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  • 11
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    Condizioni idrografiche e dinamiche nell’Area Marina Protetta di Portofino durante il periodo estivo. (2008)
    Details
    Publication Date: 2017-04-04
    Description: Dati idrologici e correntometrici sono stati rilevati durante il periodo estivo nel 2004, 2007 e 2008 nel tratto di mare dell’AMP di Portofino. Le misure idrologiche, che hanno interessato l’intera area, hanno permesso di evidenziare una certa disomogeneità: le masse d’acqua del Golfo Paradiso sono maggiormente influenzate dagli effetti locali (topografici e/o legati agli apporti costieri), il tratto di mare che va da Punta Faro a Punta Chiappa appare più correlato alle masse d’acqua del Mar Ligure. Le misure dirette di corrente (un sistema SEPTR collocato davanti a Porto Pidocchio negli anni 2004 e 2007), indicano una sostanziale omogeneità della struttura verticale. La direzione prevalente della corrente verso SW, suggerisce che essa è parte di una circolazione locale limitata al Golfo Paradiso, dovuta ad una interazione da parte del promontorio con la corrente costiera ligure, che generalmente scorre verso ovest parallelamente alle isobate, come già evidenziato da altri autori (Doglioli et al 2004). Lo studio della struttura verticale della corrente, attraverso l’analisi delle componenti principali, indica che la prima componente spiega circa il 60% della varianza, suggerendo una elevata omogeneità verticale e quindi una certa rilevanza della componente barotropica. La seconda componente spiega circa il 25% della varianza e sembra soprattutto associata agli effetti Ekman sia superficiali che di fondo. Significativo è l’effetto del vento sulla corrente: sono stati considerati dati relativi a tre stazioni a terra (Genova, La Spezia, Livorno) ed i campi di vento sull’intero bacino ligure dedotti dal satellite Quickscat allo scopo di stimare sia l’effetto legato al vento locale che quello del vento a grande scala.
    Description: Published
    Description: Lecce (Italia)
    Description: 3.7. Dinamica del clima e dell'oceano
    Description: open
    Keywords: idrografia ; correnti ; 03. Hydrosphere::03.02. Hydrology::03.02.02. Hydrological processes: interaction, transport, dynamics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
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  • 12
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    Integrated MVG and ERT Survey Over a Shallow Cave (2009)
    Details
    Publication Date: 2017-04-04
    Description: An integrated geophysical MVG (Microgravity Vertical Gradient) and ERT (Electrical Resistivity Tomography) survey was performed over a shallow cave in the Armetta Mountain karst area, close to the Liguria-Piedmont wa- tershed (Tanaro valley). The aim of this study is to test the response of a known shallow karst cave. The cave was developed in the Mesozoic sedimen- tary cover (dolostones and limestones - CAU : Caprauna Armetta Unit); the shallowest portion of the cave exhibits narrow passages and, at about 30 m below the entrance, a fossil meander which links two large chambers, that represent the target of the geophysical survey.....
    Description: Unpublished
    Description: Metro Toronto Convention Centre,Toronto, Ontario, Canada
    Description: 3.8. Geofisica per l'ambiente
    Description: open
    Keywords: Karst Studied, Electrical Resistivity Tomography ; Microgravity Vertical Gradient, Void detection ; 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
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  • 13
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    Geomagnetic depth sounding in the Northern Apennines (Italy) (2008)
    TERRAPUB
    Details
    Publication Date: 2017-04-04
    Description: A Geomagnetic Depth Sounding (GDS) survey covering the Northern Apennines of Italy has been carried out in the period 1992–94. Induction arrows maps and hypothetical event Fourier maps were constructed to obtain an electromagnetic imaging of this area. Since the two dimensional (2-D) character comes out from those maps for periods greater than 32 minutes, a 2-D inverse modeling was carried out. The model responses show that a deep conductive layer (〉5000 S) underlies the Apennine chain at about 20 km depth. The transition between the Adriatic and the Tyrrhenian domains is marked by a rather sharp vertical offset in this conducting layer. In the northwest sector of the studied area an anomalous high conductivity behavior is superimposed on the regional trend, which corresponds to the geothermal field of Larderello-Travale.
    Description: Published
    Description: 385-396
    Description: 3.4. Geomagnetismo
    Description: JCR Journal
    Description: reserved
    Keywords: Geomagnetic Depth Sounding ; Geoelectric Structure ; Northern Apennines ; 04. Solid Earth::04.05. Geomagnetism::04.05.99. General or miscellaneous ; 04. Solid Earth::04.05. Geomagnetism::04.05.08. Instruments and techniques
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 14
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    A high-resolution aeromagnetic survey over the Cape Roberts Rift Basin: Correlations with seismic reflection and magnetic susceptibility log data (2008)
    USGS
    Details
    Publication Date: 2017-04-04
    Description: A high-resolution aeromagnetic survey (altitude 125 m asl, spacing 500 m , area 800 km2) was carried out in 1994 offshore of Cape Roberts by the GITARA (German ITalian Aeromagnetic Research in Antarctica) Group. The availability from drilling of whole-core physical properties logs for magnetic susceptibility, P-wave velocity and density/porosity data allows new insights to be inferred from reprocessed and reviewed HRAM aeromagnetic data. Aeromagnetic data have been reprocessed to image with greater detail the structural framework along the western flank of the Victoria Land Basin. New processing includes 2D Werner and 3D Euler deconvolution, the production of maps of the maximum horizontal gradient of pseudo-gravity, and 2D, 3D modelling. Magnetic trends and anomalies are discussed in conjunction with now available drilling results from the CRP, existing bathymetric data and recently published interpretations of a multichannel seismic reflection survey.
    Description: Published
    Description: Santa Barbara, CA, USA
    Description: 3.4. Geomagnetismo
    Description: open
    Keywords: HRAM ; 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Extended abstract
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  • 15
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    Modal decomposition of magnetic maps : the case of Cape Roberts aeromagnetic survey, Antarctica.Modal decomposition of magnetic maps : the case of Cape Roberts aeromagnetic survey, Antarctica. (2008)
    Details
    Publication Date: 2017-04-04
    Description: This paper proposes a digital enhancement tool for magnetic anomaly maps. The magnetic anomaly map is decomposed by means of Singular Value Decomposition into a number of orthogonal basis. The dataset is then filtered, after eigenvalues evaluation, accordingly to a specific variance pattern. The filtering product is efficient in enhancing subtle and hidden features. The proposed filtering procedure is first tested with a synthetic signal, then it has been applied to the Cape Roberts (Antarctica) aeromagnetic survey, flown over an off-shore rift basin. The proposed method appears to be efficient as noise removal and act as a digital enhancement tools able to provide TMI anomaly maps which can reveal hidden lineaments, otherwise not visible. The results have been checked against independent data.
    Description: Submitted
    Description: 3.8. Geofisica per l'ambiente
    Description: JCR Journal
    Description: open
    Keywords: SVD ; MAGNETIC ANOMALIES ; Antarctic Magnetic Surveys ; HRAM ; 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: manuscript
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  • 16
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    Modal Decomposition of Magnetic Maps (2008)
    Details
    Publication Date: 2017-04-04
    Description: poster without abstract
    Description: Unpublished
    Description: DIPTERIS, Univ. Genova (Italy)
    Description: 1.8. Osservazioni di geofisica ambientale
    Description: open
    Keywords: Magnetic Anomalies ; SVD ; 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Conference paper
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  • 17
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    The Marine Technology Liguria District, an opportunity for Collaboration and Training (2009)
    Details
    Publication Date: 2017-04-04
    Description: This work focus on the newly born DLTM, namely the Distretto Ligure delle Tecnologie Marine, based in La Spezia, Liguria Region (IT). The main involved partners are: Ministries, Regione Liguria Council, Spedia SpA Company, Industries, SMEs (SMBs), Universities and National Research Institutes. The DLTM has been created as an answer to the local versus global needs of marine products innovation, technology and science. In order to provide, both the local and international community, effective solutions the DLTM aims to: - promote Innovation and pre-competitiveness of activities related to industrial research; - enhance the value and visibility of excellence areas existing in the Ligurian region (in the big enterprises as well as in SMEs) concerning marine technology; - enhance the value of academic activities focusing their R&D on industrial products/processes, assuring, evaluating and preventing environmental sustainability also in case of extreme events; - harmonize/make sustainable the economy and the society promoting scientific innovation and technological development, by means of Universities, Public and Private Research Institutes (at regional, national and EU level); - help the exchange of ideas and realization of projects aimed at developing the District objectives; - increase the dissemination and valorisation of District results and achievements, build capacity in the sectors of interest to the District. The DLTM is characterized by two main macro-themes ......
    Description: Unpublished
    Description: Fort Lauderdale - Florida - (USA)
    Description: 5.8. TTC - Formazione e informazione
    Description: open
    Keywords: marine district ; education ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Poster session
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  • 18
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    MAG: Magnetic Archaeo Geophysics (2009)
    CASC - Museu d'Arqueologia de Catalunya
    Details
    Publication Date: 2017-04-04
    Description: This note provides a synthetic overview of magnetic survey as applied to archaeology. The note gives a detailed section where the newest elaboration and interpretation techniques are shown. A brief introduction to the geomagnetic field and its time-dependent variations is also presented. A selection of further readings can be found in appendix.
    Description: Published
    Description: 133-142
    Description: 1.8. Osservazioni di geofisica ambientale
    Description: open
    Keywords: Magnetic Archaeo Geophysics ; 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 19
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    Some magnetic evidences of the Ist century BC Salapia harbor near the Margherita di Savoia shoreline, SE Italy (2008)
    Details
    Publication Date: 2017-04-04
    Description: This paper highlights some magnetic evidences revealed by a recent marine magnetic survey ran near the Margherita di Savoia shoreline, Puglia (Italy). The survey has been planned to probe one of the expected settlement site not perused yet. The accurate elaboration of high density total magnetic field intensity data shows some features which can be interpreted as markers of harbor framework, at present time partially uprooted. A model of the bodies which cause the magnetic anomaly is also provided.
    Description: Submitted
    Description: 1.8. Osservazioni di geofisica ambientale
    Description: JCR Journal
    Description: open
    Keywords: Marine magnetic surveys ; marine archeology ; 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: manuscript
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  • 20
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    Determining geophysical properties of a nearsurface cave through integrated microgravity vertical gradient and electrical resistivity tomography measurements (2011)
    National Speleological Society
    Details
    Publication Date: 2017-04-04
    Description: Vertical-gradient microgravity and electrical-resistivity tomography geophysical surveys were performed over a shallow cave in the Italian Armetta Mountain karst area, close to the Liguria-Piedmont watershed. The aim of this study was to test the geophysical response of a known shallow cave. The shallowest portion of the cave exhibits narrow passages and, at about 30 meters below the entrance, a fossil meander linking two large chambers, the target of the geophysical survey. The integrated results of the two surveys show a clear geophysical response to the cave. The surveys exhibited high resistivity values and a negative gravity anomaly over the large cave passages. This work confirms the ability of these geophysical techniques to give the precise location of the voids, even in complex environments. The application of these techniques can be successful for site surveying where the presence of hollows may be expected.
    Description: Published
    Description: 11-15
    Description: 2.6. TTC - Laboratorio di gravimetria, magnetismo ed elettromagnetismo in aree attive
    Description: JCR Journal
    Description: restricted
    Keywords: Gravity gradient ; electrical tomography ; karst aquifer ; 03. Hydrosphere::03.02. Hydrology::03.02.03. Groundwater processes ; 04. Solid Earth::04.03. Geodesy::04.03.04. Gravity anomalies ; 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring ; 05. General::05.08. Risk::05.08.02. Hydrogeological risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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