Marco Mancini, Gianluca Vignaroli, Francesca Ardizzone, Francesco Bucci, Mauro Cardinali,
Gian Paolo Cavinato, Giuseppe Cosentino, Cristina Di Salvo, Federica Fiorucci, Iolanda Gaudiosi, Silvia Giallini, Edoardo Peronace, Federica Polpetta, Maria Luisa Putignano, Paola
Reichenbach, Michele Santangelo, Veronica Scionti, Maurizio Simionato, Pietro Sirianni,
Francesco Stigliano, and the CNR IGAG-IRPI Seismic Microzonation Team, 2017, A basic tool for post-seismic rebuilding_ the new 1_5.000 scale geological map of Amatrice town,
European Geosciences Union General Assembly 2017, pp. 1–1, Vienna, 23-28/04/2017,
Abstract
A geological survey has been carried out in the area of Amatrice, the most damaged ...
A geological survey has been carried out in the area of Amatrice, the most damaged town after the 24 August 2016
event, to provide a basic reference for geophysical and geotechnical data useful for seismic response analyses and
microzonation studies.
The morphologies and the stratigraphic-structural setting of the investigated area are detailed on a 1_5000
scale geological map and cross sections, which derive from the integration of field-based observations and
photo-geological interpretation.
The Amatrice basin is filled by the one km-thick Laga Formation, composed of Messinian syn-orogenic marine
sandstones and siltstones (Marini et al., 2015) and covered with disconformity by Quaternary conglomerates and
sands, referred to alluvial fans, fluvial terraces and landslides. Presently, the Amatrice basin is a structurallycontrolled
depression bounded eastward by the Gorzano Mt ridge, and westward by the Sibillini Mts thrust front
(Koopman, 1983).
Our observations focus on (i) relationships between geometry and extent of cover deposits, (ii) bedding of the
substratum, and (iii) areal arrangement and distribution of the main fault systems.
Amatrice is located on a N-S trending mesa bounded by steep escarpments. The siliciclastic substratum was
folded by syn-orogenic movements, broadly forming a NW-SE-trending synform, and is dissected by two main
fault systems of the Plio-Quaternary post-orogenic tectonics. The first system consists of N-S striking high angle
normal fault segments, each one having continuous length of up to 2 km; the second consists of E-W-striking
normal-to-strike slip fault systems dissecting the first one. N-S-striking faults are morphologically expressed by
fault plane scarps and triangular facets, and control the areal distribution of the Quaternary fluvial deposits. These
are up to 50 m thick below Amatrice and thin to few metres along the north west direction. East of Amatrice, the
stratigraphic setting is dominated by SW-prograding alluvial fans, downlapping the substratum, while on the West
the stratigraphic setting is strongly complicated by large scale deformations (folding and tectonic repetitions)
produced by shortening mechanisms.
The recognized morphological irregularities, stratigraphic heterogeneities, and structural alignments are considered
critical elements to define, at local scale, subsoil models useful for evaluating seismic amplification effects.
Paola Salvati, Ivan Marchesini, Paola Reichenbach, Mauro Rossi, Francesca Ardizzone, Marco Donnini, 2017, Safety Project. Upgraded impact assessment on structures and infrastructures of the southern Tuscany (Volterra area) test site V1,
2017,
Abstract
Deliverable "D.E4.3 Upgraded impact assessment on structures and infrastructures of the southern Tuscany (Volterra area) ...
Deliverable "D.E4.3 Upgraded impact assessment on structures and infrastructures of the southern Tuscany (Volterra area) test site V1" is a deliverable of Task E "Geohazard impact assessment", in the framework of the Action E4 "Impact assessment on structures and infrastructures". This Task aims at assessing the impact of detected and/or assessed geohazards on road networks and built-up areas. The final goal is to provide an operable methodology, a protocol, which can be integrated into the Civil Protection prevention activities.
Paola Reichenbach(1), Ivan Marchesini(1), Massimiliano Alvioli(1), Mauro Rossi(1), Francesca Ardizzone(1), Silvia Bianchini(2), Lorenzo Solari (2), 2017, Safety Project. Hazard map of the southern Tuscany (Volterra area) test site,
2017,
Abstract
SAFETY is a two years research project (1 January 2016 - 31 December 2018) funded ...
SAFETY is a two years research project (1 January 2016 - 31 December 2018) funded under the ECHO (European Commission's Humanitarian aid and Civil Protection department) call, "Prevention and preparedness projects in Civil Protection and marine pollution". The mission of the project is to improve the efforts in detecting and mapping geohazards (i.e. landslides and subsidence), by assessing their activity and evaluating their impact on built-up areas and infrastructures networks. SAFETY will enhance ground deformation risk prevention and mitigation efforts in highly vulnerable geographic and geologic regions. The outcomes of the project will provide Civil Protection Authorities (CPA) with the capability of periodically evaluating and assessing the potential impact of geohazards on the selected sites.
"D.E2.2 Hazard map of the southern Tuscany (Volterra area) test site" is a deliverable of Task E "Geohazard impact assessment", in the framework of the action Action E.2 "Susceptibility and hazard maps". The action will focus on generating susceptibility and hazard maps using data available in the project test sites (Task D). The results of the susceptibility and hazard assessments will be used to evaluate the impact on the urban areas and infrastructures. The report will describe for the Volterra test site_ i) the statistical distribution of landslide size obtained using LAND-STAT, the software for the determination of landslide statistics from inventory maps; ii) the landslide susceptibility map prepared using slope units (SU).
Aleksandra Wrzesniak, Daniele Giordan, 2017, Development of an algorithm for automatic elaboration, representation and dissemination of landslide monitoring data,
Geomatics, natural hazards & risk (Online) (2017). doi_10.1080/19475705.2017.1392369,
DOI: 10.1080%2F19475705.2017.1392369
Abstract
Despite the support of technological improvements in hazard monitoring and management, the aspect of dissemination ...
Despite the support of technological improvements in hazard monitoring and management, the aspect of dissemination of scientific data is still underestimated. Hazard monitoring systems are usually organized in complex networks, composed of automatized procedures in order to capture, pre-process, elaborate, transfer the monitoring result data and to generate warnings. However, a well-organized communication strategy leads to
success in hazard management, especially concerning emergency conditions. In this paper, we present an approach for monitoring results dissemination in the form of single-page informative bulletin, composed of synthetic information dedicated to non-expert receivers. We developed an automatic methodology for fast and efficient data analysis and proper elaboration and dissemination, and we integrated all these elements into an algorithm for automatic bulletin generation. Our purpose was to construct a configurable tool that could be easily adapted to the hazard conditions under study. Afterwards, we applied the developed algorithm to landslide monitoring data-set. We validated the proposed approach by verifying the consistency of the model. Our methodology shows how to integrate a variety of information relative to landslide evolution, and it can be a convenient support for the management of natural hazards especially during critical situations.
Daniele Giordan, Martina Cignetti, Marco Baldo, Danilo Godone, 2017, Relationship between man-made environment and slope stability_ the case of 2014 rainfall events in the terraced landscape of the Liguria region (northwestern Italy),
Geomatics, natural hazards & risk (Online) (2017). doi_10.1080/19475705.2017.1391129,
DOI: 10.1080%2F19475705.2017.1391129
Abstract
In the autumn of 2014, a series of rainfall events affected several sectors of the ...
In the autumn of 2014, a series of rainfall events affected several sectors of the Liguria region, triggering many shallow landslides and causing three casualties and severe structural damages. The most intensely unstable area covered 385 km2, in which more than 1600 landslides have been identified. After these events, an airborne Light Detection and Ranging survey was carried out. The survey yielded a high-resolution digital terrain model (DTM) and aerial images that provided a means of identifying and mapping all the occurred landslides. The distribution analysis of slope instabilities highlighted the link with various human activities. In fact, the majority of the detected landslides occurred in man-modified areas. Geospatial and statistical analyses provided the identification of three main anthropic factors_ terraces, their level of maintenance and road network. Moreover, they quantified their role in landslide triggering. These factors were not analysed as separate elements, but as a continuous process, overlapping in time, in man-made influence on landscape. The identification of such factors is a key element for a correct behaviour characterization of this landscape towards extreme flash floods events.
Zglobicki W.; Poesen J.; Cohen M.; Del Monte M.; Garcia-Ruiz J.M.; Ionita I.; Niacsu L.; Machova Z.; Martin-Duque J.F.; Nadal-Romero E.; Pica A.; Rey F.; Sole-Benet A.; Stankoviansky M.; Stolz C.; Torri D.; Soms J.; Vergari F., 2017, The Potential of Permanent Gullies in Europe as Geomorphosites,
Geoheritage (Berl., Print) (2017): 1–23. doi_10.1007/s12371-017-0252-1,
DOI: 10.1007%2Fs12371-017-0252-1
Abstract
Geotourism is a useful way to educate societies in the field of geomorphology and related ...
Geotourism is a useful way to educate societies in the field of geomorphology and related natural hazards. Geosites, including geomorphosites, represent the basis for the development of this type of tourism. This study describes 12 representative gully regions within nine European countries. The characteristics of 42 permanent gullies, gully systems, and badland landscapes are presented. Based on scientific values of the sites, educational lessons to be learned were identified that are mainly related to (i) gullies as a geological window, (ii) present-day geomorphological processes and (iii) stages of historical gully erosion reflecting past human-environment interactions. To evaluate possible education activities, a geotouristic assessment of the studied gullies and badlands was made, based on scientific, educational, functional and touristic indicators. This assessment demonstrates a large difference between the selected gully and badland sites, particularly with regard to functional and tourist values. The geotouristic potential of gullies (badlands) is the highest in Italy and Spain and the lowest in Romania and Latvia. In some countries, permanent gullies are not regarded as geotouristic attractions at all, while in others, they constitute a significant element of their tourism development strategy. In our opinion, all activities must be part of a broader strategy for the development of geotourism in gully and badland regions, for example, gullies may be included as geosites within existing or planned geoparks.
Chiaudani, Alessandro and Di Curzio, Diego and Palmucci, William and Pasculli, Antonio and Polemio, Maurizio and Rusi, Sergio, 2017, Statistical and Fractal Approaches on Long Time-Series to Surface-Water,
Water (Basel) 9 (2017): 850. doi_10.3390/w9110850,
DOI: 10.3390%2Fw9110850
Abstract
In this research, univariate and bivariate statistical methods were applied to rainfall, river and piezometric ...
In this research, univariate and bivariate statistical methods were applied to rainfall, river and piezometric level datasets belonging to 24-year time series (1986-2009). These methods, which often are used to understand the effects of precipitation on rivers and karstic springs discharge, have been used to assess piezometric level response to rainfall and river level fluctuations in a porous aquifer. A rain gauge, a river level gauge and three wells, located in Central Italy along the lower Pescara River valley in correspondence of its important alluvial aquifer, provided the data. Statistical analysis has been used within a known hydrogeological framework, which has been refined by mean of a photo-interpretation and a GPS survey. Water-groundwater relationships were identified following the autocorrelation and cross-correlation analyses. Spectral analysis and mono-fractal features of time series were assessed to provide information on multi-year variability, data distributions, their fractal dimension and the distribution return time within the historical time series. The statistical-mathematical results were interpreted through fieldwork that identified distinct groundwater flowpaths within the aquifer and enabled the implementation of a conceptual model, improving the knowledge on water resources management tools.
Wrzesniak, Aleksandra; Giordan, Daniele; Allasia, Paolo, 2017, LANDMON a new integrated system for the management of landslide monitoring networks,
EGU, Vienna, 23-28/4/2017,
Abstract
Over the last decades, technological development has strongly increased the number of instruments that can ...
Over the last decades, technological development has strongly increased the number of instruments that can be used to monitor landslide phenomena. Robotized Total Stations, GB-InSAR and GPS are only few examples of the devices that can be adapted to monitor the topographic changes due to mass movements. They are often organized in a complex network, aimed at controlling physical parameters related to the evolution of landslide activity. The level of complexity of these monitoring networks increases with the number of new available monitoring devices and this could generate a paradox_ the source of data is so numerous and difficult to interpret that a full understanding of the phenomenon could be hampered. The Geohazard Monitoring Group (GMG) of Italian National Research Council (CNR) has a long experience in landslide monitoring. Over the years, GMG has developed a multidisciplinary approach for landslide management strategy called LANDMON (LANDslide MOnitoring Network). It is an automatic hybrid system focused not only on capturing and elaborating data from monitored site but also on web applications and on publishing bulletins aimed to disseminate monitoring results and to support decision makers. LANDMON is currently active in many landslide sites distributed in several areas in Italy and in Europe. LANDMON is derived from the previously developed systems like ADVICE (ADVanced dIsplaCement monitoring system for Early warning) and 3DA (three-dimensional Displacement Analysis). These systems are aimed to collect and to process monitoring dataset, to manage early warning application based on pre-defined thresholds, and to publish three-dimensional displacement maps in near real time. In addition, LANDMON integrates several new features, such as WebGIS application, modelling using inverse velocity method, and management of webcam monitoring system, meteorological parameters and borehole inclinometric data. Moreover, LANDMON is a communication strategy that focuses on dissemination of the landslide monitoring results in order to obtain a user-friendly system. In fact, this kind of results are usually very complex and they are dedicated exclusively to professionals with a proper background. This approach may be inefficient during the management of emergencies, especially when groups of non-expert people (decision and policy makers, population) are involved. For this purpose, an automatic procedure to produce a single page bulletin has been developed. The algorithm performs the analysis of complex data regarding the activity of the monitored landslide, but the results shared with end-users of LANDMON are summarized in a clear, illustrative and quickly interpretable manner. Therefore, LANDMON is a complex, complete and self-contained system, designed for efficient acquisition, analysis, representation and appropriate dissemination of the monitoring data.
Cignetti, Martina; Godone, Danilo; Giordan, Daniele, 2017, Assessment of the predisposing factors for shallow landslides activation in terraced areas_ the case of the Rupinaro catchment, Liguria (northwestern Italy).,
EGU, Vienna, 23-28/4/2017,
Abstract
The shallow landslides occurrence is strongly correlated with climatic conditions and environmental settings. In the ...
The shallow landslides occurrence is strongly correlated with climatic conditions and environmental settings. In the Liguria region (northwestern Italy), the landscape presents an ancient human intervention represented by terraces and, in the last century, by a general overbuilding, both in the few flat areas and in the steep slope hinterland. From the twentieth century, the progressive abandonment of agriculture generated a lack of maintenance of terraced areas, which associated to the urban and the road net development, supported the slope susceptibility to instability. This makes the assessment of the predisposing factors for shallow landslides a multidisciplinary task, combining natural and man-made issues. In this work, we try to define all the main predisposing factors of the Rupinaro catchment (southeast Liguria). We operate starting from a high-resolution Digital Terrain Model (DTM) supplied by an airborne LiDAR survey carried out after the autumn 2014 rainfall events. From this DTM, we mapped a total amount of 96 landslides in the study area. Then, we implemented a classification methodology based on a simple parametric score. In GIS environment we overlaid several layers_ i) lithological and hydrogeological map, ii) slope iii) aspect, iv) the land use information, available by the CORINE land cover, and iv) the presence of terraces. Each spatial data was than reclassified according a numerical code. The sum, by raster math, of these factors provided an overall score raster for the entire basin. This method allows the characterization of the entire watershed, gathering all the predisposing factors for the shallow landslides activation. A categorization of the landslides area mapped from the DTM and stored in a vector layer has been made. In particular, we estimated the most frequent code within each landslide polygon, obtaining a representative data of the most influential factors that triggered shallow landslides. The results showed the prevalent occurrence of shallow landslides in correspondence of terraced areas, cultivated by olive grove, with an impervious bedrock, and presenting gently slope and variable exposure from east/west to south. Our approach focuses on the interaction of landslides susceptibility and the land use modifications over time, with more attention over maintenance level of terraces. This methodology represents a starting point for the correct assessment of shallow landslides occurrence factors, capable to generate a susceptibility map of the entire basin, taking in account of the characteristic features of this extremely man-made territory. In order to assess the spatial connectivity of the basin and in addition to highlight the road network and the terraces role in the shallow landslides occurrence, a future comparison of the obtained data with hydrological indexes is planned.
Daniele Giordan, Furio Dutto, Paolo Allasia, Marco Baldo, Paolo Pari, Alfredo Giovanni Villa, Eugenio Topa, Michele Martino, 2017, Multilevel structure from motion application for flood damages assessment,
EGU, Vienna, 23-28/4/2017,
Abstract
The identification and the assessment of damages occurred to flooded areas is a well-known critical ...
The identification and the assessment of damages occurred to flooded areas is a well-known critical task. The use of remote sensing applications could be a solution, especially if the acquisition of images is contextual to the inundation or if it happens immediately after. The time of acquisition is important because the signs of the inundation are often transitory and they need to be collected as soon as possible. One of the most important element to be captured is the maximum water level. This information is particularly essential in built-up areas, where the amount of damages is directly linked with the level reached by the water. The use of remote sensing in urban areas is critical because of nadiral acquisition. This is not indicated for the identification of damages and water level often visible on the façade of buildings. The integration of terrestrial and aerial images of the involved areas may be a possible solution. To obtain a quantitative approach, structure from motion algorithms can be used to acquire a 3D model of building facades (from terrestrial images dataset) and orthophotos from aerial images. This approach has been applied to the areas near Turin (Piedmont region, NW ITALY) involved in the flood event occurred in December 2016. The water level reached in some places up to 1.5 meters causing significant damages. To obtain a detailed representation of the flooded area and the damages assessment three acquisitions have been performed using_ i) RPAS ii) terrestrial camera iii) plane. Integrating all of these sources of data allows_ i) the identification of damages using ultra high resolution images over small areas (RPAS) ii) the identification of the water level on façades iii) a medium resolution orthophoto over a wider area to define flood event limit. The presented application represents the first step of the development of a methodology that could be considered very useful for the evaluation of the water level reached during an inundation but also a possibility for the acquisition of an important dataset in areas involved in natural disasters.
Janusz Wasowski, Daniele Giordan, Piernicola Lollino, 2017, Engineering Geology and Geological Engineering for Sustainable Use of the Earth’s Resources, Urbanization and Infrastructure Protection from Geohazards,
Switzerland: Springer International Publishing, 2017,
Abstract
Proceedings of the 1st GeoMEast International Congress and Exhibition, Egypt 2017 on Sustainable Civil Infrastructures ...
Proceedings of the 1st GeoMEast International Congress and Exhibition, Egypt 2017 on Sustainable Civil Infrastructures
Daniele Giordan, Martina Cignetti, Davide Bertolo, 2017, The Use of Morpho-Structural Domains for the Characterization of Deep-Seated Gravitational Slope Deformations in Valle d’Aosta,
IV World landslide forum, pp. 59–68, 29/5/2017,2/6/2017,
Abstract
Deep-seated Gravitational Slope Deformations (DsGSDs) are widespread phenomena in mountain regions. In the Valle d'Aosta ...
Deep-seated Gravitational Slope Deformations (DsGSDs) are widespread phenomena in mountain regions. In the Valle d'Aosta alpine region of northern Italy, DsGSDs occupy 13.5% of the entire regional territory. A total of 280 phenomena have been inventoried in the IFFI (Italian Landslide Inventory) project. These large slope instabilities often affect urbanized areas and strategic infrastructure and may involve entire valley flanks. The presence of settlements on DsGSDs has led the regional Geological Survey to assess the possible effects of these phenomena on human activities. This study is aimed at implementing a methodology that is based on interpreting Synthetic Aperture Radar (SAR) data for recognizing the most active sectors of these phenomena. Starting from the available RADARSAT-1 dataset, we attempt to propose a methodology for the identification of the main morpho-structural domains that characterize these huge phenomena and the definition of different sectors that make up the DsGSDs, which are characterized by different levels of activity. This subdivision is important for linking the different kinematic domains within DsGSDs with the level of attention that should be given to them in the studies that support the request for authorization of new infrastructure. We apply this method to three case studies that represent significant phenomena involving urban areas within the Valle d'Aosta region. In particular, we analyze study areas containing the Cime Bianche DsGSD, the Valtourenenche DsGSD, and the Quart DsGSD. These phenomena have different levels of evolution that are controlled by the interaction of diverse factors, and involve buildings and other infrastructure. This setting has been useful for testing the development of the methodology, which takes advantage of remote-sensing investigations, together with the local geological, geomorphological and structural setting
Spilotro, Giuseppe; Pellicani, Roberta; Canora, Filomena; Allasia, Paolo; Giordan, Daniele; Lollino, Giorgio, 2017, Evolution of techniques for monitoring unstable slopes,
Italian journal of engineering geology and environment (Testo stamp.) 17 (2017): 5–17. doi_10.4408/71JEGE2017-01.O-01,
DOI: 10.4408%2F71JEGE2017-01.O-01
Abstract
The monitoring of unstable or potentially unstable areas is a necessary operation every time you ...
The monitoring of unstable or potentially unstable areas is a necessary operation every time you cannot remove the conditions of risk. So, in these cases landslide monitoring represents a very crucial mitigation operation, that is usually done by using conventional investigation devices. Generally, traditional landslide monitoring technologies, such as inclinometers, extensometers. LVDT and TDR based instrumentations, permit to define, if correctly positioned and with adequate accuracy, the critical values of displacement and/or acceleration into landslide body. In most cases, they do not allow real time warning signs to be generated, due to environmental induced errors. Remote-sensing monitoring instruments, such as 3D laser scanner, LIDAR and InSAR, are capable of inspecting an unstable slope with a high spatial and temporal frequency, but allow solely measurements of superficial displacements and deformations. The technological evolution exportable to the field of land instability monitoring is particularly hvely and allows the use of warning systems unthinkable just few years ago.
Giordan, D.; Manconi, A.; Remondino, F.; Nex, F., 2017, Use of unmanned aerial vehicles in monitoring application and management of natural hazards,
Geomatics, natural hazards & risk (Print) 8 (2017): 1–4. doi_10.1080/19475705.2017.1315619,
DOI: 10.1080%2F19475705.2017.1315619
Abstract
The recent development of unmanned aerial vehicles (UAVs) has been increasing the number of technical ...
The recent development of unmanned aerial vehicles (UAVs) has been increasing the number of technical solutions that can be used to monitor and map the effects of natural hazards. UAVs are generally cheaper and more versatile than traditional remote-sensing techniques, and they can be therefore considered as a good alternative for the acquisition of imagery and other physical parameters before, during and after a natural hazard event. This is an important added value especially for investigations over small areas (few km(2)). In the special issue The use of Unmanned Aerial Vehicles in monitoring application and management of natural hazards', we collected a number of case studies, aiming at providing a range of applications of monitoring and management of natural hazards assessed through the use of UAVs.
Tannant, D. D.; Giordan, D.; Morgenroth, J., 2017, Characterization and analysis of a translational rockslide on a stepped-planar slip surface,
Engineering geology 220 (2017): 144–151. doi_10.1016/j.enggeo.2017.02.004,
DOI: 10.1016%2Fj.enggeo.2017.02.004
Abstract
In 2014 a small stepped-planar rockslide blocked a road near the town of San Germano ...
In 2014 a small stepped-planar rockslide blocked a road near the town of San Germano Chisone in northwest Italy. Photographs of the rock cut that failed above the road were taken before and after the rockslide occurred. Some photos were acquired with the assistance of a UAV. These photos were used to conduct a forensic analysis of the rockslide. With the aid of photogrammetry software, it was possible to characterize the slope geometry and the larger geological structures that influenced the slope behaviour. A stepped-planar slip surface and the shape of the slabs of rock that failed were defined by discontinuities and these were well documented in the 3D photogrammetry models. The effective dilation angle was estimated from an assessment of the roughness of the discontinuity surfaces forming the slip surface. The stability of the rockslide was analysed as a stepped translational failure mechanism. A two-block force equilibrium model of the rockslide was developed. With this analytic model, both deterministic and probabilistic methods were used to study the influence of water pressure as well as time-dependent shear strength degradation along the discontinuities and corrosion of rockbolts. The analysis suggests that the rockslide was caused by a combination of inadequate rock support, time-dependent shear strength degradation, and water pressure in the joints resulting from above average rainfall. (C) 2017 Elsevier B.V. All rights reserved.
Gullà G., L. Aceto, L. Borrelli, M. Mercuri, E. Valente, S. Guardia, 2017, Rapporti di prova (numero 228 – Novembre 2017),
2017,
Abstract
Rapporti di prova (numero 228 - Novembre 2017) ...
Rapporti di prova (numero 228 - Novembre 2017)
Gullà G., L. Aceto, E. Valente, S. Guardia, 2017, Rapporti di prova (numero 120 – Aprile 2017),
2017,
Abstract
Rapporti di prova (numero 120 - Aprile 2017) ...
Rapporti di prova (numero 120 - Aprile 2017)
Gullà G., L. Aceto, 2017, Prima Relazione Ordinaria – Consistenza e condizioni di funzionamento della Rete Integrata di Monitoraggio acquisita dal Comune di Maierato,
2017,
Abstract
Consistenza e condizioni di funzionamento della Rete Integrata di Monitoraggio acquisita dal Comune di Maierato ...
Consistenza e condizioni di funzionamento della Rete Integrata di Monitoraggio acquisita dal Comune di Maierato
Nicodemo G., Peduto D., Ferlisi S., Gullà G., Borrelli L., Fornaro G., Reale D., 2017, Analysis of building vulnerability to slow-moving landslides via DInSAR and damage survey data,
Proceedings of the 4th World Landslide Forum - WLF 2017 - Advancing Culture of Living with Landslides, pp. 899–907, Ljubljana, Slovenia, May 29 - June 02, 2017,
Abstract
The paper presents a procedure for the analysis of building vulnerability to slow-moving landslides via ...
The paper presents a procedure for the analysis of building vulnerability to slow-moving landslides via A-DInSAR and damage survey data. For this purpose, a test site in Calabria region (southern Italy) affected by slow-moving landslides, which over the time caused severe damage to buildings, was selected. The availability of remote sensing data such as those derived from the processing of Synthetic Aperture Radar images via Advanced
Differential Interferometry techniques (A-DInSAR) and information concerning damage severity suffered by the facilities, collected by in situ damage surveys, allowed investigating the cause (differential settlement)--effect (damage) relationship. Then, empirical fragility curves for both reinforced concrete and masonry buildings were generated. These latter, once further validated, can be valuably used for damage analysis and forecasting purposes and framed within procedures for risk analysis and management over urban landslide-affected areas.
Borrelli L.; Muto F., 2017, Geology and mass movements of the licetto river catchment (Calabrian coastal range, southern Italy),
Journal of maps 13 (2017): 588–599. doi_10.1080/17445647.2017.1342283,
DOI: 10.1080%2F17445647.2017.1342283
Abstract
The paper presents a detailed mass movement inventory map of the Licetto River basin, an ...
The paper presents a detailed mass movement inventory map of the Licetto River basin, an intermountain catchment of 50 km2 formed during the Quaternary in response to extensional tectonics dissecting fold-and-thrust belts of the Calabrian Coastal Range (Southern Italy). The map (Main Map) is the result of both an integration between geological and morphological data derived from the visual analysis of aerial photographs at different times and scales, and the collection of new data obtained from multi-temporal field surveys. The study area is affected by a total of 824 mass movements, frequently made by superimposed bodies of different types, states of activity and sizes, including some kilometre-scale Deep-Seated Gravitational Slope. The majority of the mapped landslides, mainly of slide type, involve low-grade metamorphic rocks which also show the exclusive presence of deep-seated gravitational slope deformations. Analysis of the inventory map revealed that 40% of the mapped landslides, often attributable to very slow-moving landslides, can be considered active. The Main Map represents a useful tool for territorial planning and engineering - geological and environmental purposes in this complex geo-structural area, providing a useful contribution for quantitative landslide risk analyses and the design of appropriate risk-mitigation measures.
Trizzino, Rosamaria, 2017, Doc 01 94 03397 – CAMERA DEI DEPUTATI,
2017,
Abstract
Biblioteca della Camera deri Deputati; PERIOD.A. 3177 BUSTA 986; ID_ 126972;
Soggetto_ MISURAZIONI GEOMORFOLOGICHE MEDIANTE ...
Biblioteca della Camera deri Deputati; PERIOD.A. 3177 BUSTA 986; ID_ 126972;
Soggetto_ MISURAZIONI GEOMORFOLOGICHE MEDIANTE SATELLITE;
Classificazione_ T.8.0.5 - GEOMORFOLOGIA -
D.9.4.6.0 - VEICOLO SPAZIALE-SATELLITE ARTIFICIALE (DIRITTO INTERNAZIONALE)
Borrelli, Luigi; Gullà, Giovanni, 2017, Tectonic constraints on a deep-seated rock slide in weathered crystalline rocks,
Geomorphology (Amst.) 290 (2017): 288–316. doi_10.1016/j.geomorph.2017.04.025,
DOI: 10.1016%2Fj.geomorph.2017.04.025
Abstract
Deep-seated rock slides (DSRSs), recognised as one of the most important mass wasting processes worldwide, ...
Deep-seated rock slides (DSRSs), recognised as one of the most important mass wasting processes worldwide, involve large areas and cause several consequences in terms of environmental and economic damage; they result from a complex of controlling features and processes. DSRSs are common in Calabria (southern Italy) where the complex geo-structural setting plays a key role in controlling the geometry of the failure surface and its development. This paper describes an integrated multi-disciplinary approach to investigate a DSRS in Palaeozoic high-grade metamorphic rocks of the Sila Massif; it focuses on the definition of the internal structure and the predisposing factors of the Serra di Buda landslide near the town of Acri, which is a paradigm for numerous landslides in this area. An integrated interdisciplinary study based on geological, structural, and geomorphological investigations--including field observations of weathering grade of rocks, minero-petrographic characterisations, geotechnical investigations and, in particular, fifteen years of displacement monitoring--is presented. Stereoscopic analysis of aerial photographs and field observations indicate that the Serra di Buda landslide consists of two distinct compounded bodies_ (i) an older and dormant body (~ 7 ha) and (ii) a more recent and active body (~ 13 ha) that overlies the previous one. The active landslide shows movement linked to a deep-seated translational rock slide (block slide); the velocity scale ranges from slow (1.6 m/year during paroxysmal stages) to extremely slow (< 16 mm/year during stable creep stages). The geological structures and rock weathering have played a key role in the landslide's initiation and further development. Steep slope angles, rugged topography, river deepening and erosion at the toe of the slope are also responsible for the formation of this landslide. In particular, the landslide shows a strongly tectonic constraint_ the flanks are bounded by high-angle faults, and the main basal failure surface developed inside an E-W southward-dipping thrust fault zone. The entire active rock mass (total volume of approximately 6 Mm3) slid at one time on a failure surface that dipped < 27°, and the maximum depth, as determined by inclinometer measurements, was approximately 58 m. Petrographic and mineralogical analyses suggest that the rocks in the thrust zones, where the failure surfaces develop, are highly affected by weathering processes that significantly reduce the rock strength and facilitate the extensive failure of the Serra di Buda landslide. Finally, the landslide's internal structure, according to geotechnical investigations and displacement monitoring, is proposed. The proposed approach and the obtained results can be generalised to typify other deep landslides in similar geological settings.
Gullà G., Ferlisi S., Nicodemo G., Peduto D., 2017, Un approccio metodologico per la gestione del rischio in aree urbane affette da frane a cinematica lenta,
XXVI Convegno Nazionale di Geotecnica - La Geotecnica nella Conservazione e la Tutela del Patrimonio Costruito, pp. 595–603, Roma, 20-22 giugno 2017,
Abstract
Numerosi insediamenti urbani sono localizzati in aree del territorio nazionale affette da frane a cinematica ...
Numerosi insediamenti urbani sono localizzati in aree del territorio nazionale affette da frane a cinematica lenta le quali, sebbene si associno a livelli di rischio non elevati per la vita umana, possono causare danni crescenti a strutture ed infrastrutture in funzione dell'intensità degli stessi fenomeni. In tali contesti, il progressivo degrado che ne consegue determina un incremento generalizzato della vulnerabilità del costruito e il rischio da frane a cinematica lenta aumenta nel tempo, a parità di pericolosità dei fenomeni. Nelle condizioni evidenziate, in assenza di adeguati interventi di mitigazione e dopo un intervallo di tempo non noto a priori, il livello di rischio (anche nei riguardi di terremoti di assegnata magnitudo) potrebbe non essere più accettabile.
Il problema richiamato risulta di particolare impatto economico-sociale e impone l'adozione di opportune strategie per la gestione del rischio che siano efficaci e, al contempo, sostenibili da parte delle comunità interessate.
Nella memoria, facendo riferimento a casi di studio della Regione Calabria, si propone un approccio metodologico multi-scalare basato sul monitoraggio satellitare degli spostamenti in aree urbane affette da frane a cinematica lenta e sulla valutazione speditiva della severità del danno al patrimonio edilizio, per definire strategie di gestione del rischio che contemplino la programmazione di interventi di mitigazione efficaci e sostenibili.
Nicodemo G., Peduto D., Ferlisi S., Gullà G., 2017, Curve empiriche di fragilità e di vulnerabilità di edifici in un’area della Regione Calabria affetta da frane a cinematica lenta,
IARG2017-Incontro Annuale dei Ricercatori di Geotecnica, Matera, 05-07/07/2017,
Abstract
La presente comunicazione presenta una metodologia che, seguendo un approccio di tipo empirico basato sull'utilizzo ...
La presente comunicazione presenta una metodologia che, seguendo un approccio di tipo empirico basato sull'utilizzo combinato di dati DInSAR e di informazioni sul danno a edifici acquisite da rilievi in sito, conduce alla generazione di potenti strumenti di analisi e previsione quali le curve di fragilità e di vulnerabilità. Lo studio è condotto in un'area urbana dell'Appennino calabrese sistematicamente affetta da frane a cinematica lenta che hanno prodotto nel tempo un notevole stato di dissesto a strutture e infrastrutture. Le curve ottenute, laddove ulteriormente calibrate e successivamente validate, possono essere utilmente adottate per l'implementazione di strategie volte ad un'oculata gestione e salvaguardia del patrimonio edilizio.
Tripodi V., Biondino D., Muto F., Borrelli L. Perri F., Spezzano L., Gullà G., Critelli S., 2017, Un modello geologico tridimensionale per una conoscenza quantitativa del territorio. Esempi in Calabria,
Tecniche per la difesa del suolo e dall'inquinamento - 38° Edizione, pp. 489–511, Guardia Piemontese, 21-24 Giugno 2017,
Abstract
La salvaguardia del territorio è un punto cardine per sviluppo sostenibile, e risulta
di fondamentale importanza ...
La salvaguardia del territorio è un punto cardine per sviluppo sostenibile, e risulta
di fondamentale importanza adottare una politica che miri alla riduzione dei rischi naturali,
poiché la loro pericolosità compromette, in maniera più o meno intensa, la vita umana, i beni
e le risorse economiche, l?ambiente.
I rischi geologici, com?è noto, interessano in maniera profonda il territorio calabrese, sia per il
ruolo geodinamico fondamentale della Calabria nell'ambito del Mediterraneo, elemento di raccordo
tra la catena siciliano-magrebide e la catena appenninica, sia per le modifiche naturali che
si mettono in atto in questa area geologicamente giovane.
La storia geologica della Calabria, sin dalla sua strutturazione, ha fatto si che questa terra nel
tempo acquisisse un'estrema fragilità derivante dai suoi caratteri geologici, geomorfologici e
strutturali.
Gli ammassi rocciosi calabresi, costituiti per la maggior parte da rocce di natura cristallina pertanto
maggiormente soggette ai processi alterativi, si mostrano estremamente fratturati e/o degradati
con caratteristiche geotecniche scadenti, a cui si associa una vulnerabilità infrastrutturale
tra le più alte di Italia.
La complessità geologica intrinseca della Calabria congiuntamente all'uso inappropriato del territorio,
per lungo tempo trascurato e violentato, mostra conseguenze disastrose in termini di
esposizione al rischio. I rischi di rilevanza e gravità ingenti che espongono popolazioni e territorio
calabresi fanno riferimento ad una molteplicità di fenomeni naturali_ terremoto e/o tsunami,
frane e smottamenti, alluvioni, erosione costiera, ecc.
Se si guarda al passato, i fenomeni sismici verificatisi in Calabria sono tra i più catastrofici
dell'area mediterranea, ricordiamo il terremoto del 1638 nel settore centro-settentrionale e il terremoto
che nel 1905-1908, con una serie di violente scosse, colpi gran parte della regione.
In termini di rischio idrogeologico la storia dell'ultimo ventennio calabro mostra eventi importanti,
talvolta comprendenti porzioni estese di territorio (Soverato settembre 2000, Serre Vibonesi
2003, Cerzeto 2005, Vibo Valentia luglio 2006, intero territorio regionale autunno inverno
2009-2010, versante ionico reggino novembre 2015). L'intensità dei fenomeni di dissesto idrogeologico,
connessi e acuiti da fenomeni atmosferici estremi legati ai cambiamenti climatici in
atto, rappresentano importanti sorgenti di alterazione ambientale con conseguenze potenzialmente
molto gravi in termini di ambiente, economia e vite umane.
Le varie tipologie di eventi, coprono estensioni territoriali con scale spaziali comprese in intervalli
molto diversificati, mentre la loro natura fenomenologica è intrinsecamente caratterizzata
da notevole complessità ed instabilità temporale, con un comportamento fortemente dinamico
ed un'evoluzione altrettanto variabile.
Al fine di realizzare una corretta pianificazione e governo del territorio è necessario che si conoscano
le caratteristiche intrinseche dell'evento (occorrenza, intensità, frequenza, durata), tali caratteristiche
possono essere conosciute solo attraverso un attento studio ad ampio spettro. In
questa prospettiva si inserisce il presente lavoro che propone, attraverso un caso studio di
un'area del versante occidentale del Massiccio della Sila (San Pietro in Guarano), una metodologia
di indagine che potrebbe fungere da linea guida in contesti geologici aventi le stesse caratteristiche.
Rosamaria Trizzino , Mauro Caprioli , Francesco Mazzone , Mario Scarano, 2017, Applications of UAV Photogrammetric Surveys to Natural Hazard Detection and Cultural Heritage Documentation,
Geophisycal Research Abstract EGU General Assembly vol. 19 (2017).,
Abstract
Unmanned Aerial Vehicle (UAV) systems are increasingly seen as an attractive low-cost alternative or supplement ...
Unmanned Aerial Vehicle (UAV) systems are increasingly seen as an attractive low-cost alternative or supplement to aerial and terrestrial photogrammetry due to their low cost, flexibility, availability and readiness for duty. In addition, UAVs can be operated in hazardous or temporarily inaccessible locations. The combination of photogrammetric aerial and terrestrial recording methods using a mini UAV (also known as "drone") opens a
broad range of applications, such as surveillance and monitoring of the environment and infrastructural assets.
In particular, these methods and techniques are of paramount interest for the documentation of cultural heritage sites and areas of natural importance, facing threats from natural deterioration and hazards. In order to verify the reliability of these technologies an UAV survey and a LIDAR survey have been carried out along about 1 km of coast in the Salento peninsula, near the towns of San Foca, Torre dell' Orso and SantAndrea ( Lecce, Southern Italy). This area is affected by serious environmental hazards due to the presence of dangerous rocky cliffs named "falesie". The UAV platform was equipped with a photogrammetric measurement system that allowed us to obtain a mobile mapping of the fractured fronts of dangerous rocky cliffs. UAV-images data have been processed using dedicated software (Agisoft Photoscan). The point clouds obtained from both the UAV and LIDAR surveys have been processed using Cloud Compare software, with the aim of testing the UAV results with respect to the LIDAR ones. The analysis were done using the C2C algorithm which provides good results in terms of Euclidian distances, highlighting differences between the 3D models obtained from both the survey techiques. The total error obtained was of centimeter-order that is a very satisfactory result.
In the the 2nd study area, the opportunities of obtaining more detailed documentation of cultural goods throughout UAV survey have been investigated. The study area is an ancient Aragonese watchtower of the seventeenth century, located near the Abbey of San Vito in the countryside of Polignano a Mare (in the province of Bari, Southern Italy). The survey has been carried out with an "esacopter" equipped with a CANON EOS 550D. The image processing was carried out with Photogrammetric and Structure from Motion software (Agisoft PhotoScan) and, as a result, a cloud of 524.607 points with a 0.010096 m/pix resolution was obtained starting from 330 nadiral and inclined images. In order to verify the suitability of this technique we carried out also a terrestrial photogrammetric survey using three different photographic media, a reflex camera with integrated GPS, a compact digital camera and a camera of a smartphone. Three data set of image have been obtained and then compared. In conclusion, it is possible to say that the peculiarity of the RPAS photogrammetric survey allowed highlighting some peculiariar features of the tower, such as the presence of a trapdoor and of a chimney at the roof level, not detectable with a terrestrial survey, that could provide essential elements in order to execute restoration works aimed at the recovery of the cultural heritage.
Giovanni Gullà, 2017, Problemi, soluzioni e temi di ricerca per l’adattamento, la mitigazione e la riduzione del rischio,
pp.15–23, 2017,
Abstract
La nota riassume quanto presentato nei "Seminari
Operativi" di "Calabria Sicura" del 24 ottobre 2016. In ...
La nota riassume quanto presentato nei "Seminari
Operativi" di "Calabria Sicura" del 24 ottobre 2016. In particolare,
assumendo come riferimento le proposte portate dal CNR-IRPI al
tavolo tecnico sul "Rischio idrogeologico" e considerando le
connessioni dei tre tavoli tecnici, sono evidenziate le specificità e le
sinergie delle soluzioni proposte e segnalati alcuni temi di ricerca utili
per migliorarle e per mantenerle efficaci nel tempo.
Giovanni Gullà, 2017, Filiera per l’adattamento, la mitigazione e la riduzione del rischio determinato da eventi di dissesto idrogeologico e interventi sostenibili,
edited by Graniti, A., Manelli, E., Marino, G., Mottana, A., Porceddu, E., Setti, G., pp. 99–124. Roma_ Accademia Nazionale delle Scienze detta dei XL, 2017,
Abstract
La nota propone un contributo per la definizione di una filiera per avviare,
mantenere e migliorare ...
La nota propone un contributo per la definizione di una filiera per avviare,
mantenere e migliorare un percorso metodologico cui concorrono competenze e strumenti,
di varie discipline, per sviluppare, utilizzare e approfondire conoscenze, metodi, procedure
e tecnologie per l'adattamento, la mitigazione e la riduzione del rischio prodotto da eventi di
dissesto idrogeologico.
Peduto D.; Ferlisi S.; Nicodemo G.; Reale D.; Pisciotta G.; Gullà G., 2017, Empirical fragility and vulnerability curves for buildings exposed to slow-moving landslides at medium and large scales,
Landslides (Berl., Print) (2017): 1–15. doi_10.1007/s10346-017-0826-7,
DOI: 10.1007%2Fs10346-017-0826-7
Abstract
Slow-moving landslides yearly induce huge economic losses worldwide in terms of damage to facilities and ...
Slow-moving landslides yearly induce huge economic losses worldwide in terms of damage to facilities and interruption of human activities. Within the landslide risk management framework, the consequence analysis is a key step entailing procedures mainly based on identifying and quantifying the exposed elements, defining an intensity criterion and assessing the expected losses. This paper presents a two-scale (medium and large) procedure for vulnerability assessment of buildings located in areas affected by slow-moving landslides. Their intensity derives from Differential Interferometric Synthetic Aperture Radar (DInSAR) satellite data analysis, which in the last decade proved to be capable of providing cost-effective long-term displacement archives. The analyses carried out on two study areas of southern Italy (one per each of the addressed scales) lead to the generation, as an absolute novelty, of both empirical fragility and vulnerability curves for buildings in slow-moving landslide-affected areas. These curves, once further validated, can be valuably used as tools for consequence forecasting purposes and, more in general, for planning the most suitable slow-moving landslide risk mitigation strategies.
Frigerio, Simone; Bianchizza, Chiara; Schenato, Luca; Del Bianco, Daniele, 2017, A mobile application to engage citizens and volunteers. Crowdsourcing within natural hazard,
Rendiconti online Società Geologica Italiana 42 (2017): 70–72. doi_10.3301/ROL.2017.17,
DOI: 10.3301%2FROL.2017.17
Abstract
Responsibility in civil protection from central to local authorities is a changing pattern in natural ...
Responsibility in civil protection from central to local authorities is a changing pattern in natural hazard management. Prevention and preparedness are long-term goals, based on competence of trained volunteers and on awareness of the local citizens. MAppERS Project(1) (Mobile Application for Emergency Response and Support) involves people as crowd-sources rendering through mobile application design integrated to a dashboard. Testing and training courses for public citizens and volunteers of civil protection in two pilot study cases obtain feedback fundamental to raise participation in the disaster network response, towards modules, usability and quality of the product. A synchronized platform reveals advantages of cloud data architecture with a web dashboard. A first module of the application focuses on flood processes gathering real-time data from local population and contributes to personal awareness, while the second module tests pre-emergency actions on field with rescue crews, collecting details and priority of hazards.
SIMONE FRIGERIO, LUCA SCHENATO, GIULIA BOSSI, MATTEO MANTOVANI, GIANLUCA MARCATO, STEFANO CREMA, MARCO CAVALLI, ALESSANDRO PASUTO, 2017, MAppERS: mobile networks for prevention and awareness. Communication scheme and architecture,
XII CONVEGNO NAZIONALE GIT - Geosciences and Information Technologies, Gavorrano (GR), 12-14 Giugno 2017,
Abstract
Natural processes responsibilities from central authorities to local levels as first actors is a changing ...
Natural processes responsibilities from central authorities to local levels as first actors is a changing pattern of civil protection. Prevention and preparedness in natural hazards are long-term goals based on capacities of professional volunteers, and improving the awareness of the citizens as local inhabitants. Local people have impacts on their lives but training and involvement towards specific techniques change their role within risk communication and emergency preparedness. A collaborative user environment is useful for emergency response and support in the wake of disasters, feeding updated information on the ground directly to on-site responders. MAppERS App is based on human role as "crowd-sourced mappers" through mobile able to share GPS-localised and detailed parameters. The feedback from testing and the training courses aim to raising public awareness and participation in a networked disaster response. The project implies design and test of smart phone linked with a real-time dashboard platform for rescue services citizens and volunteers of civil protection. Two pilot sites, including trainings on modules functioning control usability and quality of the product. The synchronized platform offers the activity of cloud data collection with a central data dashboard. Information is collected in a context of floods processes, with crowdsourcing action from local population, for proper awareness with own personal flood plan and long-term preparedness. A second context tested pre-emergency actions on field with rescue team, collecting state-of-art and condition of hazards.
Simone Frigerio, Luca Schenato , Giulia Bossi , Matteo Mantovani , Stefano Crema , Marco Cavalli , Gianluca
Marcato , and Alessandro Pasuto, 2017, Crowdsourcing engagement and applications for communities within crisis events,
European Geosciences Union General Assembly 2017, Vienna | Austria, 23-28 April 2017,
Abstract
Civil protection attitude is a changing pattern within natural hazards, deploying responsibilities from central government
to ...
Civil protection attitude is a changing pattern within natural hazards, deploying responsibilities from central government
to local authorities. The competence of volunteers and the awareness and involvement of local inhabitants
are key points for prevention and preparedness. Citizens and volunteers become first actors of civil protection,
toward context-specific strategies of surveillance and territorial surveys. The crowd-mapping technology includes
a mobile solution tested insight trained communities, as participation within disaster response. The platform includes
also a user-friendly dashboard for data gathering and analysis in multi-hazard realities, tested with pilot case
studies. Usability and gradual innovation of platform are continuous granted by cloud dataset and bugfixing controls.
The first module focuses on flood processes gathering data from local and trained population, for awareness
and long-term preparedness. The second module integrates field survey of several volunteers within rescue squads,
combining geolocations and comparing dataset collected in pre-emergency steps in urban case studies. The results
include an easy-to-use data interface for crisis management, a tested support within crisis combined with personal
awareness, continuously updated and customized. The development provides a version for Android 4.0 onward, the
web application combines a cloud architecture with a relational database and web services, integrated with SDK
cloud notification. The wireframes planned two accesses for a Citizens Kit and a Volunteers Kit, synchronized with
a common dashboard. The follow up includes the integration between mobile solutions with sensors for dynamic
update and data export for GIS analysis. The location-based services uses location data to monitor parameters and
control features within natural hazard. A human sensor network is the aim, integrating sensor measurements with
external observation as baseline of future modelling. Point data like humidity, temperature and pressure are geolocated
and real-time. Human sensors reveal a massive approach of crowdsourcing, and user-friendly dashboards
appears as solid control of data management to support resilience and quality of risk assessment.
F. Cotecchia, P. Lollino, F. Palmisano, F. Santaloia, C. Vitone, 2017, Valutazione del danno da frana per l’analisi di vulnerabilità in un’area urbana del subappennino dauno,
tti del XXVI Convegno Nazionale di Geotecnica - La geotecnica nella conservazione e tutela del patrimonio costruito., Roma, 20-22 Giugno 2017,
Abstract
La valutazione del rischio da frana rappresenta un tema di crescente interesse a causa del ...
La valutazione del rischio da frana rappresenta un tema di crescente interesse a causa del condizionamento dei processi franosi sullo sviluppo socio-economico dei centri urbani e sulle possibilità di conservazione del patrimonio storico-culturale. Con riferimento alle frane a cinematica lenta, le valutazioni di rischio di tipo quantitativo riguardano aspetti prevalentemente connessi alla suscettibilità o, in alcuni casi, alla pericolosità, limitando invece gli studi sulla vulnerabilità strutturale ad analisi di natura pressoché qualitativa. Questo contributo indaga gli effetti dell'interazione tra una classe di frane a cinematica lenta ed il patrimonio costruito sovrastante. Si presentano i risultati dell'applicazione di una metodologia multilivello per l'analisi di vulnerabilità alla scala del centro urbano. L'area di applicazione corrisponde ad un territorio urbanizzato dell'Appennino Dauno ove affiorano successioni torbiditiche tettonizzate. I risultati delle analisi geomorfologiche, geotecniche e strutturali sono confluiti nella 'carta geotecnica del danneggiamento da frana', strumento di supporto per l'analisi di vulnerabilità in aree franose.
Pagliarulo R., 2017, WP8 – Report Semestrale -DEFINIZIONE DI PROCEDURE METODOLOGICHE PER L’ANALISI DELL’INSTABILITA’ COSTIERA-,
2017,
Abstract
Nell'ambito delle attività di studio del WP8 sono stati effettuati diversi sopralluoghi sia lungo la ...
Nell'ambito delle attività di studio del WP8 sono stati effettuati diversi sopralluoghi sia lungo la costa garganica che quella salentina adriatica al fine di selezionare i due siti da monitorare. . Nell'intento di definire le procedure metodologiche dell'instabilità costiera, oggetto del presente WP 8, si è proceduto ad un primo screening sulle tipologie costiere presenti nella regione e quindi ad una prima suddivisione tra coste rocciose e coste sabbiose. Nell'ambito delle coste rocciose e quindi più suscettibili ai fini della pericolosità di frana si stanno individuando quelle prevalenti e cioè quelle in costa rocciosa bassa e le coste digradanti.
Casazza M.; Maraga F.; Liu G.; Lega M.; Turconi L.; Ulgiati S., 2017, River water quality and its relation with air quality_ A long-term case study in a remote and pristine NW Italian headwater catchment,
Journal of Environmental Accounting and Management L&H 5 (2017): 35–47. doi_10.5890/JEAM.2017.03.004,
DOI: 10.5890%2FJEAM.2017.03.004
Abstract
This paper analyses the water quality characteristics of a remote and pristine basin, the Gallina ...
This paper analyses the water quality characteristics of a remote and pristine basin, the Gallina small catchment, located in the Piemonte Region (NW Italy). In particular, the ion content of river water and precipitation are assessed for two distinct periods (October-December of years 1992 and 2011). These time frames are characterized by a change of air quality management rules for the study area which came into force after year 2000. Furthermore, late Autumn months, which are considered in this study, are characterized by a peak of recorded precipitations in the area under study. Moreover, this is a period of the year where atmospheric emission intensity and distribution are greater with respect to Spring and Summer. The chemical nature of the monitored water body was assessed through the use of Piper diagram. Research found evidence of erosional processes, which chemically altered the water compared to the quality of precipitation. The signature of air chemistry was also evident, through a shift to less sulphate, after the change of air quality regulations introduced in year 2000. The presence of marine ions, in case of major weather perturbations, typical of the late Autumn in the monitored area, was recorded. This fact was particularly evident for the month of November 2011, in association to a major flooding event occurred in the Piemonte Region. The presence of a minor ionic component, associated to rainfall waters, depending upon soil particle resuspension and transport was also detected. Finally, the prevailing origin of the measured ions was defined. The results show the importance of improved management actions, which should be taken in order to further reduce the trans-boundary atmospheric pollution, which constitutes a threat to water quality and a further element of indirect water pollution transfer across different areas.
Pagliarulo R., 2017, The Apulian region and coastal instability problems,
, pp. 94–96, 2017,
Abstract
A brief reconstruction of the paleogeographic evolution of Central Mediterranean area has been described to ...
A brief reconstruction of the paleogeographic evolution of Central Mediterranean area has been described to focus the attention to the Southern Apennines thrust belt. The Central Mediterranean area is a complicated puzzle from the point of view of plate tectonics. The instability processes affecting the Apulian coastal areas and the related hazard have been discussed with special reference to the rocky coasts. The rocky cliffs are affected by erosional processes, which are worsened by complex mechanisms of interaction between the gravitational forces and the sea actions, leading to coastal retreats.
Codeglia, Daniela; Dixon, Neil; Bossi, Giulia; Marcato, Gianluca, 2017, Alpine landslide risk scenario_ run-out modelling using a 3D approach,
Rendiconti online Società Geologica Italiana 42 (2017): 14–17. doi_10.3301/ROL.2017.03,
DOI: 10.3301%2FROL.2017.03
Abstract
Rockslides of considerable volume developing on the flanks of narrow alpine valleys represent a significant ...
Rockslides of considerable volume developing on the flanks of narrow alpine valleys represent a significant hazard for the potential of river damming and consequent sudden discharge of water. A limestone rock mass of about 650,000 m(3) endangers a portion of the upper course of Tagliamento River valley in north-eastern Italy. This section of the valley is prone to detachment of rock landslides due to its structural setting and it has a history of landslide damming_ in the literature two huge events are widely documented and a third event is identified and described in this paper. The ancient detachment crown and the corresponding deposit can be observed in the portion of slope adjacent to the unstable rock mass. This paper deals with the run-out model of the unstable rock mass using a Smoothed Particles Hydrodynamics (SPH) model implemented in the DAN3D code. In order to select the appropriate material parameters, the ancient rockslide was back-analysed. Subsequently, the parameters were applied to the present unstable portion of the slope to determine the location and dimensions of the deposit that could be formed. It is demonstrated that the deposit has the potential to create a natural dam across the Tagliamento River that would form a 500,000 m(3) lake. Although the lake will have limited dimensions, this would represent a very high risk for the downstream villages and infrastructures in case of a sudden collapse of the natural dam.
Olga Petrucci, Tommaso Caloiero, Angela Aurora Pasqua, Piero Perrotta, Luigi Russo, Carlo Tansi, 2017, Civil protection and Damaging Hydrogeological Events_ comparative analysis of the 2000 and 2015 events in Calabria (southern Italy),
Advances in geosciences (Print) 44 (2017): 101–113. doi_10.5194/adgeo-44-101-2017,
DOI: 10.5194%2Fadgeo-44-101-2017
Abstract
Calabria (southern Italy) is a flood prone region,
due to both its rough orography and fast ...
Calabria (southern Italy) is a flood prone region,
due to both its rough orography and fast hydrologic response
of most watersheds. During the rainy season, intense rain affects
the region, triggering floods and mass movements that
cause economic damage and fatalities. This work presents a
methodological approach to perform the comparative analysis
of two events affecting the same area at a distance of
15 years, by collecting all the qualitative and quantitative
features useful to describe both rain and damage. The aim is
to understand if similar meteorological events affecting the
same area can have different outcomes in terms of damage.
The first event occurred between 8 and 10 September 2000,
damaged 109 out of 409 municipalities of the region and
killed 13 people in a campsite due to a flood. The second
event, which occurred between 30 October and 1 November
2015, damaged 79 municipalities, and killed a man due
to a flood. The comparative analysis highlights that, despite
the exceptionality of triggering daily rain was higher in the
2015 event, the damage caused by the 2000 event to both infrastructures
and belongings was higher, and it was strongly
increased due to the 13 flood victims. We concluded that, in
the 2015 event, the management of pre-event phases, with the
issuing of meteorological alert, and the emergency management,
with the preventive evacuation of people in hazardous
situations due to landslides or floods, contributed to reduce
the number of victims.
Marchi Lorenzo, 2017, Interactive comment on “Hydrological control of large hurricane-induced lahars_ evidences from rainfall, seismic and video monitoring” by Lucia Capra et al.,
Natural hazards and earth system sciences (Online) (2017): C1–C2. doi_10.5194/nhess-2017-354-SC1,
DOI: 10.5194%2Fnhess-2017-354-SC1
Cervi, F.; Borgatti, L.; Dreossi, G.; Marcato, G.; Michelini, M.; Stenni, B., 2017, Isotopic features of precipitation and groundwater from the Eastern Alps of Italy_ results from the Mt. Tinisa hydrogeological system,
Environmental earth sciences (Print) 76 (2017). doi_10.1007/s12665-017-6748-9,
DOI: 10.1007%2Fs12665-017-6748-9
Abstract
This study analyses water stable isotopes data collected from precipitation (one rain gauge) and groundwater ...
This study analyses water stable isotopes data collected from precipitation (one rain gauge) and groundwater outlets (seven occurrences and two springs) at Mt. Tinisa, in the Eastern Alps of Italy. Limestones and dolostones outcrop in the mountain relief, making up a single aquifer which feeds the monitored outlets with almost steady discharges. Lack of runoff in the streambeds throughout the whole year means that all meteoric water can be considered as recharging the aquifer. Sampling was undertaken during the periods 2005-2010 (precipitation) and 2014-2015 (groundwater) via monthly and two/three-monthly field-activities, respectively, which allowed a total of 138 water samples to be gathered and analysed. Results highlighted the presence of apparent isotopic anomalies in groundwater in comparison with meteoric water. The study demonstrates that the assessment of groundwater residence time and estimates of the mean monthly isotopic content in rainwater have been necessary to correctly compare the two isotopic datasets and relate the anomaly to the recharge time-window, occurring in the late autumn.
Pagliarulo R., 2017, Geological outlines of the Apulian Region in the Southern Apennine Arc,
2017,
Abstract
The geological - structural set up of the Apulian Foreland and the main features ...
The geological - structural set up of the Apulian Foreland and the main features of the geo dynamic evolution of the Southern Italy
Marchi Lorenzo, 2017, Comment on ‘The influence of geological-morphological and land-use settings on shallow landslides in the Pogliaschina T. basin (northern Apennines, Italy)’ by Bartelletti et al. (2017),
Journal of maps 13 (2017): 866–867. doi_10.1080/17445647.2017.1376227,
DOI: 10.1080%2F17445647.2017.1376227
Pagliarulo R., 2017, Instability processes affecting the Apulian Coastal areas and the related hazard,
2017,
Abstract
Analysis of factors controlling the coastal dynamics, the instability processes affecting the Apulian coastal ...
Analysis of factors controlling the coastal dynamics, the instability processes affecting the Apulian coastal areas and the related hazard within their geomorphological evolution
Loizu, J., Massari, C., Álvarez-Mozos, J., Tarpanelli, A., Brocca, L., Casalí, J., 2017, On the assimilation set-up of ASCAT soil moisture data for improving streamflow catchment simulation,
Advances in water resources (2017). doi_10.1016/j.advwatres.2017.10.034,
DOI: 10.1016%2Fj.advwatres.2017.10.034
Abstract
Assimilation of remotely sensed surface soil moisture (SSM) data into hydrological catchment models has been ...
Assimilation of remotely sensed surface soil moisture (SSM) data into hydrological catchment models has been identified as a means to improve streamflow simulations, but reported results vary markedly depending on the particular model, catchment and assimilation procedure used. In this study, the influence of key aspects, such as the type of model, re-scaling technique and SSM observation error considered, were evaluated. For this aim, Advanced SCATterometer ASCAT-SSM observations were assimilated through the ensemble Kalman filter into two hydrological models of different complexity (namely MISDc and TOPLATS) run on two Mediterranean catchments of similar size (750 km2). Three different re-scaling techniques were evaluated (linear re-scaling, variance matching and cumulative distribution function matching), and SSM observation error values ranging from 0.01% to 20% were considered. Four different efficiency measures were used for evaluating the results. Increases in Nash-Sutcliffe efficiency (0.03-0.15) and efficiency indices (10-45%) were obtained, especially when linear re-scaling and observation errors within 4-6% were considered. This study found out that there is a potential to improve streamflow prediction through data assimilation of remotely sensed SSM in catchments of different characteristics and with hydrological models of different conceptualizations schemes, but for that, a careful evaluation of the observation error and re-scaling technique set-up utilized is required.
Ciabatta, L., Massari, C., Brocca, L., Gruber, A., Reimer, C., Hahn, S., Paulik, C., Dorigo, W., Kidd, R., Wagner, W., 2017, SM2RAIN-CCI: A new global long-term rainfall data set derived from ESA CCI soil moisture,
Earth system science data. Papers in open discussion (2017). doi_10.5194/essd-2017-86,
DOI: 10.5194%2Fessd-2017-86
Abstract
Accurate and long-term rainfall estimates are the main inputs for several applications, spanning from crop ...
Accurate and long-term rainfall estimates are the main inputs for several applications, spanning from crop modeling to climate analysis. In this study, we present a new rainfall data set (SM2RAIN-CCI) obtained from the inversion of the satellite soil moisture (SM) observations derived from the ESA Climate Change Initiative (CCI) via SM2RAIN (Brocca et al., 2014). Daily rainfall estimates are generated for an 18-year long period (1998-2015), with a spatial sampling of 0.25° on a global scale and are based on the integration of the ACTIVE and the PASSIVE ESA CCI SM data sets.
The quality of the SM2RAIN-CCI rainfall data set is evaluated by comparing it with two stateof-art rainfall satellite products, i.e. the Tropical Measurement Mission Multi-satellite Precipitation Analysis 3B42 real-time product (TMPA 3B42RT) and the Climate Prediction Center Morphing Technique (CMORPH), and one modelled data set (ERA-Interim). The assessment is carried out on a global scale at 1° of spatial sampling and 5-day of temporal sampling by comparing these products with the gauge-based Global Precipitation Climatology Centre Full Data Daily (GPCC-FDD) product. SM2RAIN-CCI shows relatively good results in terms of correlation coefficient (median value > 0.56), Root Mean Square Difference (RMSD, median value < 10.34 mm) and BIAS (median value < -14.44 %) during the evaluation period. The validation has been also carried out at original resolution (0.25°) over Europe, Australia and other 5 areas worldwide to test the capabilities of the data set to correctly identify rainfall events under different climate and precipitation regimes.
The CCI-SM derived rainfall data set is freely available at http_//www.esa-soilmoisture-cci.org at https_//doi.org/10.5281/zenodo.846259.
Beck, H.E., Vergopolan, N., Pan, M., Levizzani, V., van Dijk, A.I.J.M., Weedon, G., Brocca, L., Pappenberger, F., Huffman, G.J., Wood, E.F., 2017, Global-scale evaluation of 22 precipitation datasets using gauge observations and hydrological modeling,
Hydrology and earth system sciences (Online) 21 (2017): 6201–6217. doi_10.5194/hess-21-6201-2017,
DOI: 10.5194%2Fhess-21-6201-2017
Abstract
We undertook a comprehensive evaluation of 23 gridded (quasi-)global (sub-)daily precipitation (P) datasets for the ...
We undertook a comprehensive evaluation of 23 gridded (quasi-)global (sub-)daily precipitation (P) datasets for the period 2000-2016. Thirteen non-gauge-corrected P datasets were evaluated using daily P gauge observations from 76 086 gauges worldwide. Another ten gauge-corrected datasets were evaluated using hydrological modeling, by calibrating the conceptual model HBV against streamflow records for each of 9053 small to medium-sized (< 50 000 km2) catchments worldwide, and comparing the resulting performance. Marked differences in spatio-temporal patterns and accuracy were found among the datasets. Among the uncorrected P datasets, the satellite- and reanalysis-based MSWEP-ng V1.2 and V2.0 datasets generally showed the best temporal correlations with the gauge observations, followed by the reanalyses (ERA-Interim, JRA-55, and NCEP-CFSR) and the the satellite- and reanalysis-based CHIRP V2.0 dataset, the estimates based primarily on passive microwave remote sensing of rainfall (CMORPH V1.0, GSMaP V5/6, and TMPA 3B42RT V7) or near-surface soil moisture (SM2RAIN-ASCAT), and finally, estimates based primarily on thermal infrared imagery (GridSat V1.0, PERSIANN, and PERSIANN-CCS). Two of the three reanalyses (ERA-Interim and JRA-55) unexpectedly obtained lower trend errors than the satellite datasets. Among the corrected P datasets, the ones directly incorporating daily gauge data (CPC Unified and MSWEP V1.2 and V2.0) generally provided the best calibration scores, although the good performance of the fully gaugebased CPC Unified is unlikely to translate to sparsely or ungauged regions. Next best results were obtained with P estimates directly incorporating temporally coarser gauge data (CHIRPS V2.0, GPCP-1DD V1.2, TMPA 3B42 V7, and WFDEI-CRU), which in turn outperformed those indirectly incorporating gauge data through other multi-source datasets (PERSIANN-CDR V1R1 and PGF). Our results highlight large differences in estimation accuracy, and hence, the importance of P dataset selection in both research and operational applications. The good performance of MSWEP emphasizes that careful data merging can exploit the complementary strengths of gauge-, satellite- and reanalysis-based P estimates.
Román-Cascón, Carlos; Pellarin, Thierry; Gibon, François; Brocca, Luca; Cosme, Emmanuel; Crow, Wade; Fernández-Prieto, Diego; Kerr, Yann H.; Massari, Christian, 2017, Correcting satellite-based precipitation products through SMOS soil moisture data assimilation in two land-surface models of different complexity_ API and SURFEX,
Remote sensing of environment 200 (2017): 295–310. doi_10.1016/j.rse.2017.08.022,
DOI: 10.1016%2Fj.rse.2017.08.022
Abstract
Global rainfall information is useful for many applications. However, real-time versions of satellite-based rainfall products ...
Global rainfall information is useful for many applications. However, real-time versions of satellite-based rainfall products are known to contain errors. Recent studies have demonstrated how the information about rainfall intrinsically contained in soil moisture data can be utilised for improving rainfall estimates. That is, soil moisture dynamics are impacted for several days by the accumulated amount of rainfall following within a particular event. In this context, soil moisture data from the Soil Moisture Ocean Salinity (SMOS) satellite is used in this study to correct rainfall accumulation estimates provided by satellite-based real-time precipitation products such as CMORPH, TRMM-3B42RT or PERSIANN. An algorithm based on the SMOS measurements data assimilation is tested in two land-surface models of different complexity_ a simple hydrological model (Antecedent Precipitation Index (API)) and a more sophisticated state-of-the-art land-surface model (SURFEX (Surface Externalisée)). We show how the assimilation technique, based on a particle filter method, generally leads to a significant improvement in rainfall estimates, with slightly better results for the simpler (and less computationally demanding) API model. This methodology has been evaluated for six years at ten sites around the world with different land use and climatological features. The results also show the limitations of the methodology in regions highly affected by mountainous terrain, forest or intense radio-frequency interference (RFI), which can notably affect the quality of the retrievals. The satisfactory results shown here invite the future operational application of the methodology in near-real time on a global scale.
Tarpanelli, A.; Massari, C.; Ciabatta, L.; Filippucci, P.; Amarnath, G.; Brocca, L., 2017, Exploiting a constellation of satellite soil moisture sensors for accurate rainfall estimation,
Advances in water resources 108 (2017): 249–255. doi_10.1016/j.advwatres.2017.08.010,
DOI: 10.1016%2Fj.advwatres.2017.08.010
Abstract
A merging procedure is applied to five daily rainfall estimates achieved via SM2RAIN applied to ...
A merging procedure is applied to five daily rainfall estimates achieved via SM2RAIN applied to the soil moisture products obtained by the Advanced SCATterometer, the Advanced Microwave Scanning Radiometer 2, the Soil Moisture Active and Passive mission, the Soil Moisture and Ocean Salinity mission and backscattering observations of RapidScat. The precipitation estimates are evaluated against dense ground networks in the period ranging from April to December, 2015, in India and in Italy, at 0.25°/daily spatial/temporal resolution. The merged product derived by combining the different SM2RAIN rainfall products shows better results in term of statistical and categorical metrics with respect to the use of the single products. A good agreement with reference to ground observations is obtained, with median correlations equal to 0.65 and 0.77 in India and in Italy, respectively. The merged dataset is found to slightly outperform those of the IMERG product of the Global Precipitation Measurement mission underlying the large potential of the proposed approach.
Massari, Christian; Crow, Wade; Brocca, Luca, 2017, An assessment of the performance of global rainfall estimates without ground-based observations,
Hydrology and earth system sciences 21 (2017): 4347–4361. doi_10.5194/hess-21-4347-2017,
DOI: 10.5194%2Fhess-21-4347-2017
Abstract
Satellite-based rainfall estimates over land have great potential for a wide range of applications, but ...
Satellite-based rainfall estimates over land have great potential for a wide range of applications, but their validation is challenging due to the scarcity of ground-based observations of rainfall in many areas of the planet. Recent studies have suggested the use of triple collocation (TC) to characterize uncertainties associated with rainfall estimates by using three collocated rainfall products. However, TC requires the simultaneous availability of three products with mutually uncorrelated errors, a requirement which is difficult to satisfy with current global precipitation data sets.
In this study, a recently developed method for rainfall estimation from soil moisture observations, SM2RAIN, is demonstrated to facilitate the accurate application of TC within triplets containing two state-of-the-art satellite rainfall estimates and a reanalysis product. The validity of different TC assumptions are indirectly tested via a high-quality ground rainfall product over the contiguous United States (CONUS), showing that SM2RAIN can provide a truly independent source of rainfall accumulation information which uniquely satisfies the assumptions underlying TC. On this basis, TC is applied with SM2RAIN on a global scale in an optimal configuration to calculate, for the first time, reliable global correlations (vs. an unknown truth) of the aforementioned products without using a ground benchmark data set.
The analysis is carried out during the period 2007-2012 using daily rainfall accumulation products obtained at 1° × 1° spatial resolution. Results convey the relatively high performance of the satellite rainfall estimates in eastern North and South America, southern Africa, southern and eastern Asia, eastern Australia, and southern Europe, as well as complementary performances between the reanalysis product and SM2RAIN, with the first performing reasonably well in the Northern Hemisphere and the second providing very good performance in the Southern Hemisphere.
The methodology presented in this study can be used to identify the best rainfall product for hydrologic models with sparsely gauged areas and provide the basis for an optimal integration among different rainfall products.
Pagliarulo Rosa, 2017, Coastal hazard on the evolution of archaeological site of Egnathia (Southern Italy),
III International Workshop " Methods and technologies for Environmental monitoring and modelling_ Emerging Signals, risk perception and management", Matera, September 14-16, 2017,
Abstract
The archaeological site of Egnathia is located along the present Apulian Adriatic coastline. The coastal ...
The archaeological site of Egnathia is located along the present Apulian Adriatic coastline. The coastal hazard that comprises coastal/land processes, past sea level and climatic changes greatly influenced the evolution of the historical place until the abandonment. The ancient ruins, present both emerged and submerged such as docks and harbour, are special markers. They provide a more precise chronological correlation with the events and play a remarkable role in understanding the coastal morphodynamics and past sea level stands. These structures can be considered real archaeo- geodetic bench-marks giving a basic contribution to recognize and correlate paleo sea level and, indirectly pointing out the main climatological events.
During glacial and interglacial periods, sea level has changed due to astronomic, climatic and biological causes. In coastal morphodynamic, the climatic changes have a main role also in the balance between sea and land; that is the destructive and constructive processes caused by sea actions. The coastal morphological evolution of the coastal stretch facing the ancient Egnathia has been reconstructed applying an original numerical model that takes into account the wave motion energies occurred longshore and the flux energy applied by the wind -induced wave actions to the shorelines. The amount of sediments drifted by wave motions and longshore currents, particularly during the storms occurred in the years 1951-2000 has been considered. In consecutive steps, the model defines the energy obtained by each breaker wave to the shoreline. The correlation among the model results, the geological set up, the amount of sediments moved by wave actions and currents, particularly during storms, the chronological data of the archaeological structures and the location and the vicissitudes of the ancient port, allow the reconstruction of the morphological evolution of the area facing the ancient site. The amount of sediments drifted is related to the past climatic conditions. The erosional and depositional phases have greatly controlled the geomorphological changes of the coastline and, as a consequence, also the town-planning choices during the life of the ancient town.