Tarolli P., Cavalli M., 2013, Geographic Information Systems (GIS) and Natural Hazards,
Encyclopedia of Natural Hazards, pp. 378–385. New York_ Springer Heidelberg Dordrecht London New York, 2013,
Abstract
Geographic Information Systems (GIS). GIS is a computer-based information system designed for capturing, storing, analyzing, ...
Geographic Information Systems (GIS). GIS is a computer-based information system designed for capturing, storing, analyzing, managing, and displaying spatial data representing human and natural phenomena from the real world. It may include application to remote sensing, land surveying, mathematics, and geography.
Natural Hazard. Any natural phenomenon that poses a threat to human life or properties.
Picco L., Mao L., Cavalli M., Buzzi E., Rainato R., Lenzi M.A., 2013, Evaluating short-term morphological changes in a gravel-bed river using Terrestrial Laser Scanner,
Geomorphology (Amst.) 201 (2013): 323–334. doi_10.1016/j.geomorph.2013.07.007,
DOI: 10.1016%2Fj.geomorph.2013.07.007
Abstract
Braided rivers are dynamic and complex environments shaped by the balance of the flow and ...
Braided rivers are dynamic and complex environments shaped by the balance of the flow and sediment regimes and by the influence of the riparian vegetation and disturbances such as floods. In particular, the balance between sediment supply and transport capacity can determine the morphological evolution of a river. For instance, aggrading and widening trends are distinctive of reaches where sediment supply is higher than transport capacity. In contrast, incising and narrowing tendencies are dominant. The aim of the present study is to analyze the short-term morphological dynamics and the processes of erosion and sediment deposition along a small reach of a relatively unimpacted gravel-bed braided river (Tagliamento River, northeast Italy) using a terrestrial laser scanner (TLS). The study area is around 23. ha and has been surveyed before after two periods with relevant flood events, two of which were higher than the bankfull level and occurred between September 2010 and September 2011. The very high point clouds density allowed us to derive three high resolution digital elevation models (DEMs) with 0.125. ×. 0.125. m pixel size. Scan data cloud merging was achieved with an overall high degree of accuracy and resolution (subcentimeter). Topographic data were more accurate for exposed surfaces than those collected in wet areas. A detailed net of dGPS control points allowed us to verify the high quality of the DEMs derived from the surveys (RMSE of about 5. cm). Two DEMs of difference (DoD) were computed, revealing different and consistent episodes of erosion and deposition within the analyzed area, and changes in morphology of channel and bars could also be detected, such as bar edge accretion and bank erosion demonstrating a strong dynamicity of the Tagliamento River. Moreover, a very detailed estimation of the surface roughness in the study area has been carried out, permitting a large-scale analysis of the roughness values distribution. The results of the analysis on the TLS collected data show that along a river with a high natural character (i.e., Tagliamento River), the dynamic processes are also common during low magnitude events.
Frigerio, Simone; Schenato, Luca; Mantovani, Matteo; Bossi, Giulia; Marcato, Gianluca; Cavalli, Marco; Pasuto, Alessandro, 2013, Automatic and continuous landslide monitoring_ the Rotolon Web-based platform,
EGU General Assembly 2013, Vienna, Austria, 7-12 April, 2013,
Abstract
Mount Rotolon (Eastern Italian Alps) is affected by a complex landslide that, since 1985, is ...
Mount Rotolon (Eastern Italian Alps) is affected by a complex landslide that, since 1985, is threatening the nearby village of Recoaro Terme. The first written proof of a landslide occurrence dated back to 1798. After the last re-activation on November 2010 (637 mm of intense rainfall recorded in the 12 days prior the event), a mass of approximately 320.000 m3 detached from the south flank of Mount Rotolon and evolved into a fast debris flow that ran for about 3 km along the stream bed. A real-time monitoring system was required to detect early indication of rapid movements, potentially saving lives and property. A web-based platform for automatic and continuous monitoring was designed as a first step in the implementation of an early-warning system. Measurements collected by the automated geotechnical and topographic instrumentation, deployed over the landslide body, are gathered in a central box station. After the calibration process, they are transmitted by web services on a local server, where graphs, maps, reports and alert announcement are automatically generated and updated. All the processed information are available by web browser with different access rights. The web environment provides the following advantages_ 1) data is collected from different data sources and matched on a single server-side frame 2) a remote user-interface allows regular technical maintenance and direct access to the instruments 3) data management system is synchronized and automatically tested 4) a graphical user interface on browser provides a user-friendly tool for decision-makers to interact with a system continuously updated. On this site two monitoring systems are actually on course_ 1) GB-InSAR radar interferometer (University of Florence - Department of Earth Science) and 2) Automated Total Station (ATS) combined with extensometers network in a Web-based solution (CNR-IRPI Padova). This work deals with details on methodology, services and techniques adopted for the second monitoring solution. The activity directly interfaces with local Civil Protection agency, Regional Geological Service and local authorities with integrated roles and aims.
Schenato L., Palmieri L., Autizi E., Calzavara F., Vianello L., Teza G., Marcato G., Sassi R., Pasuto A., Galgaro A., Galtarossa A., 2013, Rockfall precursor detection based on rock fracturing monitoring by means of optical fibre sensors,
International journal of sustainable materials and structural systems (Online) 1 (2013): 123–141. doi_10.1504/IJSMSS.2013.056482,
DOI: 10.1504%2FIJSMSS.2013.056482
Abstract
The monitoring of the acoustic emissions (AEs) due to rock fracturing allows the detection of ...
The monitoring of the acoustic emissions (AEs) due to rock fracturing allows the detection of the rockfall precursor signals, leading to a strong improvement of the real time assessment of the induced risk. A network of piezoelectric sensors (PZTs) provides reliable AE data, as testified by a series of applications in non-destructive testing, but PZTs are strongly affected
by lightings and electromagnetic interference. In order to avoid such PZT drawbacks and limitations and therefore to allow the rock fracturing monitoring in unstable slopes, two FOS architectures (referred to as fibre coil sensor and ferrule top cantilever) have been recently proposed in previous works from the same authors. In this paper, the two sensors are tested in a more realistic
scenario, by monitoring AE in a rock block in which crack is induced by highly expansive mortar; complementary activities, mainly aimed at the recognition of the type of expected signals and optimisation of the sensor array in the framework of the monitoring system, are also described here.
Garcia C., Frigerio F., Daehne A., Corsini A., Sterlacchini S., 2013, The Relevance of Early-Warning Systems and Evacuation Plans for Risk Management,
Mountain Risks_ from prediction to Management and Governance, edited by van Asch T., Corominas J., Greiving S., Malet J.P. & Sterlacchini S., pp. 341–364. DORDRECHT_ SPRINGER, 2013,
Abstract
Early-Warning Systems (EWS) include the provision of timely and effective information, through identified institutions, that ...
Early-Warning Systems (EWS) include the provision of timely and effective information, through identified institutions, that allows individuals exposed to hazard to take action in order to avoid or reduce risk and prepare for effective response. EWS are extensive frameworks that integrate different components of risk governance and disaster risk reduction policies with the main purpose of minimizing loss of life and reducing the economic and social impact of a threatening event on the physical assets and populations exposed to hazards. This section describes and analyzes different types of EWS with the aim to connect scientific advances in hazard and risk assessment with management (emergency preparedness and response) strategies and practical demands of stakeholders and end-users. Besides a structural approach, an Integrated People-Centred EWS (IEWS) is also presented. The system is mainly based on prevention as a key element for disaster risk reduction and aims not only to increase the level of awareness and preparedness of the community and decrease its vulnerability, but also to strengthen institutional collaboration, in particular at a local level, in order to assure sustainability of the efforts in the long term and to strength the risk governance process. In this way, the whole disaster cycle can be covered, trying to apply the most advanced technology available and also making the solutions easier to use by people not accustomed to manage these techniques in their daily tasks.
Cavalli M, Trevisani S, Goldin B, Mion E, Crema S, Valentinotti R, 2013, Semi-automatic derivation of channel network from a high-resolution DTM_ the example of an Italian alpine region,
European Journal of Remote Sensing 46 (2013): 152–174. doi_10.5721/EuJRS20134609,
DOI: 10.5721%2FEuJRS20134609
Abstract
High-resolution digital terrain models (HR-DTMs) of regional coverage open interesting scenarios for the analysis of ...
High-resolution digital terrain models (HR-DTMs) of regional coverage open interesting scenarios for the analysis of landscape, including derivation and analysis of channel network. In this study, we present the derivation of the channel network from a HR-DTM for the Autonomous Province of Trento. A preliminary automatic extraction of the raw channel network was conducted using a curvature-based algorithm applied to a 4 m resolution DTM derived from an airborne LiDAR survey carried out in 2006. The raw channel network automatically extracted from the HR-DTM underwent a supervised control to check the spatial pattern of the hydrographic network. The supervised control was carried out by means of different informative layers (i.e. geomorphometric indexes, orthophoto imagery and technical cartography) resulting in an accurate and fine-scale channel network.
Tarolli P, Cavalli M, 2013, Introduction to the special issue_ “High resolution topography, quantitative analysis and geomorphological mapping”,
High resolution topography, quantitative analysis and geomorphological mapping, pp. 60–64, 2013,
Abstract
This special issue collects papers regarding the use of Digital Terrain Models (DTMs) derived by ...
This special issue collects papers regarding the use of Digital Terrain Models (DTMs) derived by different remote sensing technologies for the analysis of the Earth surface. The idea for this special issue arose from a session on "L'informazione topografica ad alta risoluzione per l'analisi dei processi superficiali" convened by the proponents during the 8th edition of the Italian Forum of Earth Sciences, Geoitalia 2011, held in Torino, Italy. The session, consisting into two oral and one poster blocks, attracted 26 abstracts from different Italian contexts and other Countries, providing an opportunity to analyze different case studies and processes, with different approaches and topographic data.
Deganutti A.M., Tecca P.R., 2013, The case study of Cancia (Dolomites, Italy), a mountain village threatened by a debris flow,
The Second World Landslide Forum, pp. 329–333, Roma, 3-9 October 2011,
Abstract
The village of Cancia, close to Cortina d'Ampezzo (Italian Dolomites), has been many
times hit by ...
The village of Cancia, close to Cortina d'Ampezzo (Italian Dolomites), has been many
times hit by destructive debris flows that caused deaths among dwelling people and severe
damage to houses and roads; the most recent of these disastrous events happened in July
2009 and caused the death of two people. This study considers the cases of the most
calamitous past debris-flow events_ the morphological settings of the initiation area are
illustrated, along with an analysis of the processes that led to the formation of this
dangerous phenomenon. In particular the critical interaction between geological and
anthropic systems are examined showing the hazardous effects of the realization of a
tourist development in the area. A critical review of the countermeasures so far proposed
concludes the study.
Devoto S.; Biolchi S.; Bruschi V.M.; Furlani S.; Mantovani M.; Piacentini D.; Pasuto A.; Soldati M., 2012, Geomorphological map of the NW Coast of the Island of Malta (Mediterranean Sea),
Journal of maps 8 (2012): 33–40. doi_10.1080/17445647.2012.668425,
DOI: 10.1080%2F17445647.2012.668425
Abstract
This paper presents the results of geomorphological investigations carried along the north-western coast of the ...
This paper presents the results of geomorphological investigations carried along the north-western coast of the Island of Malta. Field surveys, accompanied by aerial photo-interpretation, have led to the production of a geomorphological map at 1_7500 scale which outlines the main processes and related landforms. The latter are the result of the complex interplay of structural, gravitational, coastal and karst processes. Particular attention was devoted to the recognition, identification and mapping of landslides which affect large coastal sectors of the study area, locally giving rise to hazardous conditions. © 2012 Stefano Devoto, Sara Biolchi, Viola M. Bruschi, Stefano Furlani, Matteo Mantovani, Daniela Piacentini, Alessandro Pasuto and Mauro Soldati.
Cavalli M, Trevisani S, Fait S, Valentinotti R, Goldin B, Mion E, 2012, Semi-automatic derivation of hydrographic network – Impacts of human activities on hydrographic network,
Interpraevent 2012, pp. 74–75, Grenoble, 23-26 aprile 2012,
Abstract
The mapping of the channel network plays a fundamental role in manifold landscape management
issues, such ...
The mapping of the channel network plays a fundamental role in manifold landscape management
issues, such as geo-hydrological risk analysis, legal matters related to land use, technical cartography
and water resources management.
Human activities in mountain regions results in a wide variety of environmental impacts. Human
activities that influence runoff generation and drainage pattern have reflections in the context of
hydro-geological hazard and water resources management. In some cases, channel network has been
modified for drainage and irrigation purposes, in other the alteration of drainage patterns is due to the
presence of man-made features, such as roads and new urbanized areas. The last 40 years have seen
relevant changes in land use in mountain regions, with an important increase of urbanized areas and
road network, and consequent modifications of the hydrographic network. Accordingly, an up-to-date
detailed recognition of the channel network is needed for landscape management purposes.
The availability of high-resolution digital terrain models (HR-DTMs) of regional coverage opens
interesting prospects for the analysis and the definition of the channel network. These terrain models
offer an unprecedented capability to interpret surface morphology and the related geomorphic and
hydrological processes. Moreover, the availability of regional HR-DTMs is increasing, thanks to
technological developments and decreasing costs of data acquisition and processing.
In this study, we present our experience in the derivation of channel network from regional HR-DTM
for an alpine region (Autonomous Province of Trento, Northern Italy), covering an area of 6500 km2.
The derivation of the channel network is conducted via a geomorphometric approach. Moreover, we
analyze the interaction between human activities and the channel network by comparing the channel
network derived from the HR-DTM with field evidences collected during extensive field surveys.
Marcato, G.; Mantovani, M.; Pasuto, A.; Zabuski, L.; Borgatti, L., 2012, Monitoring, numerical modelling and hazard mitigation of the Moscardo landslide (Eastern Italian Alps),
Engineering geology 128 (2012): 95–107. doi_10.1016/j.enggeo.2011.09.014,
DOI: 10.1016%2Fj.enggeo.2011.09.014
Abstract
The Moscardo Torrent basin (Eastern Italian Alps) is a high-risk site, since a large roto-translational ...
The Moscardo Torrent basin (Eastern Italian Alps) is a high-risk site, since a large roto-translational landslide might dam the torrent, with the consequence of increasing the possibility of large debris flow events, creating a threat for the infrastructures and the socio-economic activities of the villages that dot the valley below. The landslide, whose volume is estimated 2millionm 3, has been monitored since 2006 with inclinometers, electric piezometers and a GPS network. The velocity, along the entire body of the landslide, averages 1.0-1.5cm per month. The shear surface develops at depths varying from 9 to 10m to 55-62m, while the groundwater table is almost constant throughout the year, despite a cumulative rainfall of the area that usually reaches 2000mm/year. The movements were simulated in a numerical model, in order to estimate the stabilization effect obtained by different types of possible countermeasures. The simulation was carried out using FLAC 2D, with creep modelling. Visco-elasto-plastic model of the medium in the sliding zone was assumed, allowing to determine the relation between time and displacement. A 10-year displacement trend, starting from the initial situation of 2006 was simulated. Moreover, seismic conditions were taken into consideration with a quasi-static approach, by applying a horizontal acceleration. The numerical model was built and validated on the basis of the data retrieved from geological investigations, as well as from inclinometric and GPS measurements. The results show that an accurate and well-planned multidisciplinary approach can help the decision makers in the choice of the most effective engineering solution for the mitigation of landslide hazard and risk.
Picco L.; Mao L.; Cavalli M.; Buzzi E.; Rigon E.; Moretto J.; Delai F.; Ravazzolo D.; Lenzi Ma.L., 2012, Using a Terrestrial Laser Scanner to assess the morphological dynamics of a gravel-bed river,
Symposium on Erosion and Sediment Yields in the Changing Environment, pp. 428–437, Chengdu (Cina), 11-15 Ottobre 2012,
Abstract
Braided rivers are dynamic and complex environments shaped by the balance of the flow, sediment
regimes ...
Braided rivers are dynamic and complex environments shaped by the balance of the flow, sediment
regimes and the influence of the riparian vegetation. The balance between sediment supply and transport
capacity determines the morphological evolution of a river. The aim of the study is to analyse the short-term
morphological dynamics and the processes of erosion and deposition along a sub-reach of a low impacted
gravel-bed braided river (the Tagliamento River, Italy) using a Terrestrial Laser Scanner (TLS). The device used
is a pulsed TLS able to collect up to 50 000 points per second at a spatial resolution up to one point per mm2.
The study area is around 23 ha and has been surveyed before and after significant floods of recurrence interval
approx. 15 years and 12 years. The differences of the two DEMs (DoD) computed revealed consistent episodes
of erosion and deposition within the analysed area, showing a strong dynamic of the Tagliamento River.
Palmieri L., Galtarossa A., Schenato L., Guglielmucci M., 2012, Distributed fiber optic sensor for intense magnetic field mapping,
XIX Riunione Nazionale di Elettromagnetismo, Rome (IT), 10-14/09/2012,
Abstract
We describe a novel distributed fiber optic sensor, which is able to map both strength ...
We describe a novel distributed fiber optic sensor, which is able to map both strength and orientation of intense static magnetic fields in the area spanned by the fiber. The sensor is based on Faraday rotation and on polarization analysis of the field backscattered by the fiber due to Rayleigh scattering. The small Verdet constant of standard silica fibers makes the proposed technique most suited to
intense magnetic fields.
MANTOVANI M; SCHERNECK H-G, 2012, Observation of Crustal Deformation around the Pärvie Postglacial Fault, Lapland, Sweden, using InSAR techniques,
EGU General Assembly 2012, Vienna, 7-12/04/2012,
Scherneck, H.-G., Mantovani, Lund, B., 2012, Contemporary Surface Deformation in the Pärvie End-Glacial Fault Region, Lapland, Sweden,
ILP (International Lithosphere Programme) DynaQlim Workshop, Bochum, September 2012,
O. Payrastre, E. Gaume, P. Javelle, B. Janet, P. Fourmigué, Ph. Lefort, A. Martin, B. Boudevillain, P. Brunet, G. Delrieu, L. Marchi, Y. Aubert, E. Dautrey, L. Durand, M. Lang, L. Boissier, J. Douvinet, C. Martin, I. Ruin, TTO2-D Team HyMeX, 2012, Analyse hydrologique de la catastrophe du 15 juin 2010 dans la région de Draguignan (Var, France),
Congrès SHF : «Evènements extrêmes fluviaux et maritimes», Paris, 1-2/02/2012,
Abstract
Suite à la crue exceptionnelle qui s'est produite le 15 juin 2010 dans la région ...
Suite à la crue exceptionnelle qui s'est produite le 15 juin 2010 dans la région de Draguignan (Var), plusieurs équipes
de chercheurs et d'ingénieurs sont intervenues sur le terrain afin de documenter et de caractériser cet événement, en
proposant notamment des estimations des débits de pointe sur le cours principal de l'Argens ainsi que l'ensemble des
affluents touchés. Des informations sur la chronologie des crues ont également été obtenues auprès de témoins
oculaires. Un travail de coordination et d'échanges entre ces équipes a été organisé par le SCHAPI et la DREAL
PACA, et a permis de confronter et de mettre en cohérence les résultats obtenus, et d'engager une discussion sur les
périodes de retour de la crue. Cette comparaison a révélé que malgré les différentes sources possibles d'erreurs
d'estimation, les valeurs de débits proposées par les différentes équipes restaient globalement assez proches. Cette
première étape a permis de cartographier les débits sur la base d'une quarantaine d'estimations au total. La
répartition spatiale obtenue apparaît, de premier abord, cohérente avec l'estimation des cumuls pluviométriques
fournie par les lames d'eau radar. L'analyse hydrologique de l'événement a été complétée en comparant les débits
estimés à des hydrogrammes simulés à l'aide d'un modèle pluie-débit simple. Ces résultats mettent en évidence une
grande disparité des comportements hydrologiques des affluents de l'Argens. La Nartuby se distingue notablement avec
une réponse hydrologique très progressive et atténuée ce qui peut être attribué à l'effet du karst très présent sur ce
bassin. Enfin, le travail sur les périodes de retour a permis d'identifier les secteurs pour lesquels la crue a dépassé un
niveau centennal.
G. Bossi, V. Maier, M. Mantovani, G. Marcato, L. Nossing, A. Pasuto, M. Stefani, 2012, The Ganderberg landlside (South Tyrol Italy): residual hazard assessment and risk scenarios,
11TH INTERNATIONAL AND 2ND NORTH AMERICAN SYMPHOSIUM ON LANDSLIDE AND ENGINEERED SLOPES, BANFF, CANADA, 3-8 JUNE 2012,
Cortes, V. (1); Frigerio, S. (1); Schenato, L. (1); Pasuto, A. (1); Sterlacchini, S. (2), 2012, Review of the current risk management strategies in Europe for hydro-meteorological hazards at protection and emergency level,
Comprehensive Flood Risk Management_ Research for Policy and Practice, edited by Frans Klijn, Timo Schweckendiek, pp. 971–980. Leiden_ CRC Press, 2012,
N. Dixon, M.P. Spriggs, G. Marcato, A. Pasuto, 2012, Landslide hazard evaluation by means of several monitoring thecniques, including an acoustic emission sensors,
11TH INTERNATIONAL AND 2ND NORTH AMERICAN SYMPHOSIUM ON LANDSLIDE AND ENGINEERED SLOPES, BANFF, CANADA, 3-8 JUNE 2012,
Cortes V.J., Frigerio S., Schenato L., Sterlacchini S. & Pasuto A., 2012, Decision Support Systems and Early Warning Solutions_ a review in European context,
EGU - European Geosciences Union, Vienna, Austria, 22-27 April 2012,
Abstract
According to the aim of the CHANGES network, an EU funded project, research is carried ...
According to the aim of the CHANGES network, an EU funded project, research is carried out towards the
improvement of the emergency management strategies for hydro-meteorological hazards under the effects of
climate and the pressure of socio-economic changes. Aim supported on the need to enhance local resilience to
these hazards under different scenarios, if possible by means of a multi-disciplinary and multi-hazard approach.
Both requirements recognized on the scientific and practical community.
In this context, the current management of hydro-meteorological hazards have posed some difficulties due to
the complexity of the phenomena and the processes associated. These impacts, usually developed as a domino
effect are still not properly understood and require a management strategy that combines active and passive
mitigation measures. On the other hand, the every time most destructive effect of these hazards and the available
information and communication techniques has also stressed the responsible authorities to prepare, develop and
implement more effective safeguard plans. Finally, a combined approach to this situation depicts a research way
by integrating the development and implementation of early warning systems (EWS) and contingency plans (CP),
which is generally constricted by the state-of-art and particular conditions for the assessment of hazards in place.
Consequently, here is presented a review of Decision Support Systems (DSS) and EWS on hydrometeorological
hazards such as flash floods, debris flows and landslides as a starting point for such a research initiative.
Identification of common and basic features, advantages and disadvantages are expected to derive some elements
for possible developments. The review is carried from the key conclusions and recommendations identified with
past experiences of testing and developing a common platform; which generally comprises workflow management
modules encrypted in a DSS with GIS interface and communication strategies and tools by ICT (Information
& Communication Technology) for preparedness and response activities in the field of Civil Protection. The
test experience was a joint development between CNR -IDPA and CNRS & University of Strasbourg for the
Consortium of Mountain Municipalities Valtellina di Tirano, (Lombardia region, Italy)and the ONF-RTM Service
of Barcelonnette (French South Alps).
Schenato L., Palmieri L., Vianello L., Marcato G., Gruca G., Van De Watering T., Iannuzzi D., Pasuto A., Galtarossa A., 2012, Analysis of fiber optic sensor application to precursory acoustic signals detection in rockfall events,
22nd International Conference on Optical Fiber Sensors, Beijing, China, 12-19 October 2012,
Abstract
Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions in rockfall events are ...
Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions in rockfall events are proposed and experimentally characterized. While both sensors are interferometric, the first one use a fiber coil as sensing element, whereas the second sensor exploits a micro-machined cantilever carved on the top of a ferrule. Preliminary experimental comparison with standard piezo-electric transducers shows the viability of such FOSs for acoustic emission monitoring in rock masses.
Frigerio S., Kappes M.S., Glade T. and Malet J-P., 2012, MultiRISK: a platform for Multi-Hazard Risk Modelling and Visualisation,
Rendiconti online Società Geologica Italiana 19 (2012): 32–35.,
Pasuto A., Bossi G., Cavalli M., Frigerio S., Mantovani M., Marcato G., Schenato L., 2012, Monitoraggio della frana del Rotolon, Recoaro Terme (VI): relazione finale,
2012,
Marcato G., Bossi G., Rivelli F. R., Borgatti L., 2012, Debris flood hazard documentation and mitigation on the Tilcara alluvial fan (Quebrada de Humahuaca, Jujuy province, North-West Argentina),
Natural hazards and earth system sciences (Print) 12 (2012): 1873–1882. doi_10.5194/nhess-12-1873-2012,
DOI: 10.5194%2Fnhess-12-1873-2012
Abstract
For some decades, mass wasting processes such as landslides and debris floods have been threatening ...
For some decades, mass wasting processes such as landslides and debris floods have been threatening villages and transportation routes in the Rio Grande Valley, named Quebrada de Humauhuaca. One of the most significant examples is the urban area of Tilcara, built on a large alluvial fan. In recent years, debris flood phenomena have been triggered in the tributary valley of the Huasamayo Stream and reached the alluvial fan on a decadal basis.
In view of proper development of the area, hazard and risk assessment together with risk mitigation strategies are of paramount importance. The need is urgent also because the Quebrada de Humahuaca was recently included in the UNESCO World Cultural Heritage. Therefore, the growing tourism industry may lead to uncontrolled exploitation and urbanization of the valley, with a consequent increase of the vulnerability of the elements exposed to risk. In this context, structural and non structural mitigation measures not only have to be based on the understanding of natural processes, but also have to consider environmental and sociological factors that could hinder the effectiveness of the countermeasure works.
The hydrogeological processes are described with reference to present-day hazard and risk conditions. Considering the socio-economic context, some possible interventions are outlined, which encompass budget constraints and local practices. One viable solution would be to build a protecting dam upstream of the fan apex and an artificial channel, in order to divert the floodwaters in a gully that would then convey water and sediments into the Rio Grande, some kilometers downstream of Tilcara. The proposed remedial measures should employ easily available and relatively cheap technologies and local workers, incorporating low environmental and visual impacts issues, in order to ensure both the future conservation of the site and its safe exploitation for inhabitants and tourists. © 2012 Author(s).
Picco L., Mao L., Buzzi E., Cavalli M., Rigon E., Moretto J., Delai F., Ravazzolo D., Lenzi M.A., 2012, Evaluating bank erosion along a gravel bed braided river using terrestrial laser scanner,
Quaderni di Idronomia montana 30 (2012): 407–416.,
AA.VV., 2012, Permafrost in Veneto region_ distribution, analysis and potential environmental effects,
Permafrost in Veneto region_ distribution, analysis and potential environmental effects, pp. 1–100, 2012,
Schenato L., Palmieri L., Gruca G., Iannuzzi D., Marcato G., Pasuto A., Galtarossa A., 2012, Fiber optic sensors for precursory acoustic signals detection in rockfall events,
Journal of the European Optical Society. Rapid publications 7 (2012): 1–5. doi_10.2971/jeos.2012.12048,
DOI: 10.2971%2Fjeos.2012.12048
Abstract
Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions in rockfall events are ...
Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions in rockfall events are addressed and experimentally characterized. Both sensors are based on interferometric schemes, with the first one consisting of a fiber coil used as sensing element and the second one exploiting a micro-machined cantilever carved on the top of a ferrule. Preliminary comparisons with standard piezo-electric transducers shows the viability of such FOSs for acoustic emission monitoring in rock masses.
Marchi L., 2012, Comment on “Geomorphic hazards and intense rainfall_ the case study of the Recco Stream catchment (Eastern Liguria, Italy)” by Faccini et al. (2012),
Natural hazards and earth system sciences (Print) 12 (2012): 3169–3170. doi_10.5194/nhess-12-3169-2012,
DOI: 10.5194%2Fnhess-12-3169-2012
Abstract
Faccini et al. (2012) describe an intense rainstorm
that caused a flash flood and triggered landslides ...
Faccini et al. (2012) describe an intense rainstorm
that caused a flash flood and triggered landslides in a sector
of Eastern Liguria (Italy) on 1 June 2007 and discuss the
implications for geomorphic hazard assessment and land use
planning. This comment points out some weaknesses in the
use of weather radar for the assessment of rainfall and in the
documentation of flood response.
Trevisani S, Cavalli M, Marchi L, 2012, Reading alpine morphology according to surface texture_ two approaches compared.,
EGU General Assembly 2012, Vienna, 2012,
Abstract
The availability of high resolution digital terrain models (HR-DTM) opens the possibility to characterize quantitatively ...
The availability of high resolution digital terrain models (HR-DTM) opens the possibility to characterize quantitatively the solid earth surface morphology at high level of spatial detail. From this perspective, surface texture
characterization can be intended in an analogous way to what performed for the analysis of artificial surfaces.
The characterization of surface texture plays a pivotal role in the context of geo-structural and geomorphological
interpretation and mapping, and offers interesting prospects from the side of hydrogeological and geo-engineering
issues. In this work, we explore two methodologies for surface texture analysis. The study area is a small alpine
basin (Missiaga basin, North-Eastern Italy), characterized by a complex surface morphology. The two methodologies, one based on geostatistical indexes and the other on local binary patterns, are applied to a 2 m pixel
size HR-DTM. The results of this exploratory analysis are discussed from the perspective of the potentialities in
information retrieval and applicability
Cavalli M, Trevisani S, Marchi L, Penna D, Borga M, Dalla Fontana G, 2012, Monitoring the runoff response of an ephemeral rocky basin_ a case study in the Dolomites (North-Eastern Italy),
EGU General Assembly 2012, Vienna, 2012,
Abstract
In high elevation alpine catchments, first-order streams are often constituted by steep and narrow channels ...
In high elevation alpine catchments, first-order streams are often constituted by steep and narrow channels bound by
cliffs. These channels frequently have a structural control imposed by fractures and faults in bedrock and typically
constitute temporary streams where snowmelt processes strongly influence runoff. Rocky headwater basins show a
different hydrological response with respect to soil-mantled basins and their hydrology is poorly known due to the
lack of widespread monitoring sites. Herein we present the preliminary results achieved through an experimental
hydro-meteorological monitoring network setup in a 0.1 km2
rocky headwater basin located on the southern flank
of the Sella Group in the Dolomites (North-Eastern Italy). Elevation ranges between 2700 m, at the outlet, and
3174 m, with an average value of 2950 m. Geology is constituted mainly by the Norian "Dolomia Principale"
(Dolomite) featuring a complex structural setting. The monitoring network, active since 2009, is designed with
three rain gauges with a time rate of 5 minutes. Two are located at 2609 and 2597 m (close to the outlet), and
the third is located on the divide in the central part of the basin (2911 m). Runoff at the outlet is monitored by a
pressure transducer. The time interval was set at 5 minutes in the summer months in order to capture the stream
response due to intense and spatially-concentrated rainfall events. In winter the pressure transducer is maintained
active with a time rate of 30 minutes so as to be ready to register in spring the stream response due to snowmelt.
In the summer 2011, some precipitation, runoff, snow and spring water samples for isotopic analysis (
18
O and
2
H) were collected aiming to better characterize the origin of subsurface water and the main sources to runoff.
Preliminary results show ephemeral presence of runoff, mostly occurring during snowmelt (from May to early
July) and after intense summer rainstorms. The lag-time from precipitation centroid to runoff peak (on the order
of about 1 hour) is rather long for a very small and steep basin. This is likely due to the presence of fractured
bedrock that creates a shallow, subsurface reservoir and increases the catchment response time. Isotopic data of
water samples well reflect the precipitation signal indicating reduced evaporation processes during the transfer of
the water input to the outlet. Moreover, the isotopic composition of streamflow is close to that of the sampled
springs but less depleted than snowmelt samples, revealing a possible contribution to runoff of snowmelt water
mixed with subsurface water previously stored in the system.
Schenato L., Palmieri L., Chiarello F., Marcato G., Gruca G., van de Watering T., Iannuzzi D., Pasuto A., Galtarossa A., 2012, Experimental analysis of fiber optic sensor for detection of precursory acoustic signals in rockfall events,
Fotonica 2012, 14° Convegno Nazionale delle Tecnologie Fotoniche, Firenze, 15-17 maggio 2012,
Abstract
Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions (AEs) in rockfall events ...
Two fiber optic sensors (FOSs) for detection of precursory acoustic emissions (AEs) in rockfall events are proposed and experimentally characterized. The tests show the feasibility of the addressed FOSs for the acoustic emission sensing in rocks.
Ruiz-Villanueva V.; Borga M.; Zoccatelli D.; Marchi L.; Gaume E.; Ehret U., 2012, Extreme flood response to short-duration convective rainfall in South-West Germany,
Hydrology and earth system sciences 16 (2012): 1543–1559. doi_10.5194/hess-16-1543-2012,
DOI: 10.5194%2Fhess-16-1543-2012
Abstract
The 2 June 2008 flood-producing storm on the
Starzel river basin in South-West Germany is examined ...
The 2 June 2008 flood-producing storm on the
Starzel river basin in South-West Germany is examined as a
prototype for organized convective systems that dominate the
upper tail of the precipitation frequency distribution and are
likely responsible for the flash flood peaks in Central Europe.
The availability of high-resolution rainfall estimates from
radar observations and a rain gauge network, together with
indirect peak discharge estimates from a detailed post-event
survey, provided the opportunity to study in detail the hydrometeorological
and hydrological mechanisms associated
with this extreme storm and the ensuing flood. Radar-derived
rainfall, streamgauge data and indirect estimates of peak discharges
are used along with a distributed hydrologic model to
reconstruct hydrographs at multiple locations. Observations
and model results are combined to examine two main questions,
(i) assessment of the distribution of the runoff ratio
for the 2008 flash flood and how it compares with other less
severe floods; and (ii) analysis of how the spatial and temporal
distribution of the extreme rainfall, and more specifically
storm motion, controls the flood response. It is shown that
small runoff ratios (less than 20 %) characterized the runoff
response and that these values are in the range of other, less
extreme, flood events. The influence of storm structure, evolution
and motion on the modeled flood hydrograph is examined
by using the "spatial moments of catchment rainfall".
It is shown that downbasin storm motion (in the range of
0.7-0.9ms-1) had a noticeable impact on flood response by
increasing the modeled flood peak by 13 %.
Trevisani S.; Cavalli M.; Marchi L., 2012, Surface texture analysis of a high-resolution DTM_ Interpreting an alpine basin,
Geomorphology (Amst.) 161-162 (2012): 26–39. doi_10.1016/j.geomorph.2012.03.031,
DOI: 10.1016%2Fj.geomorph.2012.03.031
Abstract
This study focuses on a geomorphometric analysis of a small headwater basin of the Dolomites ...
This study focuses on a geomorphometric analysis of a small headwater basin of the Dolomites (Eastern
Italian Alps). The analysis of the fine-scale surface morphology was performed on a high-resolution digital
elevation model (cell size 2 m) derived from an airborne LiDAR survey. The topography was synthesized by a
set of spatial-statistical indexes representing a signature of the local surface morphology, and the
relationships between the geomorphometric indexes and morphological features were evaluated. The
studied basin was then segmented by means of a fuzzy k-means classification algorithm into different spatial
subdomains characterized by specific local geomorphic signatures. This method allows us to objectively
choose the optimal combination of the number of classes and degree of fuzziness characterizing the studied
basin. Accordingly, the analysis can be adopted to the characteristics of the studied area, improving the
interpretation of surface morphology and offering a valuable tool for comparative analysis between different
geomorphological contexts. The results of the classification were compared with the actual surface
morphology based on high-resolution orthophotos, aerial photos, and field surveys.
Marchi L., Borga M., 2012, Flash Floods in Alpine Basins,
edited by Josef Krecek, Martin J. Haigh, Thomas Hofer, Eero Kubin, pp. 83–92. Dordrecht_ Springer, 2012,
Abstract
Flash floods are a major natural hazard under different climatic conditions. In the European Alps, ...
Flash floods are a major natural hazard under different climatic conditions. In the European Alps, flash flood hazard often results in major risk due to the increasing presence of elements at risk (urban areas and transportation routes) in valley floors and on alluvial fans endangered by flash floods. The assessment of the hazards related to flash floods requires collection of reliable quantitative data on these phenomena. Due to the space scale of flash flood occurrence, which mostly occur in ungauged catchments, hydrometeorological data from monitoring network need to be integrated by data collected by means of post-flood surveys. This paper presents methods for flash flood data collection and discusses the basic characteristics of flash floods in alpine catchments based on the analysis of a sample of 6 flash floods (20 catchments), which occurred from 1999 to 2006 in Italy, Austria and Slovenia.
Marcato G., Mantovani M., Pasuto A., Zabuski L., Borgatti L., 2012, Monitoring, numerical modelling and hazard mitigation of the Moscardo landslide (Eastern Italian Alps),
Engineering geology 128 (2012): 95–107.,
Abstract
The Moscardo Torrent basin (Eastern Italian Alps) is a high-risk site, since a large roto-translational ...
The Moscardo Torrent basin (Eastern Italian Alps) is a high-risk site, since a large roto-translational landslide might dam the torrent, with the consequence of increasing the possibility of large debris flow events, creating a threat for the infrastructures and the socio-economic activities of the villages that dot the valley below. The landslide, whose volume is estimated 2millionm 3, has been monitored since 2006 with inclinometers, electric piezometers and a GPS network. The velocity, along the entire body of the landslide, averages 1.0-1.5cm per month. The shear surface develops at depths varying from 9 to 10m to 55-62m, while the groundwater table is almost constant throughout the year, despite a cumulative rainfall of the area that usually reaches 2000mm/year. The movements were simulated in a numerical model, in order to estimate the stabilization effect obtained by different types of possible countermeasures. The simulation was carried out using FLAC 2D, with creep modelling. Visco-elasto-plastic model of the medium in the sliding zone was assumed, allowing to determine the relation between time and displacement. A 10-year displacement trend, starting from the initial situation of 2006 was simulated. Moreover, seismic conditions were taken into consideration with a quasi-static approach, by applying a horizontal acceleration. The numerical model was built and validated on the basis of the data retrieved from geological investigations, as well as from inclinometric and GPS measurements. The results show that an accurate and well-planned multidisciplinary approach can help the decision makers in the choice of the most effective engineering solution for the mitigation of landslide hazard and risk.
Lenzi M.A.; Mao L.; Cavalli M., 2011, Long-term monitoring of bedload and debris flows in two small alpine basins of different morphological settings,
Italian journal of engineering geology and environment (Online) (2011): 573–581. doi_10.4408/IJEGE.2011-03.B-063,
DOI: 10.4408%2FIJEGE.2011-03.B-063
Abstract
Sediment transport in steep mountain streams can occur as bedload or debris flows, depending on ...
Sediment transport in steep mountain streams can occur as bedload or debris flows, depending on basin geomorphology and sediment supply conditions. This paper compares two small catchments located in the Eastern Italian Alps (Rio Cordon and Moscardo Torrent) where the dominant sediment transport processes differ substantially. The former hosts a measuring station for water and sediment transport rates operating since 1986, whereas the latter was set up in 1989 to monitor debris-flow events. Differences in sediment dynamics between the two basins are quantitatively investigated by using a magnitude-frequency analysis that highlights the relatively low sediment supply of the Rio Cordon and the unlimited sediment availability in the Moscardo Torrent. This contrasting sediment transfer activity can be attributed to different basin and channel morphologies, which are analyzed in terms of sediment supply conditions and longitudinal profiles curves. © 2011 Casa Editrice Università La Sapienza.
Crepaz A., Defendi V., Frigerio S., Gabrieli J., Galuppo A., Magnabosco L., Mantovani M., Pasuto A., 2011, Il permafrost in Veneto_ distribuzione, analisi e possibili effetti ambientali. Progetto PermaNET – Programma Alpine Space,
2011,
Pasuto, A., Silvano, S., 2011, Geologia, geomorfologia e tettonica dell’area circostante la frana del Tessina.,
La Frana del Tessina_ laboratorio natural per la ricerca applicata alla protezione del territorio, edited by Ester Cason Angelini, pp. 17–26, 2011,
Soldati, Mauro; Bonachea, Jaime; Bruschi, Viola Maria; Coratza, Paola; Devoto, Stefano; Gonzalez-Diez, Alberto; Mantovani, Matteo; Pasuto, Alessandro; Piacentini, Daniela; Remondo, Juan; Schembri, John A., 2011, A Comprehensive Approach to Investigate Maltese Coastal Landslides,
3rd International Conference on the Management of Coastal Recreational Resources MCRR, pp. 472–473, Grosseto, 27-30/10/2010,
Abstract
This paper presents geomorphological and engineering-geological studies carried out along the north-western coast of Malta ...
This paper presents geomorphological and engineering-geological studies carried out along the north-western coast of Malta by research groups belonging to the University of Modena and Reggio Emilia (Italy), the National Research Council (Italy), the University of Malta and the University of Cantabria (Spain). The research are funded by Fondazione Cassa di Risparmio di Modena and the European Centre for Geomorphological Hazards (CERG) and focus on the evolution of coastal landslides with emphasis on the issues of hazard and risk, with respect to the recreational infrastructures present in the area and to the several tourists that visit this stretch of coast.
Paolo Tarolli, Marco Borga, Daniele Penna, Stefano Crema, 2011, Progetto MassMove_ rapporto terzo stato di avanzamento, relazione finale,
2011,
Bossi G., Deganutti A., Pasuto A., Tecca P.R., 2011, Collaborazione in ricerche sul sito di Cancia (comune di Borca di Cadore – BL) per lo studio e l’individuazione di possibili soluzioni progettuali per interventi di mitigazione del rischio da colata detritica,
2011,
Abstract
Nell'ambito della convenzione stipulata tra la Provincia di Belluno e l'Istituto di Ricerca per
la Protezione ...
Nell'ambito della convenzione stipulata tra la Provincia di Belluno e l'Istituto di Ricerca per
la Protezione Idrogeologica - Unità Organizzativa di Supporto di Padova, la presente relazione
tecnica illustra una serie di possibili proposte di intervento volte ad affrontare e, per quanto
possibile, risolvere, la situazione di grave rischio idrogeologico che interessa l'abitato di Cancia, nel
comune di Borca di Cadore, Belluno.
Il fenomeno in oggetto rappresenta da sempre una seria minaccia per la sicurezza degli
abitati posti sul conoide e la situazione si è ulteriormente aggravata a seguito della costruzione, alla
fine degli anni '50, del villaggio turistico "Eni. Negli ultimi decenni si è inoltre registrato un
aumento nella ricorrenza temporale degli eventi, probabilmente legato ad un più generale
cambiamento climatico, che ha portato ad una più elevata ricorrenza di eventi piovosi
particolarmente intensi. Gli eventi del '94 e '96 e, più di recente, il disastroso fenomeno del 18
luglio 2009, testimoniano infatti un incremento nelle condizioni di rischio a cui sono sottoposti, non
solo gli abitanti, ma anche e soprattutto le infrastrutture e le abitazioni della frazione di Cancia.
In questo contesto il quesito posto dalla Provincia di Belluno era quello di individuare, sulla
base di una modellazione matematica, delle possibili soluzioni strutturale per la mitigazione del
rischio sul conoide ed in particolare per i centri abitati. Si è quindi scelto di impiegare il codice di
calcolo FLO-2D per un'analisi delle modalità di propagazione delle colate detritiche lungo tre
percorsi artificiali alternativi, posti in sinistra idrografica dell'attuale canale, anch'esso artificiale. I
dati topografici utilizzati nel presente studio, sono stati ottenuti dal rilievo LIDAR con risoluzione 5
m, eseguito nel maggio 2009 e fornito dalla Provincia di Belluno. Si è voluto analizzare possibili
scenari alternativi senza condizionamenti legati a problemi di budget o di fattibilità delle possibili
opere da proporre in modo da individuare le soluzioni scientificamente più valide. Si rimanda
quindi a studi di fattibilità, che potranno essere svolti successivamente da studi professionali o dagli
uffici tecnici della Provincia, la scelta definitiva degli interventi da attuare.
La presente relazione rappresenta dunque la fase finale dello studio condotto e che ha
implicato numerosi sopralluoghi sul sito e una campagna di misure topografiche in corrispondenza
della zona apicale del conoide. E' stata inoltre svolta una ricognizione in elicottero per verificare lo
stato dei luoghi, soprattutto nella zona sorgente a ridosso di Forcella Salvella e nel bacino del Bus
del Diau.
Pasuto A.; Bossi G.;, 2011, L’attività di monitoraggio gestita dal CNR-IRPI di Padova,
LA FRANA DEL TESSINA_ laboratorio naturale per la ricerca applicata alla protezione del territorio, pp. 51–78. Belluno_ Fondazione Angelini, 2011,
Cavalli M.; Tarolli P., 2011, Application of LiDAR technology for rivers analysis,
Italian journal of engineering geology and environment (Online) (2011): 33–44. doi_10.4408/IJEGE.2011-01.S-03,
DOI: 10.4408%2FIJEGE.2011-01.S-03
Abstract
Poter disporre di dettagliati dati topografi ci è un requisito fondamentale per lo studio dell'ambiente ...
Poter disporre di dettagliati dati topografi ci è un requisito fondamentale per lo studio dell'ambiente fl uviale sia in termini qualitativi
che quantitativi. Infatti, i dati topografi ci forniti dalle tradizionali carte
topografi che regionali sono spesso non suffi cientemente accurati per
consentire l'individuazione e la mappatura delle morfologie presenti
mentre, a fronte di una maggiore accuratezza, i rilievi di terreno (teodolite, GPS), richiedono notevoli risorse temporali e fi nanziarie. Il
LiDAR (Light Detection And Ranging) aereo consente l'acquisizione di dati topografi ci ad alta risoluzione, con accuratezza verticale ed
orizzontale di pochi centimetri, su vaste aree, contribuendo signifi cativamente ad una migliore rappresentazione della superfi cie terrestre
a costi sempre più accessibili. Un aspetto particolarmente qualifi cante
di questa recente tecnologia, che la rende decisamente vantaggiosa rispetto alle tradizionali tecniche di rilievo del territorio, è la capacità
di derivare modelli digitali del terreno (DTM) ad alta risoluzione (~ 1
m) a partire dai soli punti corrispondenti al suolo generati rimuovendo
dalla nuvola di punti originaria, con processi di fi ltraggio automatizzati,
i punti relativi alla vegetazione e a strutture antropiche (case, ponti). La
complessità morfologica, la varietà di copertura del suolo e la presenza di corpi idrici, che notoriamente caratterizzano l'ambiente fl uviale,
rendono l'applicazione del LiDAR aereo in questo contesto più complicata rispetto ad altri ambiti. L'obiettivo di questo contributo è quello
di mettere in luce potenzialità e limiti del LiDAR aereo nello studio dei
corsi d'acqua, presentando alcune signifi cative ricerche ed i principali
aspetti metodologici di questa tecnologia in ambiente fl uviale
Galtarossa A., Ferri F., Galgaro A., Marcato G., Pasuto A., Palmieri L., Punturo R., Sassi R., Schenato L., Teza G., Di Noto V., 2011, Ultrasonic emissions related to rocks cracking precursors_ first results from rock samples tests,
GeoItalia 2011, 2011,
Abstract
None ...
None
Schenato L., Benedetti D., Palmieri L., Galtarossa A., 2011, Experimental analysis of fiber optic sensor for detection of precursory acoustic signals in rockfall events,
Fotonica 2011, Genova, 9-11/05/2011,
Abstract
A fiber optic sensor for the detection of ultrasonic acoustic emissions as precursors of rock-fall ...
A fiber optic sensor for the detection of ultrasonic acoustic emissions as precursors of rock-fall is proposed. The bare sensing approach is investigated and a preliminary experimental characterization is presented.
Goldin B., Mion E., Cavalli M., Marchi L., 2011, Nota sull’aggiornamento della pericolosità sintetica dei conoidi,
2011,
Deganutti A.M., Pausto A., Tecca P.R., 2011, STUDIO DELLA PERICOLOSITA DA COLATA DETRITICA NEL BACINO DEL TORRENTE SLIZZA (UD) – CONVENZIONE TRA LAUTORITA DI BACINO REGIONALE DEL FRIULI VENEZIA GIULIA E LIRPI CNR. Relazione finale,
2011,
Frigerio S., Mantovani M., Monego M., Pasuto A., Trevisani S., Baldo M., 2011, Studio della stabilità di versante rispetto alle variazioni del permafrost in base a cambiamenti climatici (programma operativo Alpine Space – progetto PERMANET),
2011,
Bossi G., Deganutti A., Pasuto A., Tecca P.R., 2011, Collaborazione in ricerche sul sito di Cancia (Borca di Cadore, BL) per lo studio e l’individuazione di possibili soluzioni progettuali per interventi di mitigazione del rischio da colata detritica,
2011,
Bossi G., Mantovani M., Marcato G., Pasuto A., 2011, Convenzione tra la Regione del Veneto e il Consiglio Nazionale delle Ricerche Istituto di Ricerca per la Protezione Idrogeologica Unita di Padova per lo studio della frana di Mortisa (Cortina dAmpezzo Bl),
2011,
