Publications
Publications found: 1555
PREPARATION AND CHARACTERIZATION OF ALCOHOLIC COLLOIDAL DISPERSION OF STRONTIUM HYDROXIDE
Francesco Baldassarre, Dritan Siliqi, 2016, PREPARATION AND CHARACTERIZATION OF ALCOHOLIC COLLOIDAL DISPERSION OF STRONTIUM HYDROXIDE,
EPDIC15 The European Powder Diffraction Conference, pp. 1–1, Bari, 12-15/06/2016,
Abstract
In the field of inorganic protective substances of porous calcareous materials alternatives to nanolime[1], [2] ...
In the field of inorganic protective substances of porous calcareous materials alternatives to nanolime[1], [2] the alcoholic dispersion of colloidal strontium hydroxide may show some effectiveness[3], [4] due to the peculiar chemical-physical features and compatibility with the crystal structure of calcareous. In this work the development of a rapid (about 6h) "bottom-up" procedure of the dispersion has been realized. The colloidal particles have an average diameter of 200 nm and PdI (Poly dispersion Index) is equal to 0.144 (mono-disperse). The colloidal particles show a good kinetic stability (600 nm) with a zeta potential of +28mV. Tests conducted in the laboratory on a glass slide show that the transformation of strontium hydroxide into the corresponding carbonate, in air and under controlled humidity and temperature conditions (21°C, 51% R.H.), is complete in 8~10 days. The characterization is performed by powder X-Ray Diffraction[5] and Dynamic Light Scattering (D.L.S.)[6].
Modelling groundwater saewater contamination in a coastal aquifer_ the case of Sibari Plain (Calabria)
Andrea Romanazzi1, Giuseppe Cianflone2, Rosa De Rosa2, Luigi Marini3, Carmine Apollaro2, Rocco Dominici2,
Giovanni Vespasiano2, Paola Molinari4, Maurizio Polemio1, 2016, Modelling groundwater saewater contamination in a coastal aquifer_ the case of Sibari Plain (Calabria),
Rendiconti online Società Geologica Italiana 39 (2016): 646–646.,
Abstract
The Sibari Plain represents a coastal plain located in the northeastern Calabria Region (southern Italy). ...
The Sibari Plain represents a coastal plain located in the northeastern Calabria Region (southern Italy). The late Pleistocene-Holocene plain evolution is characterized by uplift and alluvial fans development along the outer limit, fault activity and the Crati Delta progradation in the middle sector and its result is a complex stratigraphic architecture.
The plain is characterized by two well defined aquifers and the analysis of the hydrostratigraphic units shows a very complex framework made by the association of "jigsaw-puzzle" and "labyrinth" systems. The thicknesses and geometry of aquifers and aquitard were estimated by well-log data to be used for numerical the hydrogeological
modelling.
The computer codes selected for numerical groundwater modelling were MODFLOW and SEAWAT. Model was calibrated with PEST code with a correlation coefficient equal to 0,90. The water balance of both aquifers was calculated.
Furthermore, 103 wells were sampled and analyzed for a geochemical characterization. Geochemical data were
interpreted following a reliable procedure which comprises_ the classification of waters and the inspection of chloride
plots, reaction path modeling of ionic exchange by means of the EQ3/6 software package and the interpretation of
isotope data. The final aim of this procedure was the elaboration of the conceptual model of the site, which was based
not only on the outcomes of the interpretation of geochemical data but also on the synthesis of these results with
geological and hydro-geological evidence. The chemistry of groundwaters is dominated by Ca-HCO3 (70 samples) and
Na-Cl (14 samples) compositions. The Latter is typical of the coastal areas where sea water ingression or a mixing with
brine deep waters are possible.
The presence of buried salt rocks, deep mineralized water bodies and fault system with subsurface evidences
suggests the possible existence of plumes of deep mineralized waters, which use the tectonic discontinuities to rise
toward the surface.
A large scale model approach finalised to the management of coastal groundwater resources_ the case of Salento (southern Italy)
Maurizio Polemio, Andrea Romanazzi, 2016, A large scale model approach finalised to the management of coastal groundwater resources_ the case of Salento (southern Italy),
Rendiconti online Società Geologica Italiana 39 (2016): 645–645.,
Abstract
The general purpose of this paper is to prove the capability of numerical models in ...
The general purpose of this paper is to prove the capability of numerical models in management of groundwater resources and in particular for achieve forecast scenarios to evaluate the impacts of climate change on them. A large scale approach was chosen. The active domain of the study area (active cells) covers approximately 2,300 km2 with
45,925 cells. Vertically, the area was divided into 12 layers to allow a good lithological and hydrogeological discretization. Thickness and geometry of layers was defined on the 3D knowledge of hydrogeological complexes.
Climatic, hydrological, geological, hydrological and agricultural acquisitions were processing and became the input for a variable-density flow and transport numerical modelling. MODFLOW and SEAWAT was used. Qualitative and quantitative groundwater trends from 1930 to 2060 were defined. To achieve predictive scenarios for the managementof coastal groundwater resources could be necessary take into account climate changes, with regard particularly totemperature, precipitation, sea level and seawater salinity. The purpose was assessing the effects of climate change ongroundwater availability and quality. Results show an important piezometric decrease and an increment of seawaterintrusion and in consequence a deterioration of groundwater resource. For these requires different scenarios of pumping were considered to pursue the optimal solution to combine water demand and steady availability and quality of discharged water.
Conceptual and numerical model of submarine and subaerial coastal springs of Mar Piccolo (Taranto, Southern Italy)
Livia Emanuela Zuffianò, Alessia Basso, Domenico Casarano, Vittoria Dragone, Pier Paolo Limoni,
Andrea Romanazzi, Francesca Santaloia, Maurizio Polemio, 2016, Conceptual and numerical model of submarine and subaerial coastal springs of Mar Piccolo (Taranto, Southern Italy),
Rendiconti online Società Geologica Italiana 39 (2016): 615–615.,
Abstract
The Mar Piccolo (literally "small sea"), a sea internal basin which is part of the ...
The Mar Piccolo (literally "small sea"), a sea internal basin which is part of the Taranto Gulf, located along theIonian coast in Southern Italy (Apulia region), represents a peculiar and sensitive environmental area and a social emergency due to the pollution of sea water and sediments due to the effect of the neat industrial area of Taranto. The
paper describes the methodological approach to define the conceptualisation of the hydrogeological basin of main subaerial and submarine coastal springs of the Mar Piccolo. The geochemical discussion concerning spring groundwater was finalised to define the effect of seawater intrusion. These waters are characterised by high values of electrical conductivity and high concentrations of alkaline ions (Na+ and K+) and chloride ion and show typical chemical characteristics of fresh groundwater contaminated by seawater intrusion. The groundwater composition of the subaerial springs of Mar Piccolo is controlled by the combined effects of calcite dissolution and ion exchange. A basic
model of the coastal aquifer was realised with the purpose to assess the mean annual and monthly value of spring outflows in Mar Piccolo. The computer codes selected for numerical groundwater modelling were MODFLOW and SEAWAT. The active domain of the model was about 978 km2 with a total number of 391200 cells. The research
pursues the knowledge of the hydrological balance of the internal sea, the geochemistry of groundwater, and the groundwater discharge effect on the ecological equilibrium of the coastal environment in the framework of a wide Italian research program called RITMARE.
Geothermic coastal springs in Southern Italy
Livia Emanuela Zuffianò1, Maurizio Polemio1, Pier Paolo Limoni1, Domenico Liotta2, Angelo Minissale3,
Giuseppe Palladino1, Enzo Rizzo4, Francesca Santaloia1, 2016, Geothermic coastal springs in Southern Italy,
Rendiconti online Società Geologica Italiana 39 (2016): 283–283.,
Abstract
Carbonate aquifers, located in foreland tectonic settings, could represent important thermal water resources outside the ...
Carbonate aquifers, located in foreland tectonic settings, could represent important thermal water resources outside the volcanic areas, supplying spas or geothermal installations. Thermal springs constitute the discharge areas of deep marine and continental groundwater flowing within these carbonate aquifers whose hydraulic conductivity and the relevant geothermal fluid migration are strictly controlled by both the discontinuity rock network and the karst processes involving the foreland environment. An example of these springs occurs along the south-easternmost portion of the Apulia region (Southern Italy) where some sulphurous and warm waters (22-33 °C) flow out in partially submerged caves located along the coast, thus supplying the spas of Santa Cesarea Terme (referred as SCT in the following). Some hypotheses about the origin of these warm waters were proposed up to now by previous researches but some uncertainties still exist. For this reason, the SCT area was selected in order to define the conceptual model of the geothermal resources related to the thermal springs and, as a consequence, the origin of the thermal springs. This SCT area is one of the pilot site of the Vigor Project (Evaluation of the geothermal potential of Regions of Convergence), promoted by the Italian Ministry of Economic Development and National Research Council. Geological and hydrogeological surveys, including geo-electrical prospecting, and chemical and isotopic analyses of both groundwater and seawater were carried out. Stable isotopes (e.g. ?18O, ?D) were used to define the origin of the thermal waters and the recharge mechanism of the geothermal systems while the radiocarbonate 14C was determined for estimating the age of the thermal waters.
All the geological, hydrogeological and geochemical data acquired during the project were so analyzed in order to define the conceptual model of the SCT geothermal resource. The thermal waters arise from ancient seawaters infiltrated at great depth within the seabed substratum, located in front of the Santa Cesarea coastal sector. Moreover all
the data were examined to improve the knowledge of the groundwater flow system, thus assessing the possibility of using low-temperature geothermal fluids to fulfill the thermal needs of the town of Santa Cesarea Terme.
Surface-water
Alessandro Chiaudani, Diego Di Curzio, William Palmucci1, Maurizio Polemio, Sergio Rusi, 2016, Surface-water,
Rendiconti online Società Geologica Italiana 39 (2016): 216–216.,
Abstract
The water resource management needs a detailed hydrogeological framework definition, in order to explain the ...
The water resource management needs a detailed hydrogeological framework definition, in order to explain the relationships between groundwater and both rainfall and riverine recharge influencing its hydrodynamic.
In this research, univariate and bivariate statistical methods have been applied on rainfall, river and piezometric level data, which are generally used to understand the precipitation inflow effect on rivers and springs discharge in karst aquifers. On the other hand, hydraulic head response in porous aquifer are still under study to date.
For this reason, long time series (24 years) of rainfall, river and piezometric level data have been analysed. These data have been collected since 1986 in a rain gauge, a hydrometer and in 3 wells, all located along low Pescara river valley (Abruzzo, Italy) where an important alluvial aquifer is present.
To better understand the hydraulic conditions and to make statistical results coherent, photo-interpretation analyses and GPS surveys have been made.
Based on this information, Auto-Correlation Function has allowed the evaluation of "memory effect" in each considered time series, that represents a self-coherency indicator. This results higher in both wells and river level than in rainfall. The interdependency between different hydrological parameters, that has been found by mean of Cross-
Correlation Function (CCF), highlights a strong groundwater/surface water relationship between Pescara river and 2 of the wells, while the other shows a clear correlation with local rainfall. The CCF has been applied to residual data, after seasonal cycle and trend removal. This analysis underlines in one of the measured wells a strong pressure transfer from river to groundwater during flooding events.
At last, univariate (Fast Fourier Transform) and bivariate (Cross-Amplitude Function) spectral analyses indicate a predominant annual cycle (12 months), linked to seasonal fluctuation, and multi-year cycles (72 and 144 months), related with climatic factors.
Hydrogeological and isotopic study of the multi-aquifer system of the Sibari Plain (Calabria, Southern Italy)
Vespasiano G.; Apollaro C.; Marini L.; Dominici R.; Cianflone G.; Romanazzi A.; Polemio M.; De Rosa R., 2016, Hydrogeological and isotopic study of the multi-aquifer system of the Sibari Plain (Calabria, Southern Italy),
Rendiconti online Società Geologica Italiana 39 (2016): 134–137. doi_10.3301/ROL.2015.158,
Abstract
Geochemical study allowed to recognize four groups of groundwater for the Sibari Plain (Southern Italy): ...
Geochemical study allowed to recognize four groups of groundwater for the Sibari Plain (Southern Italy): Ca-HCO3, Na-Cl, Ca-Cl and Na-HCO3. Chloride-rich waters are located close to the Crati mouth that could be a preferential path for seawater ingression. In fact, seawater and brackish waters could move inland along the stream channel and enter the nearby aquifers due to excessive pumping of wells positioned near the river. In alternative, the occurrence of processes, such as ion exchange or dissolution of halite-bearing Miocene evaporite deposits can generate aqueous solutions with similar characteristics to those produced by seawater ingression. Moreover, was calculated the infiltration average (Hi, m a.s.l.) for groundwater of the Sibari Plain by the following equations_
The data showed a lower average of the infiltrations in the inner part of the Sibari Plain, with values between 550 and 870 m a.s.l., and higher values (1000/1500 m a.s.l.) moving to NW and SE.
Monitoring and Management of Karstic Coastal Groundwater in a Changing Environment (Southern Italy): A Review of a Regional Experience
Polemio, M., 2016, Monitoring and Management of Karstic Coastal Groundwater in a Changing Environment (Southern Italy): A Review of a Regional Experience,
Water (Basel) 8 (2016): 1–16. doi_10.3390/w8040148,
DOI: 10.3390%2Fw8040148
Abstract
The population concentration in coastal areas and the increase of groundwater discharge in combination with ...
The population concentration in coastal areas and the increase of groundwater discharge in combination with the peculiarities of karstic coastal aquifers constitute a huge worldwide problem, which is particularly relevant for coastal aquifers of the Mediterranean basin. This paper offers a review of scientific activities realized to pursue the optimal utilization of Apulian coastal groundwater. Apulia, with a coastline extending for over 800 km, is the Italian region with the largest coastal karst aquifers. Apulian aquifers have suffered both in terms of water quality and quantity. Some regional regulations were implemented from the 1970s with the purpose of controlling the number of wells, well locations, and well discharge. The practical effects of these management criteria, the temporal and spatial trend of recharge, groundwater quality, and seawater intrusion effects are discussed based on long-term monitoring. The efficacy of existing management tools and the development of predictive scenarios to identify the best way to reconcile irrigation and demands for high-quality drinking water have been pursued in a selected area. The Salento peninsula was selected as the Apulian aquifer portion exposed to the highest risk of quality degradation due to seawater intrusion. The capability of large-scale numerical models in groundwater management was tested, particularly for achieving forecast scenarios to evaluate the impacts of climate change on groundwater resources. The results show qualitative and quantitative groundwater trends from 1930 to 2060 and emphasize the substantial decrease of the piezometric level and a serious worsening of groundwater salinization due to seawater intrusion.
PREPARAZIONE E CARATTERIZZAZIONE DI UNA DISPERSIONE ALCOLICA COLLOIDALE DI IDROSSIDO DI STRONZIO FINALIZZATA AL MIGLIORAMENTO DELLE CARATTERISTICHE CHIMICO-FISICHE DELLE CALCARENITI
FRANCESCO BALDASSARRE, GIUSEPPE CHITA, 2016, PREPARAZIONE E CARATTERIZZAZIONE DI UNA DISPERSIONE ALCOLICA COLLOIDALE DI IDROSSIDO DI STRONZIO FINALIZZATA AL MIGLIORAMENTO DELLE CARATTERISTICHE CHIMICO-FISICHE DELLE CALCARENITI,
pp.1–70, 2016,
Abstract
Nell'ambito delle diverse sostanze di natura inorganica utilizzabili per il trattamento conservativo delle calcareniti, in ...
Nell'ambito delle diverse sostanze di natura inorganica utilizzabili per il trattamento conservativo delle calcareniti, in questo lavoro è stata preparata e caratterizzata in laboratorio una dispersione alcolica di idrossido di stronzio di circa 200 nanometri, attraverso una procedura rapida (360min) di tipo "bottom up" . Il processo di carbonatazione dell'idrossido di stronzio si completa entro 8-10gg.
Reply to comment by Evelpidou N. and Pirazzoli P. on “Tidal Notches in the Mediterranean sea_ A comprehensive analysis”
F. Antonioli (a), V. Lo Presti( b, a), , A. Rovere (c, d), L. Ferranti (e), M. Anzidei (f), S.Furlani (g), G.Mastronuzzi (h), P. E. Orru (i), G.Scicchitano (j), G. Sannino (a), C. R. Spampinato (k), R. Pagliarulo (l), G. Deiana (i), E. de Sabata (m), P. Sansò ( n), M. Vacchi (o), A. Vecchio (f), 2016, Reply to comment by Evelpidou N. and Pirazzoli P. on “Tidal Notches in the Mediterranean sea_ A comprehensive analysis”,
Quaternary science reviews 131 (2016): 238–241. doi_10.1016/j.quascirev.2015.09.026,
DOI: 10.1016%2Fj.quascirev.2015.09.026
Abstract
We take the chance offered by the comment of Evelpidou and Pirazzoli (2015a) to our ...
We take the chance offered by the comment of Evelpidou and Pirazzoli (2015a) to our paper (Antonioli et al., 2015) to clarify some aspects of our work. We reinforce our statement that a present-day tidal notch is almost continuously developed along much of the central Mediterranean coast.
Geodatabase degli acquiferi costieri carbonatici ionico-adriatici
Polemio M., De Giorgio G., 2016, Geodatabase degli acquiferi costieri carbonatici ionico-adriatici,
SP3_LI5_WP1_AZ2_UO16_D02, 2016,
Abstract
Documento di sintesi relativo al GeoDatabase del Progetto RITMARE ...
Documento di sintesi relativo al GeoDatabase del Progetto RITMARE
Satellite interferometry for landslide detection in the peri-Adriatic area
Janusz Wasowski(1), Fabio Bovenga(2), Raffaele Nutricato(3), Davide Oscar Nitti(3), Maria Teresa Chiaradia(4), 2015, Satellite interferometry for landslide detection in the peri-Adriatic area,
2nd Regional Symposium on Landslides in the Adriatic-Balkan region, Belgrado (Serbia), 14-16/05/2015,
Abstract
Advanced multi-temporal interferometry (MTI) techniques are being increasingly used in landslide assessment, as they can ...
Advanced multi-temporal interferometry (MTI) techniques are being increasingly used in landslide assessment, as they can provide precise (mm-cm resolution) measurements of very slow ground surface displacements for huge areas with limited vegetation cover. We illustrate the potential of high resolution MTI for wide-area and local-scale detection of slope and associated infrastructure instability hazards in the peri-Adriatic region. This is done by presenting MTI applications to two landslide-prone mountainous areas characterized by different geomorphic, climatic and vegetation conditions, and hence by variable density and distribution of potential radar targets_ the eastern-most part of the Southern Apennines and the mountains in central Albania. The results demonstrate that even in such scarcely urbanized areas MTI can provide valuable information on the presence of slope movements that locally affect small human settlements and road network. The gaps in satellite-derived information, especially evident in the more forested Albanian mountains, suggest that MTI could be most profitably exploited in the reconnaissance stage of a slope hazard assessment, to be followed by more detailed investigation and monitoring of sites at risk.
High resolution satellite multi-temporal interferometry for detecting and monitoring landslide and subsidence hazards
Janusz WASOWSKI(1), Fabio BOVENGA(2), Raffaele NUTRICATO(3), Davide Oscar NITTI(3), Maria Teresa CHIARADIA(4), Spartak KUCAJ(5) and Boris STRATI(5), 2015, High resolution satellite multi-temporal interferometry for detecting and monitoring landslide and subsidence hazards,
10th Regional Asian Conference of IAEG (2015), Kyoto (Giappone), 26-27/09/2015,
Abstract
With the increasing number of radar satellites and improved data processing tools, multi-temporal interferometry (MTI) ...
With the increasing number of radar satellites and improved data processing tools, multi-temporal interferometry (MTI) can considerably enhance our capabilities of monitoring landslide and subsidence hazards. MTI provides long-term (years), regular (weekly-monthly), precise (mm) measurements of ground displacements over large areas (thousands of km2), combined with high spatial resolution (up to 1-3 m) and possibility of multi-scale (regional to site-specific) investigations using the same series of radar images. To highlight the great potential of high resolution MTI we discuss application examples from two seismically active regions prone to land instability_ i) Albania, including the large plain area occupied by the city of Tirana and nearby scarcely populated mountains, and ii) Haiti, including the Port-au-Prince metropolitan area, with coastal and mountain zones destabilized by the 2010 Mw 7.0 earthquake. It is shown that MTI can provide very useful results in a wide range of geomorphic, climatic and vegetation environments.
High resolution satellite SAR multi-temporal interferometry for regional scale detection of landslide and subsidence hazards
48.Wasowski J., Bovenga F., Nutricato R., Nitti D. O., Chiaradia M. T., Guerriero L., 2015, High resolution satellite SAR multi-temporal interferometry for regional scale detection of landslide and subsidence hazards,
4th International Conference on Geomorphometry Geomorphometry 2015_ Conference and Workshops, pp. 181–184, Poznan, Polonia, 22-26/06/2015,
Abstract
Among a number of advanced satellite-based remote sensing techniques, synthetic aperture radar (SAR), multi-temporal interferometry ...
Among a number of advanced satellite-based remote sensing techniques, synthetic aperture radar (SAR), multi-temporal interferometry (MTI) appears the most promising for fostering new research opportunities in landslide and subsidence hazards detection and assessment. MTI is attractive to those concerned with terrain instability hazards because it can provide very precise quantitative information on slow displacements of the ground surface over huge areas with limited vegetation cover. Although MTI is a mature technique, we are only beginning to realize the benefits of the high-resolution imagery that is currently acquired by the new generation radar satellites (e.g. COSMO-SkyMed, TerraSAR-X). In this work we demonstrate the great potential of high resolution MTI for regular, wide-area detection of ground instability hazards by presenting results from two regions characterized by different geomorphic, climatic and vegetation conditions_ densely populated metropolitan area of Port-au-Prince (Haiti), with the coastal areas and local slopes destabilized by the 2010 Mw 7.0 earthquake, and the remote high mountain region of Southern Gansu Province (China) prone to large slope failures. The interpretation and widespread exploitation of high spatio-temporal resolution MTI data can be facilitated by web-based applications (e.g. Google EarthTM tools with the associated high resolution optical imagery).
COSMO-SkyMed multi-temporal SAR interferometry over liguria region for environmental monitoring and risk management
Nutricato, R.; Nitti, D. O.; Bovenga, F.; Refice, A.; Wasowski, J.; Chiaradia, M. T.; Milillo, G., 2015, COSMO-SkyMed multi-temporal SAR interferometry over liguria region for environmental monitoring and risk management,
IEEE International Geoscience and Remote Sensing Symposium proceedings 2015, pp. 1405–1408, Milano, Italia, 26-31/07/2015,
Abstract
Thanks to the technological maturity as well as to the wide availability of SAR data, ...
Thanks to the technological maturity as well as to the wide availability of SAR data, Multi-temporal SAR Interferometry (MTInSAR) can be used to support systems devoted to environmental monitoring and risk management. In particular, high resolution X-band MTInSAR applications are also suitable for monitoring single man-made structures (buildings, bridges, railways and highways). The paper presents examples concerning the application of MTInSAR techniques and COSMO-SkyMed constellation for instability monitoring of infrastructures and, in particular, harbor docks and railways.
APPLICATIONS OF MEDIUM C-BAND AND HIGH RESOLUTION X-BAND MULTI-TEMPORAL INTERFEROMETRY IN LANDSLIDE INVESTIGATIONS
Wasowski, J.; Bovenga, F.; Nutricato, R.; Nitti, D. O.; Chiaradia, M. T., 2015, APPLICATIONS OF MEDIUM C-BAND AND HIGH RESOLUTION X-BAND MULTI-TEMPORAL INTERFEROMETRY IN LANDSLIDE INVESTIGATIONS,
International Conference on Sensors & Models in Remote Sensing & Photogrammetry, pp. 737–743, 23-25/11/2015,
Abstract
With the increasing quantity and quality of the imagery available from a growing number of ...
With the increasing quantity and quality of the imagery available from a growing number of SAR satellites and the improved processing algorithms, multi-temporal interferometry (MTI) is expected to be commonly applied in landslide studies. MTI can now provide long-term (years), regular (weekly-monthly), precise (mm) measurements of ground displacements over large areas (thousands of km(2)), at medium (similar to 20 m) to high (up to 1-3 m) spatial resolutions, combined with the possibility of multi-scale (regional to local) investigations, using the same series of radar images. We focus on the benefits as well as challenges of multi-sensor and multi-scale investigations by discussing MTI results regarding two landslide prone regions with distinctly different topographic, climatic and vegetation conditions (mountains in Central Albania and Southern Gansu, China), for which C-band (ERS or ENVISAT) and X-band COSMO-SkyMed (CSK) imagery was available (all in Stripmap descending mode). In both cases X-band MTI outperformed C-band MTI by providing more valuable information for the regional to local scale detection of slope deformations and landslide hazard assessment. This is related to the better spatial-temporal resolutions and more suitable incidence angles (40 degrees-30 degrees versus 23 degrees) of CSK data While the use of medium resolution imagery may be appropriate and more cost-effective in reconnaissance or regional scale investigations, high resolution data could be preferentially exploited when focusing on urbanized landslides or potentially unstable slopes in urban/peri-urban areas, and slopes traversed by lifelines and other engineering structures.
Geothermic coastal springs in Southern Italy
Livia Emanuela Zuffianò1, Maurizio Polemio1, Pier Paolo Limoni1, Domenico Liotta2, Angelo Minissale3, Giuseppe Palladino1, Enzo Rizzo4, Francesca Santaloia1, 2015, Geothermic coastal springs in Southern Italy,
42nd IAH 2015 Congress, Università della Sapienza, Roma, 13-18/9/2015,
Abstract
Carbonate aquifers, located in foreland tectonic settings, could represent important thermal water resources outside the ...
Carbonate aquifers, located in foreland tectonic settings, could represent important thermal water resources outside the volcanic areas, supplying spas or geothermal installations. Thermal springs constitute the discharge areas of deep marine and continental groundwater flowing within these carbonate aquifers whose hydraulic conductivity and the relevant geothermal fluid migration are strictly controlled by both the discontinuity rock network and the karst processes involving the foreland environment. An example of these springs occurs along the south-easternmost portion of the Apulia region (Southern Italy) where some sulphurous and warm waters (22-33 °C) flow out in partially submerged caves located along the coast, thus supplying the spas of Santa Cesarea Terme (referred as SCT in the following). Some hypotheses about the origin of these warm waters were proposed up to now by previous researches but some uncertainties still exist. For this reason, the SCT area was selected in order to define the conceptual model of the geothermal resources related to the thermal springs and, as a consequence, the origin of the thermal springs. This SCT area is one of the pilot site of the Vigor Project (Evaluation of the geothermal potential of Regions of Convergence), promoted by the Italian Ministry of Economic Development and National Research Council. Geological and hydrogeological surveys, including geo-electrical prospecting, and chemical and isotopic analyses of both groundwater and seawater were carried out. Stable isotopes (e.g. ?18O, ?D) were used to define the origin of the thermal waters and the recharge mechanism of the geothermal systems while the radiocarbonate 14C was determined for estimating the age of the thermal waters. All the geological, hydrogeological and geochemical data acquired during the project were so analyzed in order to define the conceptual model of the SCT geothermal resource. The thermal waters arise from ancient seawaters infiltrated at great depth within the seabed substratum, located in front of the Santa Cesarea coastal sector. Moreover all the data were examined to improve the knowledge of the groundwater flow system, thus assessing the possibility of using low-temperature geothermal fluids to fulfill the thermal needs of the town of Santa Cesarea Terme.
Conceptual and numerical model of submarine and subaerial coastal springs of Mar Piccolo (Taranto, Southern Italy)
Livia Emanuela Zuffianò, Alessia Basso, Domenico Casarano, Vittoria Dragone, Pier Paolo Limoni, Andrea Romanazzi, Francesca Santaloia, Maurizio Polemio, 2015, Conceptual and numerical model of submarine and subaerial coastal springs of Mar Piccolo (Taranto, Southern Italy),
42nd IAH 2015 Congress, Università della Sapienza, Roma, 13-18/9/2015,
Abstract
The Mar Piccolo (literally "small sea"), a sea internal basin which is part of the ...
The Mar Piccolo (literally "small sea"), a sea internal basin which is part of the Taranto Gulf, located along theIonian coast in Southern Italy (Apulia region), represents a peculiar and sensitive environmental area and a social emergency due to the pollution of sea water and sediments due to the effect of the neat industrial area of Taranto. The paper describes the methodological approach to define the conceptualisation of the hydrogeological basin of main subaerial and submarine coastal springs of the Mar Piccolo. The geochemical discussion concerning spring groundwater was finalised to define the effect of seawater intrusion. These waters are characterised by high values of electrical conductivity and high concentrations of alkaline ions (Na+ and K+) and chloride ion and show typical chemical characteristics of fresh groundwater contaminated by seawater intrusion. The groundwater composition of the subaerial springs of Mar Piccolo is controlled by the combined effects of calcite dissolution and ion exchange. A basic model of the coastal aquifer was realised with the purpose to assess the mean annual and monthly value of spring outflows in Mar Piccolo. The computer codes selected for numerical groundwater modelling were MODFLOW and SEAWAT. The active domain of the model was about 978 km2 with a total number of 391200 cells. The research pursues the knowledge of the hydrological balance of the internal sea, the geochemistry of groundwater, and the groundwater discharge effect on the ecological equilibrium of the coastal environment in the framework of a wide Italian research program called RITMARE.
Evaluation of the Stability of Underground Cavities in Calcarenite Interacting with Buildings Using Numerical Analysis
Ciantia, Matteo Oryem; Castellanza, Riccardo; di Prisco, Claudio; Lollino, Piernicola; Fernandez Merodo, Jose Antonio; Frigerio, Gabriele, 2015, Evaluation of the Stability of Underground Cavities in Calcarenite Interacting with Buildings Using Numerical Analysis,
IAEG Congress, pp. 65–69, 2014, IAEG Congress,
Abstract
Soft and highly porous rocks such as calcarenites are very common in all Mediterranean region. ...
Soft and highly porous rocks such as calcarenites are very common in all Mediterranean region. Due to their porous calcareous structure these rocks are prone to water induced weathering mechanisms. Natural onshore and inland underground cavities are evidence of such phenomena. The collapse of cliffs and underground cavities is usually the long-term result of a complex hydro-chemo mechanical process taking place at the micro-scale. Experimental results mainly give evidence of_ (a) a marked and instantaneous reduction in strength and stiffness for these porous rocks when macro-pores are filled with water, (b) a slow successive reduction in strength and stiffness occurring in the long-term due to dissolution processes; (c) a more pronounced weakening of the rock material as a consequence of wetting and drying cycles. In the present work a methodological path to cope with deterministic assessment of the stability of natural and anthropic caves will be presented. The following steps will be adopted_ (i) experimental study_ execution of an experimental campaign to identify the physics of the processes taking place at both the micro-scale and the macro-scale; (ii) theoretical study_ extend the concept of strain hardening-non mechanical softening to the time evolution of c-fi reduction; (iii) numerical study_ present the 3D numerical results of a real case-study showing the capability of the proposed methodology to cope with risk assessment in complex geomechanical situations concerning weathering, as for underground cavities.
Integration of InSAR Analysis and Numerical Modeling for the Assessment of Ground Subsidence in the City of Lisbon, Portugal
Catalao J.; Nico G.; Lollino P.; Conde V.; Lorusso G.; Silva C., 2015, Integration of InSAR Analysis and Numerical Modeling for the Assessment of Ground Subsidence in the City of Lisbon, Portugal,
IEEE journal of selected topics in applied earth observations and remote sensing (Print) (2015). doi_10.1109/JSTARS.2015.2428615,
DOI: 10.1109%2FJSTARS.2015.2428615
Abstract
In this work, we exploit the integration of an advanced synthetic aperture radar (SAR) interferometry ...
In this work, we exploit the integration of an advanced synthetic aperture radar (SAR) interferometry technique and the application of the finite-element method for the assessment and the interpretation of a localized subsidence phenomenon that took place within a specific area of Lisbon, Portugal. SAR images over the Lisbon city, covering different time intervals in the period of 1995-2010, were acquired and processed by means of the persistent scatterers (PSs) technique. Results clearly reveals a localized subsidence, limited to an area 2 km × 1.5 km wide, which has been confirmed by the leveling performed in 1976, 1996, and 2010. A physical interpretation of the observed ground deformations is provided based on the results of a finite-element model using stratigraphic data, textit{in situ} piezometric measurements, and geotechnical properties of the involved soils. The ground subsidence is interpreted as the consequence of a consolidation process affecting the central fine-grained soil layer, which in turn has been driven by water withdrawal from the existing aquifers. The change of the hydraulic boundary conditions was generated by the excavation works for the construction of underground lines and also by the reduction of rainfall water infiltration as an effect of the increase in ground surface impermeable areas due to urbanization. The consequent consolidation process of the compressible fine-grained soil layer is supposed to provide a reasonable explanation of the observed time series of ground displacement in the examined area.
The Ivancich active landslide process (Assisi, central Italy) analysed via numerical modeling jointly optimized by Dinsar and Inclinometric data
Castaldo, R.; Tizzani, P.; Lollino, P.; Calò, F.; Ardizzone, F.; Manunta, M.; Guzzetti, F.; Lanari, R., 2015, The Ivancich active landslide process (Assisi, central Italy) analysed via numerical modeling jointly optimized by Dinsar and Inclinometric data,
IAEG Congress, pp. 1513–1517, 2014, IAEG Congress,
Abstract
The analysis of the displacement field due to a landslide process can be performed by ...
The analysis of the displacement field due to a landslide process can be performed by means of either forward or inverse numerical models. Concerning the evolution of slow landslides, the Finite Element Method (FEM) represents a powerful tool to assess the relationships existing between the causative factors and the related effects, being the latter generally detected by field monitoring data. In this context, inverse models are useful to deduce the values of physical or mechanical parameters that control the landslide behavior over time. In this paper, we combined the potentiality of the FEM with Monte Carlo optimization procedures, based on a Genetic Algorithm (GA) technique, to back-analyze and interpret the kinematical evolution of very slow active landslides. In particular, we performed a two-dimensional time-dependent FE analysis by using a deviatoric creep model to simulate the evolution of the displacement field of the very slow Ivancich landslide (Assisi, Central Italy); an optimization procedure was performed by considering the Differential SAR Interferometry (DInSAR) data to derive the soil creep rate distribution, according to an inverse analysis approach. In particular the longterm Small BAseline Subset (SBAS) DInSAR analysis covering about 20 years was compared with the slope velocities calculated by the numerical model and the best-fit creep model was identified by considering the minimum Root Mean Square Error between field data and model results. Finally the model results in terms of slope displacements over time have been also compared with the available inclinometric measurements. .
Use of an Advanced SAR Monitoring Technique to Monitor Old Embankment Dams
Nico, Giovanni; Di Pasquale, Andrea; Corsetti, Marco; Di Nunzio, Giuseppe; Pitullo, Alfredo; Lollino, Piernicola, 2015, Use of an Advanced SAR Monitoring Technique to Monitor Old Embankment Dams,
2014 IAEG Congress, pp. 731–737, 2014, IAEG Congress,
Abstract
The work mainly discusses the use of the Ground-Based Synthetic Aperture Radar (GBSAR) interferometry technique ...
The work mainly discusses the use of the Ground-Based Synthetic Aperture Radar (GBSAR) interferometry technique to observe and control the behavior of earthfill or rockfill embankments for dam impoundments. This non-invasive technique provides overall displacements patterns measured with a sub-millimeter accuracy. The need of reliable monitoring of old embankment dams is rapidly increasing since a large number of these structures are still equipped with old monitoring devices, usually installed some decades ago, which can give only information on localized areas of the embankment. A case study regarding the monitoring of an earthfill dam embankment in Southern Italy by means of GBSAR interferometry is presented.
The influence of climate variability and land use variations on the occurrence of landslide events (Subappennino Dauno, Southern Italy)
Teresa Lonigro (a), Francesco Gentile (b) & Maurizio Polemio (a), 2015, The influence of climate variability and land use variations on the occurrence of landslide events (Subappennino Dauno, Southern Italy),
V Congresso Nazionale dell'Associazione Nazionale Italiana di Geologia Applicata e Ambientale, Università di Cagliari, Cagliari, 29-30/04/2015,
Abstract
The aim of the paper is to describe the results of the application of a ...
The aim of the paper is to describe the results of the application of a methodology based both on the use of time series analyses and of geospatial analyses of monthly climatic data (rainfall, wet days, rainfall intensity, and temperature), annual maximum of short duration rainfall (from 1 hour to 5 days), and historical modification of land use in order to characterise the effects of these variables on the occurrence of landslide events. The methodology was applied in the Subappennino Dauno area, located on the eastern margin of the Southern Apennines thrust belt (southern Italy). Despite the decreasing trend of rainfall and rainfall intensity and the increasing trend of temperatures and wet days, there is an increasing trend of landslide occurrence, highlighting the negative effect of anthropogenic modifications and the mismanagement of landslide-prone areas. This hypothesis was confirmed by comparing the distribution of landslides with the land use variations data (especially urban areas and wooded areas) collected from 1930 to 2006.
Modelling groundwater saewater contamination in a coastal aquifer_ the case of Sibari Plain (Calabria).
Andrea Romanazzi 1, Giuseppe Cianflone 2, Rosa De Rosa 2, Luigi Marini 3, Carmine Apollaro 2, Rocco Dominici 2,
Giovanni Vespasiano 2, Paola Molinari4, Maurizio Polemio 1, 2015, Modelling groundwater saewater contamination in a coastal aquifer_ the case of Sibari Plain (Calabria).,
AQUA2015 Hydrogeology_ back to the future, 42nd IAH 2015 Congress, Università della Sapienza, Roma, 13-18/9/2015,
Abstract
The Sibari Plain represents a coastal plain located in the northeastern Calabria Region (southern Italy). ...
The Sibari Plain represents a coastal plain located in the northeastern Calabria Region (southern Italy). The late
Pleistocene-Holocene plain evolution is characterized by uplift and alluvial fans development along the outer limit, fault activity and the Crati Delta progradation in the middle sector and its result is a complex stratigraphic architecture.
The plain is characterized by two well defined aquifers and the analysis of the hydrostratigraphic units shows a very complex framework made by the association of "jigsaw-puzzle" and "labyrinth" systems. The thicknesses and geometry of aquifers and aquitard were estimated by well-log data to be used for numerical the hydrogeological modelling.
The computer codes selected for numerical groundwater modelling were MODFLOW and SEAWAT. Model was calibrated with PEST code with a correlation coefficient equal to 0,90. The water balance of both aquifers was calculated.
Furthermore, 103 wells were sampled and analyzed for a geochemical characterization. Geochemical data were interpreted following a reliable procedure which comprises_ the classification of waters and the inspection of chloride plots, reaction path modeling of ionic exchange by means of the EQ3/6 software package and the interpretation of isotope data. The final aim of this procedure was the elaboration of the conceptual model of the site, which was based not only on the outcomes of the interpretation of geochemical data but also on the synthesis of these results with geological and hydro-geological evidence. The chemistry of groundwaters is dominated by Ca-HCO3 (70 samples) and Na-Cl (14 samples) compositions. The Latter is typical of the coastal areas where sea water ingression or a mixing with brine deep waters are possible.
The presence of buried salt rocks, deep mineralized water bodies and fault system with subsurface evidences suggests the possible existence of plumes of deep mineralized waters, which use the tectonic discontinuities to rise toward the surface.
A large scale model approach finalised to the management of coastal groundwater resources_ the case of Salento (southern Italy)
POLEMIO M., ROMANAZZI A., 2015, A large scale model approach finalised to the management of coastal groundwater resources_ the case of Salento (southern Italy),
AQUA2015 Hydrogeology_ back to the future, 42nd IAH 2015 Congress, Università della Sapienza, Roma, 13-18/9/2015,
Abstract
A large scale model approach finalised to the management of coastal groundwater resources_ the case ...
A large scale model approach finalised to the management of coastal groundwater resources_ the case of Salento (southern Italy)
Integration of InSAR Analysis and Numerical
Joao Catalao, Giovanni Nico, Piernicola Lollino, Vasco Conde, Gaetano Lorusso, Catarina Silva, 2015, Integration of InSAR Analysis and Numerical,
IEEE journal of selected topics in applied earth observations and remote sensing (Print) (2015). doi_10.1109/JSTARS.2015.2428615,
DOI: 10.1109%2FJSTARS.2015.2428615
Abstract
In this work, we exploit the integration of an
advanced synthetic aperture radar (SAR) interferometry technique
and ...
In this work, we exploit the integration of an
advanced synthetic aperture radar (SAR) interferometry technique
and the application of the finite-element method for the
assessment and the interpretation of a localized subsidence phenomenon
that took place within a specific area of Lisbon, Portugal.
SAR images over the Lisbon city, covering different time intervals
in the period of 1995-2010, were acquired and processed by
means of the persistent scatterers (PSs) technique. Results clearly
reveals a localized subsidence, limited to an area 2 km × 1.5 km
wide, which has been confirmed by the leveling performed in 1976,
1996, and 2010. A physical interpretation of the observed ground
deformations is provided based on the results of a finite-element
model using stratigraphic data, in situ piezometric measurements,
and geotechnical properties of the involved soils. The ground subsidence
is interpreted as the consequence of a consolidation process
affecting the central fine-grained soil layer, which in turn has been
driven by water withdrawal from the existing aquifers. The change
of the hydraulic boundary conditions was generated by the excavation
works for the construction of underground lines and also
by the reduction of rainfall water infiltration as an effect of the
increase in ground surface impermeable areas due to urbanization.
The consequent consolidation process of the compressible
fine-grained soil layer is supposed to provide a reasonable explanation
of the observed time series of ground displacement in the
examined area.
The influence of climate variability and land use variations on the occurrence of landslide events (Subappennino Dauno, Southern Italy)
Lonigro T.; Gentile F.; Polemio M., 2015, The influence of climate variability and land use variations on the occurrence of landslide events (Subappennino Dauno, Southern Italy),
Rendiconti online Società Geologica Italiana 35 (2015): 192–195. doi_10.3301/ROL.2015.98,
Abstract
The aim of the paper is to describe the results of the application of a ...
The aim of the paper is to describe the results of the application of a methodology based both on the use of time series analyses and of geospatial analyses of monthly climatic data (rainfall, wet days, rainfall intensity, and temperature), annual maximum of shortduration rainfall (from 1 hour to 5 days), and historical modification of land use in order to characterise the effects of these variables on the occurrence of landslide events. The methodology was applied in the Subappennino Dauno area, located on the eastern margin of the Southern Apennines thrust belt (southern Italy). Despite the decreasing trend of rainfall and rainfall intensity and the increasing trend of temperatures and wet days, there is an increasing trend of landslide occurrence, highlighting the negative effect of anthropogenic modifications and the mismanagement of landslide-prone areas. This hypothesis was confirmed by comparing the distribution of landslides with the land use variations data (especially urban areas and wooded areas) collected from 1930 to 2006.
Coastal hydrogeological system of Mar Piccolo (Taranto, Italy)
Zuffiano L.E.; Basso A.; Casarano D.; Dragone V.; Limoni P.P.; Romanazzi A.; Santaloia F.; Polemio M., 2015, Coastal hydrogeological system of Mar Piccolo (Taranto, Italy),
Environmental science and pollution research international (2015). doi_10.1007/s11356-015-4932-6,
DOI: 10.1007%2Fs11356-015-4932-6
Abstract
The Mar Piccolo basin is an internal sea basin located along the Ionian coast (Southern ...
The Mar Piccolo basin is an internal sea basin located along the Ionian coast (Southern Italy), and it is surrounded primarily by fractured carbonate karstic environment. Because of the karstic features, the main continental water inflow is from groundwater discharge. The Mar Piccolo basin represents a peculiar and sensitive environment and a social emergency because of sea water and sediments pollution. This pollution appears to be caused by the overlapping effects of dangerous anthropogenic activities, including heavy industries and commercial and navy dockyards.
The paper aims to define the contribution of subaerial and submarine coastal springs to the hydrological dynamic equilibrium of this internal sea basin. A general approach was defined, including a hydrogeological basin border assessment to detect inflowing springs, detailed geological and hydrogeological conceptualisation, in situ submarine and subaerial spring measurements, and flow numerical modelling.
Multiple sources of data were obtained to define a relevant geodatabase, and it contained information on approximately 2,000 wells, located in the study area (1,600 km2). The conceptualisation of the hydrogeological basin, which is 978 km2 wide, was supported by a 3D geological model that interpolated 716 stratigraphic logs. The variability in hydraulic conductivity was determined using hundreds of pumping tests. Five surveys were performed to acquire hydro-geochemical data and spring flow-yield measurements; the isotope groundwater age was assessed and used for model validation. The mean annual volume exchanged by the hydrogeological basin was assessed equal to 106.93 106 m3. The numerical modelling permitted an assessment of the mean monthly yield of each spring outflow (surveyed or not), travel time, and main path flow.
Modelling and management of a Mediterranean karstic coastal aquifer under the effects of seawater intrusion and climate change
Romanazzi A.; Gentile F.; Polemio M., 2015, Modelling and management of a Mediterranean karstic coastal aquifer under the effects of seawater intrusion and climate change,
Environmental earth sciences (Print) 74 (2015): 115–128. doi_10.1007/s12665-015-4423-6,
DOI: 10.1007%2Fs12665-015-4423-6
Abstract
The study and management of the groundwater resources of a large, deep, coastal, karstic aquifer ...
The study and management of the groundwater resources of a large, deep, coastal, karstic aquifer represent a very complex hydrogeological problem. Here, this problem is successfully approached by using an equivalent porous continuous medium (EPCM) to represent a karstic Apulian aquifer (southern Italy). This aquifer, which is located on a peninsula and extends to hundreds of metres depth, is the sole local source of high-quality water resources. These resources are at risk due to overexploitation, climate change and seawater intrusion. The model was based on MODFLOW and SEAWAT codes. Piezometric and salinity variations from 1930 to 2060 were simulated under three past scenarios (up to 1999) and three future scenarios that consider climate change, different types of discharge, and changes in sea level and salinity. The model was validated using surveyed piezometric and salinity data. An evident piezometric drop was confirmed for the past period (until 1999); a similar dramatic drop appears to be likely in the future. The lateral intrusion and upconing effects of seawater intrusion were non-negligible in the past and will be considerable in the future. All phenomena considered here, including sea level and sea salinity, showed non-negligible effects on coastal groundwater.
Integration of SBAS-DInSAR and in-situ observations for 3D numerical optimization modelling_ The case study of Ivancich landslide (Assisi, Italy).
Manunta M., Castaldo R., De Novellis V., Lollino P., Tizzani P., 2015, Integration of SBAS-DInSAR and in-situ observations for 3D numerical optimization modelling_ The case study of Ivancich landslide (Assisi, Italy).,
Geoscience and Remote Sensing Symposium (IGARSS), Luglio 2015,
Abstract
Il lavoro presenta i risultati di una integrazione di dati interferometrici e di osservazioni in ...
Il lavoro presenta i risultati di una integrazione di dati interferometrici e di osservazioni in sito ai fini di un'ottimizzazione dei risultati di un modello tridimensionale agli elementi finiti di una frana attiva a cinematica lenta.
Diagnosis of Slow Landslides Affecting Tectonised Clayey Slopes (Southern Apennines)
Cotecchia, Federica; Santaloia, Francesca; Pedone, Giuseppe; Vitone, Claudia; Lollino, Piernicola; Mitaritonna, Giuseppina, 2015, Diagnosis of Slow Landslides Affecting Tectonised Clayey Slopes (Southern Apennines),
IAEG Congress, pp. 1029–1032, 2014, IAEG Congress,
Abstract
The assessment of the slope failure mechanisms, along with the identification of the factors promoting ...
The assessment of the slope failure mechanisms, along with the identification of the factors promoting the development of the landslide processes, represents the keystone for an effective design of landslide mitigation. The paper outlines some mitigation strategies for some slow-moving landslides, involving heterogeneous and tectonized soils, located in the outer sector of Southern Apennines. These mitigation designs result from a comprehensive analysis of the failure slope scenarios as resulted from field surveys and investigations, slope monitoring and laboratory testing.
Una molteplicità di approcci a supporto della mitigazione dei rischi idrogeologici perseguita dai consorzi di bonifica (Gargano, Puglia)
Dragone V.
Muciaccia M.
Basso A.
Ciciretti L.
Palombella M.
Polemio M., 2015, Una molteplicità di approcci a supporto della mitigazione dei rischi idrogeologici perseguita dai consorzi di bonifica (Gargano, Puglia),
Giornate dell'Idrogeologia della Società Idrologica Italiana 2015, Perugia, 6-8/10/2015,
Abstract
Il Progetto GarganoLab ovvero "Sistema informativo integrato per la gestione del territorio, il monitoraggio ambientale ...
Il Progetto GarganoLab ovvero "Sistema informativo integrato per la gestione del territorio, il monitoraggio ambientale ed allerta di emergenza", finanziato dalla Regione Puglia grazie alle misure "Living Labs", è stato concepito dal consorzio tra le imprese Staer Sistemi, W-Enterprise e Gemict a supporto della domanda di innovazione tecnologica del Consorzio di Bonifica Montana del Gargano (CBMG), al fine di perseguire la riduzione dei rischi idrogeologici e l'ottimale gestione delle opere di mitigazione. La nota descrive il contributo offerto in particolare dal partner di progetto, il Laboratorio di Idrologia del CNR-IRPI. Il progetto ha perseguito la mitigazione dei rischi naturali, dovuti a frane e, soprattutto, piene, e gli effetti della siccità nel territorio del Consorzio di Bonifica Montana del Gargano, con maggiore dettaglio nelle zone più esposte, come il bacino idrografico Molinella di Vieste, drammaticamente interessato anche dal più recente evento alluvionale, occorso nel Gargano dall'1 al 6/9/2014. Il Gargano è un territorio peculiare, spiccatamente montano e carsico; per la forte vicinanza al mare è colpito da fenomeni meteorici particolarmente violenti e repentini; con tali peculiarità il deflusso fluviale è di per se raro, breve e quasi sempre fulmineamente catastrofico. Il contributo del CNR-IRPI è consistito in diverse attività nel seguito brevemente descritte. 1)Analisi statistica delle serie idrologiche e individuazione dei trend_ è stato condotto lo studio statistico di tutte le serie storiche climatiche disponibili (dal 1918) per caratterizzare la siccità e l'eccezionalità degli eventi meteorici accaduti o attesi. Ricorrendo ai più opportuni indici statistici, ed in particolare all'indice SPI (Standardized Precipitation Index) maggiormente utilizzato a livello internazionale per descrivere gli eventi estremi della siccità mediante la quantificazione del deficit di precipitazione per diverse scale di tempi o durate, generalmente espressi in mesi, si è così dotato il progetto di uno strumento utile a individuare i trend statistici della siccità per diverse durate temporali, di interesse per gli aspetti meteorologici, idrologici e agricoli. Lo strumento è attivo a ritroso, per molte decine di anni, e si aggiorna in tempo reale, man mano che le misure climatiche si rendono disponibili. 2)Stima delle funzioni di distribuzione della probabilità: le serie dei massimi delle piogge cumulate da un'ora a 5 giorni sono state utilizzate per definire le funzioni di distribuzione della probabilità dei valori estremi a doppia componente (TCEV) a tutti di livelli di regionalizzazione. Tale approccio permette di compensare la limitata estensione del campionamento, ovvero della durata delle misure, limitata rispetto all'obiettivo di stimare tempi di ritorno molto più lunghi delle suddette durate, con le informazioni statisticamente rilevanti presenti nelle serie storiche della medesima regione, attualizzando e affinando i risultati del Progetto VAPI, relativo alla Puglia. Tale strumento, permette di stimare il valore della pioggia di desiderata eccezionalità per una località del Gargano per cui si conosca soltanto la quota o di convertire in tempo reale le previsioni di pioggia a breve termine, elaborate dal sistema nazionale di protezione civile, in valori di eccezionalità statistica per ciascuna località, informazione molto utile per predisporsi con un sufficiente orizzonte previsionale alla gestione delle emergenze, sia dovute alle frane a innesco piovoso che alle piene. 3)Creazione di un database geo-riferito degli eventi storici_ la ricerca storica documentazione tecnica, quotidiani locali e nazionali, database nazionali e pubblicazioni scientifiche, ha permesso di costituire un'inedita banca dati degli eventi calamitosi del Gargano con primaria attenzione a frane e alluvioni, occorsi a partire dal 1876. Tale banca dati è stata georeferenziata; le aree caratterizzate da più frequenti occorrenze e gli eventi più catastrofici sono stati studiati in maggiore dettaglio. L'uso dello strumento GIS ha dato vita al più completo geodatabase per il territorio di studio, raccogliendo ogni tipo di informazione utile (clima, geologia, idrogeologia, reti di monitoraggio, infrastrutture di trasporto, aree vulnerabili, etc.), integrando queste conoscenze con i livelli informativi derivanti dagli approcci precedenti. Tutto ciò fa da base per il livello informativo "opere" costituito dalle informazioni inerenti le opere, i manufatti, gli impianti o gli interventi realizzati dal Consorzio CBMG, tra cui almeno la localizzazione geografica e l'estensione (lineare o areale). Detto livello costituisce una sorta di cabina di regia delle opere di cui CBMG dispone per la mitigazione del rischio idrogeologico (argini, difese spondali, rimboschimenti, idrovore, etc...), in cui sono contenute e possono essere aggiornate tutte le informazioni utili, tra cui quelle geometriche, temporali (inerenti ad esempio le fasi di progettazione, realizzazione, collaudo, manutenzione e ripristino funzionale) ed economiche.
Studio idrogeologico per l’analisi di rischio per la discarica sita in località Contrada Martucci, comune di Conversano (Bari) – III Relazione Tecnica di progresso
Polemio Maurizio (Responsabile Scientifico), Limoni Pier Paolo, Romanazzi Andrea, Zuffianò Livia Emanuela, 2015, Studio idrogeologico per l’analisi di rischio per la discarica sita in località Contrada Martucci, comune di Conversano (Bari) – III Relazione Tecnica di progresso,
2015,
Abstract
La società "Progetto Gestione Bacino Bari Cinque s.r.l." ha affidato
all'Istituto di Ricerca per la Protezione ...
La società "Progetto Gestione Bacino Bari Cinque s.r.l." ha affidato
all'Istituto di Ricerca per la Protezione Idrogeologica del CNR (CNR-IRPI) la
redazione dello studio idrogeologico per l'analisi di rischio del sito in cui è
collocata la discarica della medesima società, posta in località Contrada
Martucci, comune di Conversano (Bari). Il sito in oggetto dista circa 4,5 km in
direzione nord-ovest dall'abitato di Conversano. Nel sito ricade l'impianto per il
trattamento e lo smaltimento di rifiuti solidi urbani della Società Progetto
Ambiente Bacino Bari Cinque s.r.l..
Lo studio è svolto dal personale dell'Unità Organizzativa di Supporto di
Bari del CNR IRPI, sotto la responsabilità scientifica del Dott. Maurizio Polemio
La presente relazione illustra, in modo sintetico, i risultati del terzo ciclo di
campionamento delle acque di falda effettuato da CNR-IRPI. L'attenzione è
posta sui dati direttamente acquisiti in sito dal CNR-IRPI e, in generale, è data
alla descrizione delle attività di sito.
Il campionamento delle acque sotterranee ha interessato 11 pozzi di
proprietà pubblica e privata, ubicati nell'intorno delle discarica, sia a valle che a monte (1) della stessa, in un area di circa 25 km2.
Una molteplicità di approcci a supporto della mitigazione dei rischi idrogeologici perseguita dai Consorzi di Bonifica (Gargano, Puglia)
Vittoria Dragone, Marco Muciaccia, Alessia Basso, Luciano Ciciretti, Mauro Palombella, Maurizio Polemio, 2015, Una molteplicità di approcci a supporto della mitigazione dei rischi idrogeologici perseguita dai Consorzi di Bonifica (Gargano, Puglia),
Le Giornate dell'Idrologia, Perugia, 6-8 ottobre 2015,
Abstract
Il Progetto GarganoLab ovvero "Sistema informativo integrato per la gestione del territorio, il monitoraggio ambientale ...
Il Progetto GarganoLab ovvero "Sistema informativo integrato per la gestione del territorio, il monitoraggio ambientale ed allerta di emergenza", finanziato dalla Regione Puglia grazie alle misure "Living Labs", è stato concepito dal consorzio tra le imprese Staer Sistemi, W-Enterprise e Gemict a supporto della domanda di innovazione tecnologica del Consorzio di Bonifica Montana del Gargano (CBMG), al fine di perseguire la riduzione dei rischi idrogeologici e l'ottimale gestione delle opere di mitigazione. La nota descrive il contributo offerto in particolare dal partner di progetto, il Laboratorio di Idrologia del CNR-IRPI.
Il progetto ha perseguito la mitigazione dei rischi naturali, dovuti a frane e, soprattutto, piene, e gli effetti della siccità nel territorio del Consorzio di Bonifica Montana del Gargano, con maggiore dettaglio nelle zone più esposte, come il bacino idrografico Molinella di Vieste, drammaticamente interessato anche dal più recente evento alluvionale, occorso nel Gargano dall'1 al 6/9/2014.
II Technical Report of progress -Checklist
Francesca Santaloia, Vittoria Dragone, Pier Paolo Limoni, Andrea Romanazzi, Livia Emanuela Zuffianò, Maurizio Polemio (Responsabile Scientifico), 2015, II Technical Report of progress -Checklist,
2015,
Abstract
This Technical Report is a part of the activities realised for the Cooperation Covenant ...
This Technical Report is a part of the activities realised for the Cooperation Covenant "Formulation of a framework to guide the development of a numerical groundwater model to estimate the sustainable yield of the main sea level aquifer system", agreed between the Research Institute for Geo-Hydrological Protection (Istituto di Ricerca per la Protezione Idrogeologica) of the Italian National Research Council (Consiglio Nazionale delle Ricerche, CNR), thereinafter CNR IRPI, and the Maltese Sustainable and Water Conservation Unit of Ministry for Energy and Health, thereinafter SEWCU. SEWCU within the Ministry for Energy and Health is currently undertaking the development of Malta's 2nd River Basin Management Plan under the implementation process of the EU's Water Framework Directive. This process will identify a set of measures addressing the qualitative and quantitative status of groundwater, with the aim of ensuring the achievement of good status for the resource. The achievement of good quantitative status is assessed by means of a water balance calculation, which compares inputs and outputs from the groundwater system. The system inputs define the sustainable yield of the particular groundwater system, where for the achievement of good status system outputs must not exceed this sustainable level. The final purpose of the cooperation will be the numerical modelling of the Maltese coastal aquifer system to permit the sustainable management of groundwater resources considering the effects of climate change, including the variability of recharge, sea level and seawater salinity. The process could be utilised to define reliable figures for the safe-yield from these aquifers and the establishment of annual groundwater abstraction thresholds or optimal discharge schema utilising scientific up-to-date methodological approaches.
Le Grandi Frane della Città del Vasto
Trizzino Rosamaria, 2015, Le Grandi Frane della Città del Vasto,
, pp. 9–10. Vasto_ Cannarsa Editoria-grafica, 2015,
Abstract
Molto interessante è l'analisi storica che Daniele Taddei propone in queste pagine, fornendo una ...
Molto interessante è l'analisi storica che Daniele Taddei propone in queste pagine, fornendo una visione d'insieme ed una "lettura esperta" degli eventi franosi che hanno ripetutamente e pesantemente colpito il territorio della Città del Vasto. Di particolare interesse e valenza scientifica è la ricostruzione del modello geologico-evolutivo del versante orientale di Vasto, a partire dal Pleistocene medio (250.000 anni fa), quando ha avuto inizio l'emersione del territorio vastese. L'analisi degli step evolutivi del versante, correlati alle curve eustatiche di variazione del livello del mare e dell'insolazione del settore adriatico, rappresenta un risultato innovativo e originale, basato su solide argomentazioni scientifiche, che risulta fondamentale per la comprensione dei meccanismi alla base dei fenomeni di frana che oggi flagellano questo territorio.
Esperienze di rilievi UAV per la prevenzione del rischio ambientale
Caprioli Mauro, Trizzino Rosamaria, 2015, Esperienze di rilievi UAV per la prevenzione del rischio ambientale,
XIX Conferenza Nazionale ASITA, pp. 215–216, Lecco (Italy), 29 settembre-1 ottobre 2015,
Abstract
Nel presente lavoro vengono esposti i risultati di alcuni rilievi effettuati con sistema UAV in ...
Nel presente lavoro vengono esposti i risultati di alcuni rilievi effettuati con sistema UAV in due
zone del territorio pugliese, affette da gravi problematiche ambientali. I rilievi sono stati
eseguiti con un "esacottero" munito di fotocamera CANON EOS 550D e sistema di
posizionamento satellitare GNSS. Nel primo caso il rilievo è stato effettuato su una torre di
avvistamento aragonese in una zona costiera di grande interesse per il patrimonio
artistico-culturale della regione Puglia, in località San Vito, Polignano a Mare (Bari).
Successivamente, è stato eseguito il rilievo di un tratto di costa rocciosa del Salento
(Puglia meridionale), affetta da gravi rischi ambientali dovuti al possibile crollo di
elementi rocciosi, denominati "falesie". L'elevata accuratezza delle immagini ottenute dal rilievo
ed elaborate con Agisoft Photoscan ha permesso di individuare elementi fondamentali per la
caratterizzazione e l'analisi della stabilità di ciascun sito.
MANAGEMENT OF ENVIRONMENTAL RISKS IN COASTAL AREAS
Caprioli M., Trizzino R. , Pagliarulo R., Scarano M., Mazzone F., Scognamiglio A., 2015, MANAGEMENT OF ENVIRONMENTAL RISKS IN COASTAL AREAS,
ISPRS Geospatial Week 2015, edited by S. Zlatanova, G. Sithole, M. Nakagawa, and Q. Zhu, pp. 263–268. London_ ISPRS Council - London, 2015,
Abstract
The present work deals with the assessment and management of environmental risk conditions in a ...
The present work deals with the assessment and management of environmental risk conditions in a
typical costal area of Southern
Italy. This area, located in the Salento peninsula, is subject to recurrent widespread instability
phenomena due to the presence of steep rocky cliffs. Along the coast there are numerous beach
resorts that are very crowded in the summer season. The environmental hazard deriving from the
possible rock falls is unacceptably high for the people safety. Moreover, the land-based mapping of
the dangerous natural structures is very difficult and time and resources expending. In this
context, we carried out an UAV survey along about 1 km of coast, near the towns of San Foca, Torre
dell'Orso and Sant' Andrea ( Lecce, Southern Italy). 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 total error obtained was of centimeter-order that is a very satisfactory
result. The environmental information has been arranged in an ArcGIS platform in order to assess
the risk levels. The possibility to repeat the survey at time intervals more or less close together
depending on the measured levels of risk and to compare the output allows following the trend of
the dangerous phenomena. In conclusion, for inaccessible locations of dangerous rocky bodies the
UAV survey coupled with a GIS methodology proved to be a key engineering tool for the management of
environmental risks.
STUDIO IDROGEOLOGICO PER L’ANALISI DI RISCHIO PER LA DISCARICA SITA IN LOCALITÀ CONTRADA MARTUCCI, COMUNE DI CONVERSANO (BARI) – II Relazione Tecnica di progresso
Polemio Maurizio (Responsabile Scientifico)
Romanazzi Andrea
Zuffianò Livia Emanuela
Limoni Pier Paolo, 2015, STUDIO IDROGEOLOGICO PER L’ANALISI DI RISCHIO PER LA DISCARICA SITA IN LOCALITÀ CONTRADA MARTUCCI, COMUNE DI CONVERSANO (BARI) – II Relazione Tecnica di progresso,
2015,
Abstract
L'Istituto di Ricerca per la Protezione Idrogeologica del CNR (CNR-IRPI) ha assunto il compito della ...
L'Istituto di Ricerca per la Protezione Idrogeologica del CNR (CNR-IRPI) ha assunto il compito della redazione dello studio idrogeologico di base per l'analisi di rischio del sito in cui è collocata una discarica posta in località Contrada Martucci, comune di Conversano (Bari). Il sito in oggetto dista circa 4,5 km in direzione nord-ovest dall'abitato di Conversano. Nel sito ricade l'impianto per il trattamento e lo smaltimento di rifiuti solidi urbani della Società Progetto Ambiente Bacino Bari Cinque s.r.l..
La presente relazione illustra, in modo sintetico, i risultati del secondo ciclo di campionamento delle acque di falda effettuato da CNR-IRPI. L'attenzione è posta sui dati direttamente acquisiti in sito dal CNR-IRPI e, in generale, è data alla descrizione delle attività di sito. Si integra la relazione con alcune elaborazioni geochimiche di natura grafica di alcuni parametri determinati dai laboratori che hanno analizzato i campioni prelevati da CNR-IRPI che ne confermano la validità.
Il campionamento delle acque sotterranee ha interessato 12 pozzi di proprietà pubblica e privata, ubicati nell'intorno delle discarica sia a valle che a monte della stessa in un area di circa 25 km2.
UAV Surveys for Representing and Document the Cultural Heritage
Mauro CAPRIOLI*, Francesco MANCINI**, Francesco MAZZONE***, Mario Scarano***, Rosamaria TRIZZINO****, 2015, UAV Surveys for Representing and Document the Cultural Heritage,
Le Vie dei Mercanti _ XIII Forum Internazionale di Studi - HERITAGE and TECHNOLOGY Mind Knowledge Experience, pp. 476–483, Aversa-Capri, Italy, 11-13 June, 2015,
Abstract
The new survey techniques allow for a more detailed depiction of the characteristics of the ...
The new survey techniques allow for a more detailed depiction of the characteristics of the cultural heritage of which our country is so rich. Unmanned Aerial Vehicles (UAV) are emerging as a key engineering tool for future environmental survey tasks. UAV aerial imagery offers both timely (on demand) and more detailed (higher resolution) information than comparable satellite imagery. In the present study the opportunities of obtaining more detailed documentation of cultural goods throughout UAV survey have been investigated. The survey was conducted on 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) (Fig.1). The high resolution of the produced images, approximately 1 cm x pixels, allows to obtain all elements of both structural and qualitative information required for a conservative restoration project of the monument. The peculiarity of the transportation vehicle of the camera has also made it possible to detect the top surface of the roof covering of the building, normally not accessible, with the presence of a chimney and an access hatch, on which to intervene for the proper disposal of rainwater. The research refers to the metric characteristics, accuracy, level of detail, the particular crack patterns, etc., reachable by photogrammetric methods, with the help of dedicated software (PHOTOSCAN) comparable with the methodologies of Computer Vision.
Formulation of a framework to guide the development of a numerical groundwater model to estimate the sustainable yield of the main sea level aquifer system. Technical Report of progress
Francesca Santaloia
Andrea Romanazzi
Pier Paolo Limoni
Maurizio Polemio, 2015, Formulation of a framework to guide the development of a numerical groundwater model to estimate the sustainable yield of the main sea level aquifer system. Technical Report of progress,
2015,
Abstract
This Technical Report is part of the activities realised for the Cooperation Covenant "Formulation of ...
This Technical Report is part of the activities realised for the Cooperation Covenant "Formulation of a framework to guide the development of a numerical groundwater model to estimate the sustainable yield of the main sea level aquifer system", agreed between the Research Institute for Geo-Hydrological Protection (Istituto di Ricerca per la Protezione Idrogeologica) of the Italian National Research Council (Consiglio Nazionale delle Ricerche, CNR), thereinafter CNR IRPI, and the Maltese Sustainable and Water Conservation Unit of Ministry for Energy and Health, thereinafter SEWCU.
SEWCU within the Ministry for Energy and Health is currently undertaking the development of Malta's 2nd River Basin Management Plan under the implementation process of the EU's Water Framework Directive. This process will identify a set of measures addressing the qualitative and quantitative status of groundwater, with the aim of ensuring the achievement of good status for the resource.
The achievement of good quantitative status is assessed by means of a water balance calculation, which compares inputs and outputs from the groundwater system. The system inputs define the sustainable yield of the particular groundwater system, where for the achievement of good status system outputs must not exceed this sustainable level.
The final purpose of the cooperation will be the numerical modelling of the Maltese coastal aquifer system to permit the sustainable management of groundwater resources considering the effects of climate change, including the variability of recharge, sea level and seawater salinity. The process could be utilised to define reliable figures for the safe-yield from these aquifers and the establishment of annual groundwater abstraction thresholds or optimal discharge schema utilising scientific up-to-date methodological approaches.
The first phase of activities includes a data exchange and a visit of the Italian research group to Malta to share the type and the amount of available rough data, technical surveys on the aquifers and technical discussions of both research groups to delineate the schematic characteristics of the activities to define the conceptualisation and modelling of Maltese aquifers and the type of results to be obtained with the modelling.
This Report summarizes the results capitalised after the visit of the Italian research group to Malta.
SISTEMA INFORMATIVO INTEGRATO PER LA GESTIONE DEL TERRITORIO, IL MONITORAGGIO AMBIENTALE E L’ALLERTA DI EMERGENZA. RELAZIONE FINALE
Alessia Basso
Vittoria Dragone
Mauro Palombella
Maurizio Polemio, 2015, SISTEMA INFORMATIVO INTEGRATO PER LA GESTIONE DEL TERRITORIO, IL MONITORAGGIO AMBIENTALE E L’ALLERTA DI EMERGENZA. RELAZIONE FINALE,
2015,
Abstract
Questa Relazione è stata redatta nell'ambito dell'iniziativa "GarganoLab", nel cui contesto si riferisce al Progetto ...
Questa Relazione è stata redatta nell'ambito dell'iniziativa "GarganoLab", nel cui contesto si riferisce al Progetto "Sistema informativo integrato
per la gestione del territorio, il monitoraggio ambientale ed allerta di emergenza", finanziato dalla Regione Puglia grazie alla misura "Living Labs
SMARTPUGLIA 2020", definita per il P.O. FESR Puglia 2007-2013, Asse I, Linea di Intervento 1.4, Azione 1.4.2.
La Relazione finale, così come previsto dal suddetto Contratto, chiude le attività previste.
Tidal Notches in Mediterranean Sea_ a comprehensive analysis
F. Antonioli (a), V. Lo Presti( b, a), , A. Rovere (c, d), L. Ferranti (e),
M. Anzidei (f), S.Furlani (g), G.Mastronuzzi (h), P. E. Orru (i),
G.Scicchitano (j), G. Sannino (a), C. R. Spampinato (k), R. Pagliarulo (l),
G. Deiana (i), E. de Sabata (m), P. Sansò ( n), M. Vacchi (o), A. Vecchio (f), 2015, Tidal Notches in Mediterranean Sea_ a comprehensive analysis,
Quaternary science reviews 119 (2015): 1–19. doi_10.1016/j.quascirev.2015.03.016,
DOI: 10.1016%2Fj.quascirev.2015.03.016
Abstract
Recent works (Evelpidou et al., 2012) suggest that the modern tidal notch is disappearing worldwide ...
Recent works (Evelpidou et al., 2012) suggest that the modern tidal notch is disappearing worldwide due
sea level rise over the last century. In order to assess this hypothesis, we measured modern tidal notches
in several of sites along the Mediterranean coasts. We report observations on tidal notches cut along
carbonate coasts from 73 sites from Italy, France, Croatia, Montenegro, Greece, Malta and Spain, plus
additional observations carried outside the Mediterranean. At each site, we measured notch width and
depth, and we described the characteristics of the biological rim at the base of the notch. We correlated
these parameters with wave energy, tide gauge datasets and rock lithology.
Our results suggest that, considering 'the development of tidal notches the consequence of midlittoral
bioerosion' (as done in Evelpidou et al., 2012) is a simplification that can lead to misleading results, such
as stating that notches are disappearing. Important roles in notch formation can be also played by wave
action, rate of karst dissolution, salt weathering and wetting and drying cycles. Of course notch formation
can be augmented and favoured also by bioerosion which can, in particular cases, be the main
process of notch formation and development.
Our dataset shows that notches are carved by an ensemble rather than by a single process, both today
and in the past, and that it is difficult, if not impossible, to disentangle them and establish which one is
prevailing. We therefore show that tidal notches are still forming, challenging the hypothesis that sea
level rise has drowned them.
Studio idrogeologico per l’analisi di rischio per la discarica sita in località contrada martucci, Comune di Conversano (Bari). I Relazione tecnica di progresso
Polemio M. (Responsabile Scientifico), Limoni P.P., Romanazzi A., Zuffianò L.., 2015, Studio idrogeologico per l’analisi di rischio per la discarica sita in località contrada martucci, Comune di Conversano (Bari). I Relazione tecnica di progresso,
2015,
Abstract
La società "Progetto Gestione Bacino Bari Cinque s.r.l." ha affidato all'Istituto di Ricerca per la ...
La società "Progetto Gestione Bacino Bari Cinque s.r.l." ha affidato all'Istituto di Ricerca per la Protezione Idrogeologica del CNR (CNR-IRPI) la redazione dello studio idrogeologico per l'analisi di rischio del sito in cui è collocata la discarica della medesima società, posta in località Contrada Martucci, comune di Conversano (Bari). Il sito in oggetto dista circa 4,5 km in direzione nord-ovest dall'abitato di Conversano. Nel sito ricade l'impianto per il trattamento e lo smaltimento di rifiuti solidi urbani della Società Progetto Ambiente Bacino Bari Cinque s.r.l.. Lo studio è svolto dal personale dell'Unità Organizzativa di Supporto di Bari del CNR IRPI, sotto la responsabilità scientifica del Dott. Maurizio Polemio La presente relazione illustra, in modo sintetico, i risultati del terzo ciclo di campionamento delle acque di falda effettuato da CNR-IRPI. L'attenzione è posta sui dati direttamente acquisiti in sito dal CNR-IRPI e, in generale, è data alla descrizione delle attività di sito. Il campionamento delle acque sotterranee ha interessato 11 pozzi di proprietà pubblica e privata, ubicati nell'intorno delle discarica, sia a valle che a monte (1) della stessa, in un area di circa 25 km2.
Instability processes in slopes location of intensely fissured clays_ case histories in the southern Apennines
Cotecchia, C. Vitone, F. Santaloia, G. Pedone, O. Bottiglieri, 2015, Instability processes in slopes location of intensely fissured clays_ case histories in the southern Apennines,
Landslides (Berl., Print) (2015). doi_10.1007/s10346-014-0516-7,
DOI: 10.1007%2Fs10346-014-0516-7
Abstract
In slopes formed by tectonized clayey turbidites, the soil fissuring recurrently influences the hydro-mechanical soil ...
In slopes formed by tectonized clayey turbidites, the soil fissuring recurrently influences the hydro-mechanical soil properties, determining an impoverishment in strength and an increase in permeability of the slope that make them predisposing factors of landsliding. This paper presents three case histories of slopes within tectonized clayey turbidites that are representative of several others in the Southern Apennines and, more widely, in the southern Mediterranean. The paper reports a novel attempt to connect tightly the slope geomorphological and hydromechanical features to the slope geological history, through an introductory presentation of the geological setting and history of
the chain where the slopes occur. The slopes, location of very slow landslides, have been reconstructed based upon field surveys and
investigations, multi-aerial photo-interpretation, laboratory testing, monitoring and numerical modelling. Furthermore, novel is the attempt to present, all together, the behaviour of the soils involved in the three landslide case studies, in the light of the mechanical modelling approach to fissured clays recently presented in the literature.
Hydrogeological characterization of a geothermal system_ the case of the thermo-mineral area of Mondragone (Campania Italy)
Corniello A. , Cardellicchio N., Cavuoto G., Cuoco E., Ducci D., Minissale A., Mussi A. Petruccione E., Pelosi N., Rizzo E., Polemio M., Tamburrino S., Tedesco D., Tiano P. Iorio M., 2015, Hydrogeological characterization of a geothermal system_ the case of the thermo-mineral area of Mondragone (Campania Italy),
International journal of environmental of research. (Print) 9 (2015): 523–534. doi_10.22059/ijer.2015.926,
Abstract
This paper deals with thermo-mineral groundwater of the Mondragone plain (Campania, southern Italy) and the ...
This paper deals with thermo-mineral groundwater of the Mondragone plain (Campania, southern Italy) and the possibility of exploitation of this low enthalpy geothermal resource.
In the NW sector of this plain, at the bottom of Mt. Pizzuto, near the sea, there are thermo-mineral waters of sodium-chloride type, sulfureous and rich in CO2 whose recharge is from the Mt. Pizzuto groundwater body which somehow floating on seawater. In the SE sector of the plain, close to the calcareous Mt. Petrino, a 80 m deep well has intercepted, in the carbonate basement of the plain, thermo-mineral groundwater, sulfureous and rich in CO2, as in the NW sector, but displaying a calcium-bicarbonate composition. The chemical and the isotopic analyses allowed to verify that these types of groundwater are due both to meteoric waters infiltration and to enrichment of endogenous CO2 and H2S, at fairly high temperature.
In the case of Mt. Pizzuto, the upwelling gas intercepts evaporitic formation and, probably, causes saltwater intrusion, with a peak from June to September. In the case of the Petrinum well, the gases involve "saline formation groundwater", affecting upwards the groundwater body of Mt. Petrino. Moreover, the rising of the gases increases the dissolution of the carbonate aquifer, determining very high values of HCO3 ions in the thermo-mineral groundwater. The upwelling of the gases occurs along the major fault that crosses NE-SW the plain of Mondragone at the southern edge of the Mt. Petrino.
Finally, the understanding of the mineralization patterns allowed to identify in the plain the best location for a geothermal exploration well.
The historical use of water resources in karst
Parise M., Sammarco M., 2015, The historical use of water resources in karst,
Environmental earth sciences (Print) 74 (2015): 143–152. doi_10.1007/s12665-014-3685-8,
DOI: 10.1007%2Fs12665-014-3685-8
Abstract
Karst landscapes are characterized by lack or scarce presence of water at the surface. Ancient ...
Karst landscapes are characterized by lack or scarce presence of water at the surface. Ancient populations had, therefore, to face the issue of water availability by gaining a deep knowledge of the territories where they settled. Several techniques were developed at this aim, until reaching a high level of capability to collect, transport, and distribute water, even at long distances. Many areas in southern Italy still nowadays present hydraulic works of remarkable interest and historical values, most of which develop underground for long stretches. The present paper is an overview of the main ancient works designed
and built by man to exploit water resources in karst; it describes some examples of surface channels and underground aqueducts, together with other features used for water storage in karst. The lessons learned from the ability of ancient populations to use water resources in a sustainable way are worthy to be re-evaluated nowadays, in times when we are periodically facing hydric crisis and droughts.
UAV aerial surveys for the representation and documentation of cultural heritage
Mauro CAPRIOLI *, Francesco MANCINI*, Francesco MAZZONE** & Rosamaria TRIZZINO ***, 2015, UAV aerial surveys for the representation and documentation of cultural heritage,
XIII International Forum "Le Vie dei Mercanti" - Heritage and Technology, Aversa - Capri, 11-13 June 2015,
SISTEMA INFORMATIVO INTEGRATO PER LA GESTIONE DEL TERRITORIO, IL MONITORAGGIO AMBIENTALE E L’ALLERTA DI EMERGENZA. I RELAZIONE TECNICA DI PROGRESSO
Polemio M.
Basso A.
Dragone V.
Palombella M., 2015, SISTEMA INFORMATIVO INTEGRATO PER LA GESTIONE DEL TERRITORIO, IL MONITORAGGIO AMBIENTALE E L’ALLERTA DI EMERGENZA. I RELAZIONE TECNICA DI PROGRESSO,
2015,
Passive Seismic Techniques for the Assessment of Dynamic Slope Stability Conditions.
Vincenzo Del Gaudio, Sandro Muscillo, Janusz Wasowski, 2015, Passive Seismic Techniques for the Assessment of Dynamic Slope Stability Conditions.,
Engineering Geology for Society and Territory, edited by G. Lollino et al., pp. 357–361. CH-6330 Cham (ZG): Springer International Publishing, 2015,
Abstract
Slope stability analysis in seismically active areas must take into consideration the influence of
site response ...
Slope stability analysis in seismically active areas must take into consideration the influence of
site response during earthquakes. While widespread accelerometer monitoring of slopes
appears impractical, it is possible to derive information relevant for stability conditions from
passive seismic techniques based on the acquisition and analysis of ambient noise generated
by natural and anthropic sources. A useful technique is Nakamura's method, which consists in
analysing ratios between horizontal (H) and vertical (V) component spectra of noise
recordings. An analysis of azimuthal variation of H/V can reveal directional resonance
phenomena affecting slope areas, providing the frequency and direction of maximum ground
motion amplification. Determination of site response properties from seismic noise mainly
depends on the identification of polarisation direction and ellipticity of Rayleigh waves.
However, in ambient noise records only part of acquired signals may show coherent
characteristics referable to Rayleigh waves. Thus, it is useful to develop techniques that allow
selecting, within noise recordings, wave trains that can be reliably identified as Rayleigh
waves. A new promising technique is based on the identification of instantaneous polarisation
properties from analytical signal transformation. The study of slope dynamic response to
shaking can also benefit from the analysis of cross-correlation among simultaneous noise
recordings. This type of analysis provides dispersion curves for Rayleigh waves, which can
then be used to constrain S-wave velocity models and, consequently, to infer mechanical
properties of slope materials.
Data from https://intranet.cnr.it/people/
