http://hdl.handle.net/2122/169 2013-05-24T11:09:25Z http://hdl.handle.net/2122/8459 Title: NEMO-SN1 (Western Ionian Sea, off Eastern Sicily): Example of architecture of a cabled observatory Authors: Favali, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Azzarone, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Badiali, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Beranzoli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Cianchini, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Qamili, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; De Caro, M.G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; De Santis, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Doumaz, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Embriaco, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Falcone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Giovanetti, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Lo Bue, N.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Marinaro, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Monna, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Montuori, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Sgroi, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Vinci, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; NEMO Collaboration, NEMO Collaboration; INFN - Istituto Nazionale di Fisica Nucleare (INFN), Italy; Chierici, F.; CNR-ISMAR - Consiglio Nazionale delle Ricerche, Istituto delle Scienze Marine; Pignagnoli, L.; CNR-ISMAR - Consiglio Nazionale delle Ricerche, Istituto delle Scienze Marine; Zitellini, N.; CNR-ISMAR - Consiglio Nazionale delle Ricerche, Istituto delle Scienze Marine; Bruni, F.; Tecnomare S.p.A, Italy; Gasparoni, F.; Tecnomare S.p.A, Italy Abstract: NEMO-SN1, located in the central Mediterranean Sea, Western Ionian Sea, off Eastern Sicily Island (Southern Italy) at 2100 m water depth, 25 km from the harbour of the city of Catania, is a prototype of a cabled deep-sea multiparameter observatory and the first operating with real-time data transmission in Europe since 2005. NEMO-SN1 is also the first-established node of EMSO (European Multidisciplinary Seafloor Observatory, http://emso-eu.org), one of the incoming European large-scale research infrastructure included since 2006 in the Roadmap of the ESFRI (European Strategy Forum on Research Infrastructures, http://cordis.europa.eu/esfri/roadmap.htm), which will specifically address long-term monitoring of environmental processes related to Marine Ecosystems, Climate Change and Geo-hazards. NEMO-SN1 has been deployed and developed over the last decade thanks to Italian resources and to the EC project ESONET-NoE (European Seas Observatory NETwork - Network of Excellence, 2007-2011) that funded the LIDO-DM (Listening to the Deep Ocean - Demonstration Mission) and a technological interoperability test (http://www.esonet-emso.org/esonet-noe/). NEMO-SN1 is performing geophysical and environmental long-term monitoring by acquiring seismological, geomagnetic, gravimetric, accelerometric, physico-oceanographic, hydro-acoustic, bioacoustic measurements specifically related to earthquakes and tsunamis generation and ambient noise characterisation in term of marine mammal sounds, environmental and anthropogenic sources. A further main feature of NEMO-SN1 is to be an important test-site for the construction of KM3NeT (Kilometre-Cube Underwater Neutrino Telescope, http://www.km3net.org/), another large-scale research infrastructure included in the ESFRI Roadmap constituted by a large volume neutrino telescope. The description of the observatory and the most recent data acquired will be presented and framed in the general objectives of EMSO. 2011-04-04T22:00:00Z http://hdl.handle.net/2122/8334 Title: NEMO-SN1 Abyssal Cabled Observatory in the Western Ionian Sea Authors: Favali, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Chierici, F.; Istituto di Radio Astronomia-INAF; Marinaro, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Giovanetti, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Azzarone, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Beranzoli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; De Santis, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Embriaco, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Monna, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Lo Bue, N.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Sgroi, T.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Cianchini, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Badiali, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; Qamili, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; De Caro, M. G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Falcone, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Montuori, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Frugoni, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; NEMO Collaboration; INFN - Istituto Nazionale di Fisica Nucleare; Pignagnoli, L.; CNR-ISMAR - Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine, Italy; Zitellini, N.; CNR-ISMAR - Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine, Italy; Federico, B.; Bruni, F.; Tecnomare S.p.A, Italy; Gasparoni, F.; Tecnomare S.p.A, Italy; Pavan, G.; CIBRA, Università di Pavia, Italy Abstract: The “NEutrino Mediterranean Observatory - Submarine Network 1” (NEMO-SN1) seafloor observatory is located in the central Mediterranean Sea, Western Ionian Sea, off Eastern Sicily (Southern Italy) at 2100 m water depth, 25 km from the harbour of the city of Catania. It is a prototype of a cabled deep-sea multiparameter observatory and the first one operating with real-time data transmission in Europe since 2005. NEMO-SN1 is also the first-established node of the “European Multidisciplinary Seafloor and water column Observatory” (EMSO, http://www.emso-eu.org), one of the incoming European large-scale research infrastructures included in the Roadmap of the “European Strategy Forum on Research Infrastructures” (ESFRI, http://cordis.europa.eu/esfri/roadmap.htm) since 2006. EMSO will specifically address long-term monitoring of environmental processes related to Marine Ecosystems, Climate Change and Geo-hazards. NEMO-SN1 has been deployed and developed over the last decade thanks to Italian funding and to the EC project “European Seas Observatory NETwork - Network of Excellence” (ESONET-NoE, 2007-2011) that funded the “Listening to the Deep Ocean - Demonstration Mission” (LIDO-DM) and a technological interoperability test (http://www.esonet-emso.org/). NEMOSN1 is performing geophysical and environmental long-term monitoring by acquiring seismological, geomagnetic, gravimetric, accelerometric, physico-oceanographic, hydroacoustic, bio-acoustic measurements. Scientific objectives include studying seismic signals, tsunami generation and warnings, its hydroacoustic precursors, and ambient noise characterisation in terms of marine mammal sounds, environmental and anthropogenic sources. NEMO-SN1 is also an important test-site for the construction of the “Kilometre-Cube Underwater Neutrino Telescope” (KM3NeT, http://www.km3net.org/), another large-scale research infrastructure included in the ESFRI Roadmap based on a large volume neutrino telescope. The description of the observatory and its most recent implementations is presented. On 9th June, 2012 NEMO-SN1 was successfully deployed and is working in real-time. 2011-12-31T23:00:00Z http://hdl.handle.net/2122/6977 Title: Long-term continuous monitoring of the dissolved CO2 performed by using a new device in groundwater of the Mt. Etna (southern Italy) Authors: De Gregorio, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Camarda, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Longo, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Cappuzzo, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Giudice, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia; Gurrieri, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia Abstract: We present a new device for continuous monitoring of the concentration of CO2 dissolved in water. The device consists of a tube made of a polymeric semi-permeable membrane connected to an infrared gas analyser (IRGA) and a pump. Several laboratory experiments were performed to set the best operating condition and test the accuracy of measurements. We used the device for performing 20 months of continuous monitoring of dissolved CO2 concentration (DCC) in groundwater within a drainage gallery at Mt. Etna. The monitored groundwater intercepts the Pernicana Fault, along which degassing is observed related to volcano-tectonic activity. The acquired data were compared with continuous and discrete data obtained using existing methods. The measurements of DCC resulted in some period of the year well correlated with air temperature. We also found that long-term trends, as well as short-term variations, are probably linked to the dynamics of volcanic activity and/or perturbations in the local or regional stress fields. 2011-03-31T22:00:00Z http://hdl.handle.net/2122/6831 Title: A new real time tsunami detection algorithm for bottom pressure measurements in open ocean: characterization and benchmarks Authors: Pignagnoli, L.; Istituto di Scienze Marine, Consiglio Nazionale delle Ricerca, sezione Bologna, via Gobetti, 101 - 40129 Bologna, Italy; Chierici, F.; Istituto di Radioastronomia, Istituto Nazionale di Astrofisica, sezione Bologna, via Gobetti, 101 - 40129 Bologna, Italy; Embriaco, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Abstract: In the last decades the use of the Bottom Pressure Recorder (BPR) in a deep ocean environment for tsunami de- tection has had a relevant development. A key role for an early warning system based on BPRs is played by the tsunami detection algorithms running in real time on the BPR itself or on land. We present a new algorithm for tsunami detection based on real time pressure data analysis by a filtering cascade. This procedure consists of a tide removing, spike removing, low pass filtering and linear prediction or band pass filtering; the output filtered data is then matched against a given pressure threshold. Once exceeded a parent tsunami signal is detected. The main characteristics of the algorithm is its site specific adaptability and its flexibility that greatly enhance the detection reliability. In particular it was shown that removing the predicted tide strongly reduces the dynamical range of the pressure time series, allowing the detection of small tsunami signal. The algorithm can also be ap- plied to the data acquired by a tide gauge. The algorithm is particularly designed and optimized to be used in an autonomous early warning system. A statistical method for algorithms evaluation has been developed in order to characterize the algorithms features with particular regards to false alarm probability, detection probability and detection earliness. Different configura- tions of the algorithm are tested for comparison using both synthetic and real pressure data set recorded in different environmental conditions and locations. The algorithm was installed onboard of the GEOSTAR abyssal station, deployed at 3264 m depth in the Gulf of Cadiz and successfully operated for 1 year, from August 2007 to August 2008. 2010-05-01T22:00:00Z http://hdl.handle.net/2122/5914 Title: GIS and remote sensing techniques integration aimed forthe evaluation of the Esino catchment impact on coastalwater quality Authors: 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) Editors: Cecchi, Giovanna; Zilioli, Eugenio; Istituto di Ricerca sul Rischio Sismico/CNR (Italy) 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. 1998-09-20T22:00:00Z http://hdl.handle.net/2122/4160 Title: GPS sensitivity analysis applied to non-permanent deformation control networks Authors: Betti, B.; DIIAR Politecnico di Milano; Biagi, L.; Polo di Como Politecnico di Milano; Crespi, M; DITS Università La Sapienza Roma; Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia Abstract: This paper illustrates the surveys and the results obtained in an experiment whose goal is to evaluate the Global Positioning System (GPS) sensitivity and accuracy for deformation control on non-permanent network of di fferent extensions. To this aim a high-precision device was properly built to set up known displacements along three orthogonal axes of a GPS antenna. One of the antennas in the considered GPS networks was moved according to centimeter and sub-centimeter displacements; after careful GPS data pro- cessing, it was evaluated whether these simulated deformations were correctly a posteriori detected and at which probability level. This experiment was carried out both on a local (baselines ranging between 3 and 30 km)and on a regional (baselines ranging between 300 and 600 km) GPS network. The results show that in the local network it is possible to identify the displacements at a level of 10 mm in height and at a level of 5 mm in horizontal position. The analysis of the regional network showed that it is fundamental to investigate new strategies to model the troposphere; in fact, it is necessary to improve the precision of the height in order to correctly identify displacements lower than 60± 80 mm; on the contrary, horizontal displacements can be evidenced at the level of 20 mm. 1998-12-31T23:00:00Z http://hdl.handle.net/2122/3971 Title: GEOSTAR: a GEophysical and Oceanographic STation for Abyssal Research Authors: Beranzoli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; De Santis, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Etiope, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Favali, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Frugoni, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Smriglio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia; Gasparoni, F.; Tecnomare, San Marco 3584, 30124 Venezia, Italy; Marigo, A.; Tecnomare, San Marco 3584, 30124 Venezia, Italy Abstract: The GEOSTAR is a technological and scientific project aimed at the realisation of an autonomous benthic observatory able to perform long-term, continuous and integrated geophysical and environmental measurements in deep seafloors. The observatory is conceived to be a node of existing and future geophysical monitoring networks, making possible their extension offshore. The GEOSTAR observatory prototype hosts sensors for seismic, geomagnetic, gravimetric, geochemical and oceanographic researches up to abyssal depths (4000 m). The first 1-year scientific mission is foreseen within the end of the millennium in the abyssal plain (3400 m) of the Southern Tyrrhenian Sea, where key information about the geodynamics and oceanography of the whole Mediterranean basin can be acquired. 1998-06-29T22:00:00Z http://hdl.handle.net/2122/2707 Title: Microanalytical facilities at HPHT Laboratory at INGV Authors: Cavallo, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia; HPHT Group, ; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia Editors: Vinciguerra, S. Abstract: see Abstract Volume 2007-09-24T22:00:00Z http://hdl.handle.net/2122/1651 Title: Soil volumetric water content measurements using TDR technique Authors: Menziani, M.; Osservatorio Geofisico dell'Università di Modena, Italy; Rivasi, M. R.; Osservatorio Geofisico dell'Università di Modena, Italy; Pugnaghi, S.; Osservatorio Geofisico dell'Università di Modena, Italy; Santangelo, R.; Osservatorio Geofisico dell'Università di Modena, Italy; Vincenzi, S.; Istituto per lo Studio della Dinamica delle Grandi Masse del C.N.R., Venezia, Italy Abstract: A physical model to measure some hydrological and thermal parameters in soils will to be set up. The vertical profiles of: volumetric water content, matric potential and temperature will be monitored in different soils. The volumetric soil water content is measured by means of the Time Domain Reflectometry (TDR) technique. The result of a test to determine experimentally the reproducibility of the volumetric water content measurements is reported together with the methodology and the results of the analysis of the TDR wave forms. The analysis is based on the calculation of the travel time of the TDR signal in the wave guide embedded in the soil. 1995-12-31T23:00:00Z http://hdl.handle.net/2122/1123 Title: Geoelectrical investigation for the assessment of groundwater conditions: a case study Authors: Lashkaripour, G. R.; Department of Geology, University of Sistan and Baluchestan, Zahedan, Iran; Nakhaei, M.; Department of Geology, University of Tarbiat Moallem, Tehran, Iran Abstract: An electrical resistivity survey involving Vertical Electrical Soundings (VES) was carried out in the Shooro Basin in Southeast Iran in order to study groundwater conditions such as depth, thickness and aquifer boundaries. Vertical electrical soundings by Schlumberger array were conducted in this area. The resistivity Schlumberger soundings which have a maximum current electrode spacing (AB) ranging from 200 m to 600 m were carried out at 207 positions in 19 profiles. Interpretation of these soundings indicates the presence of an alluvial aquifer. This aquifer is divided into eastern and western parts by the Shooro River, which comprises a variable thickness and resistivity of deposits. The average permeability coefficient and resistivity in the western part, especially southwest is higher than the eastern part of the aquifer. Therefore, it seems that Shooro River follows a fault zone in the region. The high resistivity of west part is due to the water quality and the existence of alluvial fan with coarse grain materials. Low aquifer resistivities in the east are associated with finer materials and also brackish water infiltration from the adjacent basin mainly in the central part of the aquifer. Furthermore, zones with high yield potential have been determined in this research based on the resistivity data. 2005-11-30T23:00:00Z