http://hdl.handle.net/2122/166 Ricerca nel canale cerca http://www.earth-prints.org/simple-search http://hdl.handle.net/2122/6083 Titolo: Configurazione del PC di comando per stazioni di monitoraggio geochimico di tipo GMS II<br/><br/>Autori: Galli, Gianfranco; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Cinti, Daniele; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Di Stefano, Giuseppe; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Pizzino, Luca; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Pongetti, Francesco; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Quattrocchi, Fedora; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Sciacca, Umberto; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Voltattorni, Nunzia; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia<br/><br/>Abstract: Questo manuale intende fornire le indicazioni necessarie alla corretta configurazione del BIOS edel software del PC dedicato al monitoraggio geochimico con stazioni di tipo GMS II. Per ladescrizione dettagliata di tali stazioni e del relativo software di comando si rimanda ad altrepubblicazioni [1,2]. Si farà riferimento ad un PC equipaggiato con una scheda madre ASUS Mod.CUSI-FX/533/WA/2P-UAY scelta oltre che per ragioni di compattezza anche per alcune suepeculiarità che consentono l’acquisizione dati in assenza di un monitor ed un’opportuna gestioneenergetica per fronteggiare improvvise interruzioni dell’alimentazione elettrica. Wed, 01 Jan 2003 00:00:00 GMT http://hdl.handle.net/2122/6074 Titolo: Monitoring and methods to analyse the groundwater quality degradation risk in coastal karstic aquifers (Apulia, Southern Italy)<br/><br/>Autori: Polemio, M.; CNR-IRPI; Dragone, V.; CNR-IRPI; Limoni, P.P.; CNR-IRPI<br/><br/>Abstract: A multi-methodological approach based on monitoring and spatio-temporal analysis of groundwater quality changes is proposed. The presented tools are simple, quick and cost-effective to give service to all sorts of users. The chief purpose of the monitoring network is the detection of the piezometric or potenziometric level in the aquifer. The spatial and multi-temporal analysis of usual chemical and physical data provides both an assessment of the spatial vulnerability of the aquifer to seawater intrusion, defining a salinity threshold between fresh groundwater and brackish groundwater and of the water quality trend in terms of salinity. The evaluation of the salinity trend or of salinity-correlated parameters highlights the effects of groundwater mismanagement. The multiparameter logging provides a rapid groundwater quality classification for each well. The whole approach allows evaluating the effects of current management criteria and designing more appropriate management targets. The Apulian karstic coastal aquifers have been selected as a case study (Southern Italy). Three types of aquifer zones can be distinguished: (1) areas with low vulnerability to seawater intrusion, (2) areas with high vulnerability and (3) areas with variable vulnerability in which the salt degradation largely depends on the ability to manage the well discharge. The water quality degradation caused by seawater intrusion appears to be a combined effect of an anomalous succession of drought periods observed from about 1980 onwards and increased groundwater pumping, particularly during drought periods. A management criterion based on aquifer zones is proposed. Thu, 01 Jan 2009 00:00:00 GMT http://hdl.handle.net/2122/6027 Titolo: Estimation of the magmatic gas and heat flux through the Etnean volcanic aquifer<br/><br/>Autori: D'Alessandro, W.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia<br/><br/>Abstract: Etna volcano, Italy, hosts one of the major groundwater systems of the island of Sicily. Waters circulate withinhighly permeable fractured, mainly hawaiitic, volcanic rocks. Aquifers are limited downwards by the underlyingimpermeable sedimentary terrains. Thickness of the volcanic rocks generally does not exceed some 300 m,preventing the waters to reach great depths. This is faced by short travel times (years to tens of years) and lowthermalisation of the Etnean groundwaters. Measured temperatures are, in fact, generally lower than 25 °C. Butthe huge annual meteoric recharge (about 0.97 kmˆ3) with a high actual infiltration coefficient (0.75) implies agreat underground circulation. During their travel from the summit area to the periphery of the volcano, watersacquire magmatic heat together with volcanic gases and solutes through water-rock interaction processes.In the last 20 years the Etnean aquifers has been extensively studied. Their waters were analysed for dissolvedmajor, minor and trace element, O, H, C, S, B, Sr and He isotopes, and dissolved gas composition. These data havebeen published in several articles. Here, after a summary of the obtained results, the estimation of the magmaticheat flux through the aquifer will be discussed.To calculate heat uptake during subsurface circulation, for each sampling point (spring, well or drainage gallery)the following data have been considered: flow rate, water temperature, and oxygen isotopic composition. Thelatter was used to calculate the mean recharge altitude through the measured local isotopic lapse rate. Meanrecharge temperatures, weighted for rain amount throughout the year, were obtained from the local weather stationnetwork. Calculations were made for a representative number of sampling points (216) including all major issuesand corresponding to a total water flow of about 0.315 kmˆ3/a, which is 40% of the effective meteoric recharge.Results gave a total energy output of about 140 MW/a the half of which is ascribable to only 13 sampling points.These correspond to the highest flow drainage galleries with fluxes ranging from 50 to 1000 l/s and wells withpumping rates from 70 to 250 l/s. Geographical distribution indicates that, like magmatic gas leakage, heat flowis influenced by structural features of the volcanic edifice. The major heat discharge through groundwater are alltightly connected either to the major regional tectonic systems or to the major volcanic rift zones along whichthe most important flank eruptions take place. But rift zones are much more important for heat upraise due to thefrequent dikes injection than for gas escape because generally when dikes have been emplaced the structure is nomore permeable to gases because it becomes sealed by the cooling magma. Sun, 02 May 2010 00:00:00 GMT http://hdl.handle.net/2122/6019 Titolo: Tecnologie avanzate per il monitoraggio e la gestione sostenibile delle risorse idriche sotterranee: il caso Puglia<br/><br/>Autori: Polemio, M.; CNR-IRPI; Dragone, V.; CNR-IRPI; Limoni, P.P.; CNR-IRPI<br/><br/>Curatori: Ciani, A.; Università di Perugia<br/><br/>Abstract: The scientific activity carried out in recent years by CNR IRPI (Department of Bari) is finalized to develop methodologies and knowledge to optimize the management and safeguard of Apulian groundwater resources. In Apulia there are four hydrogeological units (Gargano, Tavoliere, Murgia and Salento). They exhibit varying geological, structural and morphological features. Apart from Puglia Tableland (Tavoliere), the remaining hydrogeological units share some common features. They consist of large and coastal aquifers, mainly constituted by carbonate rocks of Mesozoic age. In both the Gargano Promontory (Gargano) and the low Murge Plateau (Murgia) aquifers are under pressure except on a restricted coastline strip. In the Salentine Peninsula (Salento), subsurface water flow under phreatic conditions is prevailing. Finally, Puglia Tableland hydrogeological unit consists of a large porous aquifer; groundwater flows under phreatic conditions in the most internal and upstream portion, whereas it flows under pressure in the remaining part of the unit.The rapid socio-economic growth, which has occurred in the past decades, has continued to stress conditions in the Apulian hydrogeological system in Southern Italy, thereby leading to different hazardous conditions. Groundwater for domestic, irrigation and industrial use has been withdrawn in large quantities over the years. The aquifers are increasingly becoming the ultimate "receptacle" for wastewater. Apulia is affected by two types of human-related pollution: salt contamination which is spreading over large portions of land, that reducing the availability of good quality water and chemico-physical and biological pollution which is mainly confined to urban areas.The described approach and methodologies are: automatic monitoring network, numerical modeling, schematic mapping of groundwater quality with commonly available data, multiparameter well logging for rapid groundwater quality classification, groundwater vulnerability assessment, salinity trend analysis to evaluate the variation of seawater intrusion and the analysis of long time series finalized to quantify the modification of groundwater availability. Tue, 01 Jan 2002 00:00:00 GMT http://hdl.handle.net/2122/5914 Titolo: GIS and remote sensing techniques integration aimed forthe evaluation of the Esino catchment impact on coastalwater quality<br/><br/>Autori: Brunori, Carlo Alberto; Istituto di Ricerca sul Rischio Sismico/CNR (Italy); Oliveri, Stefano; Istituto di Ricerca sul Rischio Sismico/CNR (Italy); Luzi, Lucia; Lucia Luzi; Zilioli, Eugenio; Istituto di Ricerca sul Rischio Sismico/CNR (Italy)<br/><br/>Curatori: Cecchi, Giovanna; Zilioli, Eugenio; Istituto di Ricerca sul Rischio Sismico/CNR (Italy)<br/><br/>Abstract: The main aim of this work, carried out in the framework of the PRISMA2 national researchprogram (Research and Experimentation Program for the Adriatic Sea) was the definition ofan appropriate working methodology which allowed to estimate the impact of the Esinodrainage-basin (central Italy), and of the anthropic activities lying on it, on the coastalwater quality of the Adriatic sea. This aim was pursued by integrating techniques andinstruments of analyses, such as GIS and remote sensing, which are often and oftenemployed in natural resources managing and planning. They allowed to generate adatabase easily updating, relative to a very large area which is strongly differentiated in itsnatural and anthropic features. The database contains raw data, provided by local publicorganizations managing the territory, information derived from elaboration of the previousdata and remote sensed frames (acquired by the hyperspectral sensor MIVIS) purposelyacquired to the aim of the study. It was after all generated an 'open' system, continuallyupdating with environmental information before long available; moreover, were exploredthe potentialities of the MIVIS sensor (102 band, from the visible to the thermic IR) in thestudy of marine coastal water quality. Mon, 21 Sep 1998 00:00:00 GMT http://hdl.handle.net/2122/5292 Titolo: New geological insights and structural control on fluid circulation in La Fossa cone (Vulcano, Aeolian Islands, Italy)<br/><br/>Autori: Barde-Cabusson, S.; Dipartimento di Scienze della Terra, Università Degli Studi di Firenze, Italy; LMV, Université Blaise Pascal, Clermont-Ferrand, France; Finizola, A.; Laboratoire GéoSciences Réunion, UR, IPGP, UMR 7154, Saint-Denis, La Réunion, France; Istituto Nazionale di Geofisica e Vulcanologia, Palermo, Italy; Revil, A.; Colorado School of Mines, Dept. of Geophysics, Golden, CO, USA; CNRS-LGIT (UMR 5559), University of Savoie, Equipe Volcan, Chambéry, France; Ricci, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; Piscitelli, S.; IMAA-CNR, Laboratory of Geophysics Tito Scalo (PZ), Italy; Rizzo, E.; IMAA-CNR, Laboratory of Geophysics Tito Scalo (PZ), Italy; Angeletti, B.; CNRS-CEREGE, Université Paul Cézanne, Aix en Provence, France; Balasco, M.; IMAA-CNR, Laboratory of Geophysics Tito Scalo (PZ), Italy; Bennati, L.; Dept. of Earth & Atmospheric Sciences, Purdue University, West Lafayette, USA; Byrdina, S.; LMV, Université Blaise Pascal, Clermont-Ferrand, France; Equipe de Géomagnétisme, IPGP, UMR 7154, 4, Place Jussieu, 75005 Paris, France; Carzaniga, N.; Dipartimento di Scienze della Terra, Università Degli Studi di Firenze, Italy; Crespy, A.; CNRS-CEREGE, Université Paul Cézanne, Aix en Provence, France; Di Gangi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Morin, J.; Laboratoire GéoSciences Réunion, UR, IPGP, UMR 7154, Saint-Denis, La Réunion, France; Université Paris 1, Panthéon-Sorbonne, Paris, France; Perrone, A.; IMAA-CNR, Laboratory of Geophysics Tito Scalo (PZ), Italy; Rossi, M.; Dipartimento di Geoscienze, Università di Padova, Italy; Università Milano-Bicocca, Milan, Italy; Roulleau, E.; GEOTOP-UQAM-McGill, Montréal, Canada; Suski, B.; Université de Lausanne (UNIL), Institut de Géophysique, Lausanne, Switzerland; CNRS-CEREGE, Université Paul Cézanne, Aix en Provence, France; Villeneuve, N.; Institut de Recherche pour le Développement, US 140 ESPACE, La Réunion, France<br/><br/>Abstract: Electric resistivity tomography (ERT), self-potential (SP), soil CO2 flux, and temperature are used to study the inner structure of La Fossa cone (Vulcano, Aeolian Islands). Nine profiles were performed across the cone with a measurement spacing of 20 m. The crater rims of La Fossa cone are underlined by sharp horizontalresistivity contrasts. SP, CO2 flux, and temperature anomalies underline these boundaries which we interpret as structural limits associated to preferential circulation of fluids. The Pietre Cotte crater and Gran Cratere crater enclose the main hydrothermal system, identified at the centre of the edifice on the base of lowelectrical resistivity values (b20 Ω m) and strong CO2 degassing, SP, and temperature anomalies. In the periphery, the hydrothermal activity is also visible along structural boundaries such as the Punte Nere, Forgia Vecchia, and Palizzi crater rims and at the base of the cone, on the southern side of the edifice, along a faultattributed to the NW main tectonic trend of the island. Inside the Punte Nere crater, the ERT sections show an electrical resistive body that we interpret as an intrusion or a dome. This magmatic body is reconstructed in 3D using the available ERT profiles. Its shape and position, with respect to the Pietre Cotte crater fault, allows replacing this structure in the chronology of the development of the volcano. It corresponds to a late phase ofactivity of the Punte Nere edifice. Considering the position of the SP, soil CO2 flux, and temperature maxima and the repartition of conductive zones related to hydrothermal circulation with respect to the main structural features, La Fossa cone could be considered as a relevant example of the strong influence of preexistingstructures on hydrothermal fluid circulation at the scale of a volcanic edifice. Thu, 01 Jan 2009 00:00:00 GMT http://hdl.handle.net/2122/5029 Titolo: Evidence of tectonic control on active arc volcanism: the Panarea-Stromboli tectonic link inferred by submarine hydrothermal vents monitoring (Aeolian arc, Italy)<br/><br/>Autori: Heinicke, J.; Sächsische Akademie der Wissenschaften zu Leipzig, Freiberg; Italiano, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Maugeri, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Merkel, B.; TU Bergakademie Freiberg, Department for Geology; Shipek, M.; TU Bergakademie Freiberg, Department for Geology; Braun, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia<br/><br/>Abstract: The combination of the latest geophysical instruments and geochemical methods applied to the arc volcanism (Aeolian islands, Italy) has given new insights on the role of active tectonics on fluids migration. A continuous monitoring of the hydrothermal system off the island of Panarea has shown contemporaneous modifications of the vented fluids and the seismic activity of the nearby Stromboli volcano. The almost contemporary start of the last volcanic crisis at Panarea and Stromboli in 2002, besides the contemporary variation of the 3He/4He ratios at both the islands and the large number of submarine crater-shaped structures at Panarea, bears testimony to interconnections between the volcanic edifices. To confirm a tectonic drive of magmatic fluids over volcanic arcs implies that episodes of volcanic unrest can be triggered by the tectonic activity increasing the volcanic risk for the whole area, and this might be the case of the Stromboli-Panarea volcanic complex Sun, 01 Feb 2009 00:00:00 GMT http://hdl.handle.net/2122/4616 Titolo: Vulnerability of Coastal Aquifers Subjected to Anthropogenic Activities in South-Western Sicily, Italy.<br/><br/>Autori: Aureli, A.; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy; Contino, A.; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy; Cusimano, G.; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy; Di Pasquale, M.; Unità Operativa del G.N.D.C.I.; Gatto, L.; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy; Musumeci, G.; Unità Operativa del G.N.D.C.I.; Pisciotta, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Provenzano, M. C.; Dipartimento di Geologia e Geodesia, Università di Palermo, Italy; Hauser, S.; Dipartimento CFTA, Università di Palermo, Palermo, Italy<br/><br/>Curatori: Witkowski, A. J.; University of Silesia, Sosnowiec, Poland Thu, 01 Jan 2004 00:00:00 GMT http://hdl.handle.net/2122/4158 Titolo: A preliminary analysis of in situ and remotely sensed environmental variables in the coastal region of the Portofino Marine Protected Area<br/><br/>Autori: Manca Zeichen, M.; Central Institute for Marine Research, Rome; Finoia, M. G.; Central Institute for Marine Research, Rome; Locritani, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Ruggieri, N.; University of Genoa; Tunesi, L.; Central Institute for Marine Research, Rome; Gasparini, G. P.; CNR ISMAR; Bassetti, M.; ETD Dept., NURC; Grandi, V.; ETD Dept., NURC; Cattaneo-Vietti, R.; University of Genoa; Povero, P.; University of Genoa<br/><br/>Abstract: Coastal marine environment is a complex system and its management requires adequate information.Marine Protected Areas (MPAs) are considered pilot sites useful to define innovative tools for the IntegratedCoastal Zone Management (ICZM). Their management however requires acquaintance with therelationships between the protected site and the status of the coastal neighbouring areas in order to assessmutual effects and influences. There is the need of monitoring systems capable of highlighting physicaland biological phenomena, and possible oceanographic anomalies at local scale, to assess possible existingdifferences between MPAs and their neighbouring unprotected zones. The present study proposes anintegrated analysis of data sets coming from in situ and remote-sensing data to evaluate the reliabilityof satellite sensors for coastal zone monitoring and to better understand the short-term environmentaldynamics on a coastal area centred on the Portofino MPA (Ligurian Sea). Sun, 01 Jun 2008 00:00:00 GMT http://hdl.handle.net/2122/4127 Titolo: Survey on fluoride, bromide and chloride contents in public drinking water supplies in Sicily (Italy)<br/><br/>Autori: D'Alessandro, W.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Bellomo, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Parello, F.; Università di Palermo, Dipartimento CFTA; Brusca, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Longo, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia<br/><br/>Abstract: Six hundred and sixty-seven water samples were collected from public drinking water supplies in Sicily and analysed for electric conductivity and for their Cl-, Br- and F- contents. The samples were, as far as possible, collected evenly over the entire territory with an average sampling density of about one sample for every 7600 inhabitants. The contents of Cl- and Br-, ranging between 5.53 and 1302 mg/l and between < 0.025 and 4.76 mg/l respectively, correlated well with the electric conductivity, a parameter used as a proxy for water salinity. The highest values were found both along the NW and SE coasts, which we attributed to seawater contamination, and in the central part of Sicily, which we attributed to evaporitic rock dissolution. The fluoride concentrations ranged from 0.023 to 3.28 mg/l, while the highest values (only 3 exceeding the maximum admissible concentration of 1.5 mg/l) generally correlated either with the presence in the area of crystalline (volcanic or metamorphic) or evaporitic rocks or with contamination from hydrothermal activity. Apart from these limited cases of exceeding F- levels, the waters of public drinking water supplies in Sicily can be considered safe for human consumption for the analysed parameters. Some limited concern could arise from the intake of bromide-rich waters (about 3% exceeding 1 mg/l) because of the potential formation of dangerous disinfection by-products. Tue, 01 Jan 2008 00:00:00 GMT