. A network of GPS benchmarks were distributed on the edge of a limestone plateau affected by rock spreading and on a series of displaced blocks making up a large block slide, finally enabling the definition of the state of activity and the rates of movement to be performed. In addition, the results deriving from two continuous fissurimeters more recently installed at the edge of two persistent joints over the block sliding area are outlined, with reference to the correlation between variations of crack apertures and precipitation input. In order to identify main structural discontinuities and to reconstruct variability of underground surface contact between clays and overlying limestones, Resistivity Tomography profiles and GPR investigations were carried out. Finally, the results obtained by combining the outputs of geophysical surveys and different field monitoring activities can be considered a first step on which numerical models can be developed and validated, in order to assess landslide hazard and risk of this stretch of Maltese coastline.
Rampini Anna, Bordogna Gloria, Carrara Paola, Pepe Monica, Antoninetti Massimo, Mondini Alessandro and Reichenbach Paola, 2013, Modelling Landslides Susceptibility by Fuzzy Emerging Patterns,
Landslide Science and Practice, edited by Claudio Margottini, Paolo Canuti and Kyoji Sassa, pp. 363–370, 2013,
Abstract
This contribution proposes an approach to model regional landslide susceptibility, based on a supervised learning ...
This contribution proposes an approach to model regional landslide susceptibility, based on a supervised learning technique that mines fuzzy emerging patterns on a set of classified data. In our approach the training set contains positive and negative examples of areas, (i.e., slope units), affected or not affected by landslides. The fuzzy emerging patterns characterise the positive and the negative areas exploiting their ability to discriminate between the two classes. The approach consists first, in inducing a set of fuzzy rules, and then in reducing them by retaining those that identify fuzzy emerging patterns for the given training set. The fuzzy rules define the main characteristics of the slope units that are affected or not affected by landslides and are used to classify other slope units in the same region. The classification technique provides an estimate of the hesitation of the decision process, which is a measure of its ability to uniquely associate a slope unit to the susceptible or not susceptible class. In the paper we describe the approach and discuss the preliminary results.
Hussin H., Zumpano V., Sterlacchini S., Reichenbach P., Balteanu D., Micu M., Bordogna G. & Cugini M., 2013, Comparing the predictive capability of landslide susceptibility models in three different study areas using the Weights of Evidence technique,
EGU - European Geosciences Union, Vienna, Austria, 07-12 April 2013,
Abstract
Landslide susceptibility models are a key component for quantitative hazard assessments at medium to regional
scales. ...
Landslide susceptibility models are a key component for quantitative hazard assessments at medium to regional
scales. The analysis and the evaluation of susceptibility models prepared for different test sites have been used
to verify their flexibility and effectiveness. By comparing models in areas with different physio-graphic, climatic,
and geological settings, we have tried to determine the influence of these regional differences on the predictive
capability of landslide susceptibility modeling. In this study we used the weights-of-evidence statistical technique,
which had been successfully applied in Valtellina di Tirano in Italy for predicting shallow landslide induced debris
flow source areas. The results related to the accountability and reliability of the susceptibility models, the combination
of conditional factors, the model success rate curves (SRCs), the prediction rate curves (PRCs) and the area
under the curves (AUCs) were compared with results from the Fella River study area in the Italian Alps and the
Buzau County case study in the Romanian Carpathians, which are also affected by more translational/rotational
landslide types. The influence of methods to represent landslide inventories (the point density of source areas and
points versus polygons) on the susceptibility modeling was also studied. Different models for each test site have
been prepared by combining the available morphometric and geo-environmental factors. Among the morphometric
derived conditional landslide factors used were aspect, elevation, flow accumulation, plan and profile curvature
and slope; while the geo-environmental factors used were distance to faults, land-cover and geology. The degree of
spatial agreement among different patterns of landslide susceptibility maps have been evaluated with an important
emphasis on the comparison of different combinations of conditional factors that result in the best prediction of
landslide susceptibility for each case study area.
Mauro Cardinali, Francesco Bucci, Michele Santangelo, Federica Fiorucci, Paola Reichenbach, Francesca Ardizzone, 2013, Carta inventario geomorfologica delle frane, Monti Peloritani, Messina,
2013,
Abstract
Carta inventario geomorfologica delle frane ...
Carta inventario geomorfologica delle frane
Bacaro G., Ricotta C., Marignani M., Torri D., and Chiarucci A., 2013, Using Shannon’s recursivity to summarize forest structural diversity,,
Forests, trees and livelihoods (2013). doi_10.1007/s00267-013-0109-6.,
DOI: 10.1007%2Fs00267-013-0109-6.
Rossi M. (1), Torri D. (1), Fiorucci F. (1), 2013, Rapporto sulla stima dei volumi mobilizzati dai fenomeni di erosione lungo la SS 3 “Flaminia” a seguito dell’incendio dell’estate 2012,
2013,
Abstract
La Regione Umbria con DGR n. 1175 del 01/10/2012 ha costituito un gruppo di lavoro ...
La Regione Umbria con DGR n. 1175 del 01/10/2012 ha costituito un gruppo di lavoro finalizzato alla valutazione degli effetti degli incendi boschivi sulla suscettibilità da frana occorsi lungo la SS 3 "Flaminia" nei pressi di Molinaccio (TR) nei giorni 20-23 luglio 2012 e lungo la SP 418 "Spoletina" in località Acquasparta il 19 luglio 2012. Il dott. Dino Torri e il dott. Mauro Rossi dell'Istituto di Ricerca per la Protezione Idrogeologica del Consiglio Nazionale delle Ricerche (IRPI CNR) sono stati individuati dalla delibera quali esperti di rischio idrogeologico da frana.
In tale rapporto sono riportati i risultati della stima dei volumi di materiale mobilizzato dai processi di erosione canalizzata innescatisi nell'area incendiata lungo la SS 3 "Flaminia" km 104+900 nei pressi di Molinaccio (TR).
La conoscenza delle lunghezze dei fenomeni di erosione canalizzata è un elemento fondamentale per la stima dei loro volumi.
Nel presente rapporto sono stati identificati diversi scenari corrispondenti a diversi processi di erosione con diverse lunghezze di erosione incanalata, basati sia su osservazioni dirette in campagna che su inferenze di tipo geomorfologico (Capitolo 2).
I volumi sono stati stimati utilizzando due metodi differenti. Nel primo caso sono state utilizzate alcune relazioni empiriche definite in letteratura che legano il volume dei processi di erosione canalizzata alla loro lunghezza (Capitolo 3). Tali relazioni sono state definite per differenti zone e in diverse condizioni ambientali. Nel secondo caso si è provveduto ad una stima dei volumi considerando la lunghezza dei processi di erosione e la loro sezione media (Capitolo 4).
Mauro Rossi(1,2), Dino Torri(1), Giovanni Bacaro(1), Alessandro Cesare Mondini(1), Federica Fiorucci(1), Ivan Marchesini (1), 2013, Gully-head contribution to sediment production and land-use,
Florisa Melone Memorial Conference, Assisi, Italia, 10-11/10/2013,
Abstract
Gully-Head threshold equations can be used in scenario analysis to predict/assess the potential impact of ...
Gully-Head threshold equations can be used in scenario analysis to predict/assess the potential impact of topographic and land use changes on soil erosion and sediment production on slopes.
The changes in land use and vegetation covers cause shift of the gully head locations, corresponding to different pattern of erosion and sedimentation. These changes can be due to climatic or to land use planning variations. For instance one possible effect of climate warming is the increase of the susceptibility to forest fires.
Here we apply the LANDPLANER (LANDscape, Plants, LANdslides and ERosion) model to simulate the effect of a forest fire occurred in Umbria, Italy, in 2012 on gully erosion. Pre and post fire conditions are analyzed. The results are useful to understand what happen after the fire, how we can plan after-fire interventions and to estimate possible sediment contributions to the local river network. The effects of some preventive actions are examined and compared with field survey data.
torri d., santi e., bacaro g., 2013, FIRESENSE Deliverable No_ D17,
2013,
Mauro Rossi (1,2), Dino Torri (1), Giovanni Bacaro (1), Alessandro Cesare Mondini (1), Paola Reichenbach (1), Federica Fiorucci (1), Ivan Marchesini (1), 2013, Evaluating the impact of fires on slope instability processes_ a case study in Central Italy,
AGU 2013 Fall Meeting, San Francisco, USA, 9-13 December 2013,
Abstract
Fires can change significantly the characteristics of slopes. Their effect on vegetation, soil properties, and ...
Fires can change significantly the characteristics of slopes. Their effect on vegetation, soil properties, and fauna can influence slope instability processes, including channeled erosion and mass movements. Even if in the literature attempts to estimate these effects were made using mostly empirical approaches, evaluating quantitatively the impact of fires on slope instability processes remain challenging. In a small basin in Central Italy, where an intense arson occurred in July 2012, we estimated the effects of fire on the hazard posed by different type of instability processes. For the purpose we modelled separately channeled erosion phenomena and rock falls, for which a significant impact of fires was expected. For the former we exploited the LANDPLANER (LANDscape, Plants, LANdslides and ERosion) model, which is able to simulate the hydrological response of a slope, and their effect on instability processes, under human-induced or natural changing scenarios, including climatic, land use, and slope morphology changes. For the latter we exploited two different modeling approaches considering directly (Rockyfor3D model) or indirectly (STONE model) the effect of the vegetation on the movement of rock masses along the slope. All the model simulations were repeated considering land use scenarios before and after the fire. Those were derived through field surveys and though the supervised classification of high resolution satellite images acquired in the study area before and after the fire. The analysis of the effect of the fire on channeled phenomena included the estimation of (i) the overland flow on the basin, (ii) the location of the gully head, (iii) the channel eroded volume, and (iii) the change of the connectivity inside the basin. The analysis of the effect of the fire on rock fall phenomena included the estimation of (i) the increase of rock fall source areas, (ii) the increase of distances travelled by rock masses along the slopes, and (iii) the spatial distribution of the fallen rock blocks. In all models and scenarios we considered the effect of roads. Results showed a significant increase of the susceptibility to slope instability processes after the fire, mainly due to (i) the formation of hydro repellent soil horizons, (ii) the removal of the litter, (iii) the burning of vegetation.
Rossi M. (1), Torri D. (1), Diele F. (2), Marangi C. (2), Ragni S. (2), Blonda P. (3), Nagendra H. (4) with contribution of Marchesini I. (1), Santi E. (1), 2013, Deliverable No_ D6.5 “Report on habitat state and ecosystem status assessment”,
2013,
Rossi M. (1), Torri D. (1), Santi E. (1), Bacaro G. (1), Marchesini I. (1), 2013, BIO_SOS Modelling Activities_ Modelling Runoff-Sediment Connectivity,
GI_Forum 2013_ Creating the GISociety - Conference Proceedings, Salzburg, Austria, 2-5 July 2013,
Abstract
Pressures and threats to an ecosystem and its function need to be predicted and quantified_ ...
Pressures and threats to an ecosystem and its function need to be predicted and quantified_ only knowing them , actions can be taken to avoid them. This is particularly true when the pressures are created by human actions and decisions. Part of these pressures causes changes in a) the water (and sediment) regime, b) the input of water and sediment into given parts of an ecosystem and c) water availability. These impacts can be estimated by means of a simple runoff-erosion model, easy to use and to understand and linked to a spatially distributed description of the landscape where the ecosystem to protect and conserve is located.
ROSSI M. (1,2), TORRI D. (1), SANTI E. (1), 2013, Bias in topographic thresholds for gully heads,
6th International Symposium on Gully Erosion in a changing world (6th ISGE), Iasi, Romania, 06-12 May 2013,
Abstract
The topographic threshold for overland flow gully head should be re-examined because of the effect ...
The topographic threshold for overland flow gully head should be re-examined because of the effect of a basic assumption in deriving the threshold equation. The assumption that the gully head catchment (GHC) area is a synonym for runoff brings in several problems. These cause errors when calculating the threshold equation parameters (i.e. exponent and coefficient of the power equation linking critical slope gradient nearby the gully head to the GHC area). The assumption implies that every part of the GHC is connected by runoff to the outlet at the moment of peak discharge. Larger areas require larger concentration times which require a longer duration time of the rainfall. This makes less frequent (i.e. probable to observe) the occurrence of a rainfall intensity of the tight duration to allow a total connectivity inside the GHC.
Also the vegetation type and land use (characterized by a type of vegetation) have an effect on the probability that the assumption is verified by the gully generative event. In order to show it, a simple distributed model have been developed in GRASS-R environments and a series of simulations were run showing when the conditions for gully erosion are actually verified. The hydrological part was developed based on the CN method approach, including the simulation of peak discharge with a few modification/adaptation to the spatially distributed environment. A small routine was added to simulate concentrated flow erosion and condition for gully head formation. Then a set of simulations were run using a series of daily rainfall amount. Results show a clear effect of the land use and vegetation on gully head position in the simulated landscapes. Using vegetation-induced modification of soil shear strength with root density and considering the effect of hydraulic roughness on overland flow mean velocity, even discontinuous gully channel were produced.
Simulations clearly show that while small watersheds often contribute to runoff from every pixel, only rarely large GHC areas are contributing to the gully head. Substantially, it is as if the contributing GHC area increases only slightly with the topographic GHC area and stops increasing relatively soon. When the GHC topographic area is used as a surrogate for the GHC contributing area a bias is introduced into the trend which causes the apparent exponent to be lower than the real one
Terranova Oreste; Gariano Stefano Luigi, 2013, Analysis of heavy rainstorms in the Mediterranean climate area,
Geophysical research abstracts (Online) 14 (2013): 9798–9798.,
Bonamini M., Di MaggIo C., Lollino P., Madonia G., Parise M., Vattano M., 2013, Sprofondamenti di origine antropica nell’area di Marsala (Sicilia occidentale) analizzati mediante rilievi in sito e analisi numerica dei processi di instabilità nelle cave sotterranee,
Memorie descrittive della carta geologica d'Italia 93 (2013): 105–120.,
BONAMINI M., DI MAGGIO C., LOLLINO P., MADONIA G., PARISE M. & VATTANO M., 2013, Sprofondamenti di origine antropica nell’area di Marsala (Sicilia occidentale) analizzati mediante rilievi in sito e analisi numerica dei processi di instabilità nelle cave sotterranee,
Memorie descrittive della carta geologica d'Italia 93 (2013): 105–120.,
