Regione Autonoma Valle dAosta

Quart, Italy

Regione Autonoma Valle dAosta

Quart, Italy
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Agency: European Commission | Branch: H2020 | Program: ERA-NET-Cofund | Phase: LCE-26-2016 | Award Amount: 31.30M | Year: 2017

The GeoERA proposal is put forward by the national and regional Geological Survey Organisations (GSO) of Europe. Its overall goal is to integrate the GSOs information and knowledge on subsurface energy, water and raw material resources, to support sustainable use of the subsurface in addressing Europes grand challenges. The GeoERA consortium will organise and co-fund together with the EC a joint call for transnational research projects that address the development of 1) interoperable, pan-European data and information services on the distribution of geo-energy, groundwater and raw material resources; 2) common assessment frameworks and methodologies supporting better understanding and management of the water-energy-raw materials nexus and potential impacts and risks of subsurface use; 3) knowledge and services aimed at European, national and regional policy makers, industry and other stakeholders to support a more integrated and efficient management and more responsible and publicly accepted exploitation and use of the subsurface. The transnational projects selected in the call will be implemented by the consortium partners themselves, who provide their co-funding in-kind. GeoERA will contribute to the overall EU objective of building the ERA through enhanced cooperation and coordination of national and regional Geological Survey research programmes. GeoERA will also include forward looking activities, including the creation of opportunities for future collaborative research, and the feasibility assessment of an Article 185 initiative in Applied Geoscience as follow-up to the GeoERA ERA-NET towards the development of the ultimate goal of delivering a Geological Service for Europe.

Bertolo D.,Regione Autonoma Valle dAosta | Monopoli B.,Land Technology and Services S.r.L.
Rendiconti Online Societa Geologica Italiana | Year: 2015

The Monte Cervino sheet (070) of the Geological Map of Italy, scale 1:50.000 (CARG Project - ISPRA), covers the high mountains of the Pennine Alps from the northern flank of the middle Aosta valley (423 km2) to the southern Valais (149 km2). This is a key area of the western Alps due to the birth and development of geological studies on Alpine tectonics, and is dominated by the Austroalpine-Penninic collisional wedge, a fossil subduction complex of continental and oceanic nappes. The Italian part of the sheet was surveyed on a scale of 1:10.000: the Italian working group was coordinated by Giorgio V. Dal Piaz and was composed of Andrea Bistacchi, Nicola Bistacchi, Giorgio V. Dal Piaz, Giovanni Dal Piaz, Matteo Massironi, Bruno Monopoli, Alessio Schiavo e Giovanni Toffolon, and also greatly benefited from collaboration by Leonsevero Passeri and Gloria Ciarapica. The Swiss part of the sheet was prepared at 1:50.000 scale, thanks to Yves Gouffon (swisstopo) and based on the Chanrion-Mont Velan (Burri et al., 1998) and Matterhorn sheets (Bucher et al., 2004) of the Geologischer Atlas der Schweiz, scale 1:25.000. The geological dataset (1:10.000, 1:25.000 and 1:50.000) has been implemented and validated in GIS environment by Land Technology & Services S.r.L under the supervision G.V. Dal Piaz and with the responsibility of the Regione Autonoma Valle d'Aosta. Starting from geometric primitives and alphanumeric attributes of Data Base at 1:50.000, LTS with the collaboration of La Nuova Lito S.n.c, made the cartographic layout and letterpress of the sheet and notes. © Società Geologica Italiana, Roma 2015.

Margreth S.,WSL Institute for Snow and Avalanche Research SLF | Faillettaz J.,ETH Zurich | Funk M.,ETH Zurich | Vagliasindi M.,Fondation Montagne SUre | And 2 more authors.
Cold Regions Science and Technology | Year: 2011

The Whymper glacier is a hanging glacier located on the south face of the Grandes Jorasses (Mont Blanc Massif, Italy). Combined snow and ice avalanches triggered by ice masses breaking off from the hanging glacier endanger the village of Planpincieux and its surroundings in the Val Ferret. In 1997, the SLF and the VAW developed the first safety concept for the village for several scenarios based on the monitoring of the glacier and an assessment of the local avalanche hazard. At the end of June 1998 almost the entire Whymper glacier (around 150,000m3) sheared off and the ice avalanche stopped only 500m above the valley road. The Whymper glacier has grown back and now has a similar surface topography as in 1998. The SLF and VAW improved the 1997 safety concept by considering several scenarios of falling ice volumes. The different ice avalanche scenarios were simulated using the 2-dimensional calculation model RAMMS. The necessary safety measures are defined in relation to the local avalanche danger level and the potential volume of an icefall. The hanging glacier is continuously monitored with a system consisting of a total station, GPS-stations, seismic sensors and visual observations. The improved safety concept has been operational since 2009. However, a dangerous icefall has not occurred yet. © 2011 Elsevier B.V..

Isotta F.A.,Federal Office of Meteorology and Climatology MeteoSwiss | Frei C.,Federal Office of Meteorology and Climatology MeteoSwiss | Weilguni V.,Bundesministerium fur Land und Forstwirtschaft | Percec Tadic M.,Meteorological and Hydrological Service of Croatia | And 14 more authors.
International Journal of Climatology | Year: 2014

In the region of the European Alps, national and regional meteorological services operate rain-gauge networks, which together, constitute one of the densest in situ observation systems in a large-scale high-mountain region. Data from these networks are consistently analyzed, in this study, to develop a pan-Alpine grid dataset and to describe the region's mesoscale precipitation climate, including the occurrence of heavy precipitation and long dry periods. The analyses are based on a collation of high-resolution rain-gauge data from seven Alpine countries, with 5500 measurements per day on average, spanning the period 1971-2008. The dataset is an update of an earlier version with improved data density and more thorough quality control. The grid dataset has a grid spacing of 5 km, daily time resolution, and was constructed with a distance-angular weighting scheme that integrates climatological precipitation-topography relationships. Scales effectively resolved in the dataset are coarser than the grid spacing and vary in time and space, depending on station density. We quantify the uncertainty of the dataset by cross-validation and in relation to topographic complexity, data density and season. Results indicate that grid point estimates are systematically underestimated (overestimated) at large (small) precipitation intensities, when they are interpreted as point estimates. Our climatological analyses highlight interesting variations in indicators of daily precipitation that deviate from the pattern and course of mean precipitation and illustrate the complex role of topography. The daily Alpine precipitation grid dataset was developed as part of the EU funded EURO4M project and is freely available for scientific use. © 2013 Royal Meteorological Society.

Martinotti G.,University of Turin | Giordan D.,National Research Council Italy | Giardino M.,University of Turin | Ratto S.,Regione Autonoma Valle dAosta
Geological Society Special Publication | Year: 2011

Deep-seated gravitational slope deformation (DSGSD) is a common and widespread type of large slope instability in the Alps. In the Aosta Valley region in NW Italy, DSGSDs occupy at least 13.5% of the regional territory. In this study, regional distribution analyses have been coupled with local detailed geological and geomorphological surveys of individual phenomena to detect the controlling factors, deformation processes and evolution stages of DSGSD. Data and maps from field and remote-sensing investigations have been supported by drill data and geomechanical and hydrogeochemical analyses from project studies for hydroelectric plants and tunnels. Several phenomena related to DSGSD have been studied thoroughly: gravity-induced stresses, tectonic-metamorphic setting, morphostructural relations, glacial and periglacial morphodynamics, recent tectonic evolution, hydrogeological conditions and karst phenomena have been generically indicated as controlling factors. In the studied area three of the controlling factors were crucial in differentiating the form and evolution of DSGSDs: deep dissolution, surface tectonics, and tectonostructural setting. They are presented as possible end members of a classification scheme for DSGSDs. © The Geological Society of London 2011.

Forno M.G.,University of Turin | Gattiglio M.,University of Turin | Gianotti F.,University of Turin | Guerreschi A.,University of Ferrara | Raiteri L.,Regione Autonoma Valle dAosta
Quaternary International | Year: 2013

The Plan di Modzon is a mountain area (2300m) located in the Verrogne Valley, NW of Aosta (Western Alps). It occurs along the contact between the Middle Penninic (micaschist and gneiss from the Gran San Bernardo Nappe) and the overlying upper units of the Piedmont Zone (carbonate calcschist alternating with marble).This area, largely shaped by Pleistocene glaciers, was involved in a wide deep-seated gravitational slope deformation (Pointe Leysser DSGSD) on the western extension of the Becca France doubled ridges. Several ridges that were affected by glacial erosion, discontinuously covered by glacial sediments, are present throughout the area. Extremely fractured rocks and various gravitational forms (minor scarps and trenches) mark the DSGSD.Several archaeological sites (MF1-MF9) have recently been found between 2242 and 2292m asl. They have revealed artifacts of rock crystal (hyaline quartz) referred to the Sauveterrian stage of the Mesolithic. An ensemble of other archaeological evidence is referred to the Copper Age. The investigation in progress specifically concerns the systematic excavation of sites MF1 and MF3.Some concomitant morphological factors have created very favorable conditions for prehistoric settlements in the Plan di Modzon area, including the exceptionally wide valley floor directly perched on the main Dora Baltea Valley, in consequence of the Verrogne Glacier diversion promoted by the P. Leysser DSGSD. Easy and direct accessibility to this area is provided by the gently-dipping slope of the Dora Baltea Valley affected by the DSGSD. The ridged and grooved morphology as the result of the glacial and gravitational interaction, offered wide surfaces free from geological hazards (debris flow and avalanche processes). The DSGSD is, therefore, one of the primary causes of the archaeological settlement of this area, contributing to create a morphology adapted to prehistoric settlements. © 2013 Elsevier Ltd and INQUA.

Comina C.,University of Turin | Forno M.G.,University of Turin | Gattiglio M.,University of Turin | Gianotti F.,University of Turin | And 2 more authors.
Italian Journal of Geosciences | Year: 2015

One of the few examples of high mountain prehistorical archaeo-logical sites in northern Italy has been discovered within the so called Plan di Modzon area, at 2300 m a.s.l., in the Aosta Valley (Western Alps). This area shows interesting geological features and morphological evidence which have been recently linked to a wide Deep-Seated Gravitational Slope Deformation (DSGSD). A probable filled lake and the presence of buried landforms have been also hypno tized on the basis of geological observations, resulting in the need for new devoted surveys to confirm these hypotheses. A better and comprehensive understanding of the geological evolution of the area is indeed necessary to allow a precise reconstruction of the environments in which man has inhabited these territories. Combined Electric Resistivity Tomographies (ERT) and geological surveys have been therefore used to better define the occurrence and nature of morphological evidence along the western slope of the filled lake, in which one of the archaeological sites has been discovered and excavated. The outcomes of the integration of the two surveys is a more refined definition of the geological forms, in respect to the one previously assumed on the basis of surface surveys only. Indeed, ERT revealed buried zones with low resistivity associable to the presence of sliding surfaces and also showed the geometry and thickness of the sediments within the filled lake. Geological surveys also evidenced a DSGSD evolution in the area constrained to Lateglacial, because of the lack of particularly evident gravitative forms, i.e. remodeled by glacial abrasion. © 2015 Società Geologica Italiana, Roma.

Ciarapica G.,University of Perugia | Passeri L.,University of Perugia | Bonetto F.,Regione Autonoma Valle d'Aosta | Piaz G.V.D.,Accademia delle Science
Swiss Journal of Geosciences | Year: 2016

The Roisan zone is a metamorphic cover unit exposed along the ductile shear zone between the Dent Blanche s.s. and Mont Mary-Cervino Upper Austroalpine outliers, Aosta Valley, north-western Italian Alps. It is characterized by the occurrence of dolostones, pure marbles, marbles with quartz, calcirudites and ophiolite-free calcschists. Locally, dolostones preserve alternances of thick massive beds and thinner levels of planar stromatolites and other sedimentary structures and textures typical of a carbonate platform. In Mt Grand Pays they contain Dasycladales and foraminifers referable to the Norian. Pure marbles and marbles with quartz grains are tentatively referred to the end of Triassic–Early Jurassic, thin-bedded marbles and calcirudites to the Early and Middle Jurassic, calcschists from Middle Jurassic to Late Cretaceous. This Roisan succession is quite similar to the one of Mt Dolin, in the Swiss part of the Dent Blanche nappe, where the same Triassic foraminifer association has been reported. There, the fossils were found only in reworked pebbles, contained in calcirudites of presumed Jurassic age. Some differences exist between the two successions: calcirudites are abundant in the Mt Dolin and sporadic in the Roisan zone, whereas calcschists are very thick in the Roisan zone. As consequence the Mt Dolin succession can be considered settled down in the proximity of the faults related to the pre-oceanic rifting of the Piedmont basin, whereas the Roisan zone could have been deposited in a more distal area. © 2016 Swiss Geological Society

Bassani M.,Polytechnic University of Turin | Broccolato M.,Regione Autonoma Valle dAosta | Contrafatto C.,Citta Metropolitana di Turin | Dutto F.,Citta Metropolitana di Turin | Marinelli G.,Polytechnic University of Turin
SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure | Year: 2015

Natural and man-made extreme events have a great impact on the social cohesion and economic development of territories. The road network plays a key role in the aftermath of any such events by assuring accessibility to land and populated areas, and by facilitating the management of emergencies. Nevertheless, this role is limited in mountainous and valley areas where the road network density and capacity are low and hence more vulnerable. In the paper, the authors evaluated the vulnerability of such road networks in terms of reduced accessibility, an approach that the authors considered more pertinent than others available in literature. The two most important Italian North-Western transalpine corridors located along the Susa and Aosta valleys were selected as case studies, thus allowing for the investigation of cases that differ in terms of territorial structure and network layout. For the purpose of this study, the authors developed a dedicated GIS code based on the graph theory. The results obtained enabled the identification of those road sections which are extremely vulnerable, and where future investment should be directed in order to limit the effects of possible network failures in the event of emergencies. © 2015, International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII. All rights reserved.

Bassani M.,Polytechnic University of Turin | Broccolato M.,Regione Autonoma Valle dAosta | Contrafatto C.,Citta Metropolitana di Turin | Dutto F.,Citta Metropolitana di Turin | Marinelli G.,Polytechnic University of Turin
SHMII 2015 - 7th International Conference on Structural Health Monitoring of Intelligent Infrastructure | Year: 2015

Road networks in mountainous areas are particularly vulnerable following natural and man-made incidents since they are sparse and have a limited number of links and nodes. This weakness, or vulnerability, complicates the management of traffic flows in the event of emergencies, thus leading to problems of congestion and accessibility. The case of the international corridors along Alpine Valleys is significant since they serve both tourist and commercial routes, and have a typical tree-like structure that accommodates few roads dedicated to long-distance mobility and to local access. To manage emergencies and support the decision making process, local administrations, and Civil Protection Agencies should use tools able to evaluate the effects of localized or widespread network failures or incidents in real-time, and limit the effects of reduced accessibility and/or differentiated traffic demand. The authors have developed a dedicated tool, called PoliNET, which implements the Network Analyst® extension of ArcGIS® to solve specific vehicle routing problems for mountainous road networks. Essentially, PoliNET identifies the optimal (shortest and fastest) routes for different vehicle categories (cars and motorcycles, vans and small trucks, articulated lorries and tractor-trailers and exceptional load vehicles) when the network is operating under specific constraints (e.g. road clearances) and/or experiencing failures (interruptions). Some examples deriving from real events are presented and discussed in the paper. © 2015, International Society for Structural Health Monitoring of Intelligent Infrastructure, ISHMII. All rights reserved.

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