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  • 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy  (4)
  • 04. Solid Earth::04.04. Geology::04.04.04. Marine geology  (2)
  • OGS  (4)
  • Molecular Diversity Preservation International  (2)
  • International Union of Crystallography (IUCr)
Collection
Keywords
Publisher
Years
  • 1
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    15 years of SAR Interferometry (2007)
    OGS
    Details
    Publication Date: 2020-12-01
    Description: Since the end of ‘80s a technique based on the use of Synthetic Aperture Radar (SAR) data from Earth-orbiting instruments has been developed. The approach, known as SAR Interferometry (InSAR) is able to provide accurate measurements of the Earth’s surface deformations due to geological and geophysical phenomena, as earthquakes, landslides, volcanic eruptions. In the timeframe of less than two decades InSAR technique spread throughout a wide range of Earth science fields. During these years a huge number of applications has been performed and a vast amount of theoretical and applicative manuscript are available in literature today. Recent improvements of InSAR lead to the development of a new approach, referred to as Advanced InSAR (A-InSAR) techniques, addressed to the monitoring of slow movements along time. This work does not attempt to be a comprehensive review of the theory and application of InSAR and A-InSAR, but it would provide a basic overview of these techniques.
    Description: Published
    Description: 151-162
    Description: 5IT. Osservazioni satellitari
    Description: N/A or not JCR
    Description: open
    Keywords: InSAR ; 04. Solid Earth::04.03. Geodesy::04.03.99. General or miscellaneous ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Ground deformation at Mt. Etna: a joint interpretation of GPS and InSAR data from 1993 to 2000 (2007)
    OGS
    Details
    Publication Date: 2017-04-04
    Description: Combined GPS measurements and radar interferometry (InSAR) have been applied at Mt. Etna to study the ground deformation affecting the volcano both over the long- (1993-2000) and short-term (1997-1998 and 1998-2000). The aim was to better understand the dynamics of the volcano during the magma-recharging phase following the 1991-93 eruption. Since 1993, InSAR and GPS data indicate that Mt. Etna has undergone an inflation. A deep intrusion was detected by InSAR, on the western flank of the volcano, between March and May 1997. In the following months, this intrusion rose up leading to a seismic swarm occurring in January 1998 in the western sector. This now shallow intrusion is confirmed by GPS data. From 1998 to 2000, a general deflation affecting the upper part of the volcano was detected. Over the whole study period, a continuous eastward to south-eastward motion of the eastern sector of the volcano was also evidenced. The analytical inversions of GPS data inferred a plane dipping about 12°ESE, located beneath the eastern flank of the volcano at a depth of 1.4 km b.s.l.. The movement along this plane is able to reproduce the observed south-eastward motion of a sector bounded northward by the Pernicana fault, westward by the North-East Rift and the South Rift, and southward by the Mascalucia-Tremestieri-Trecastagni fault system. InSAR data have validated this model.
    Description: M. Palano was supported by University of Catania PhD grants.
    Description: Published
    Description: 81-98
    Description: 1.10. TTC - Telerilevamento
    Description: N/A or not JCR
    Description: reserved
    Keywords: Etna ; GPS ; InSAR ; ground deformations ; modelling ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    Ground deformation at Mt. Etna: a joint interpretation of GPS and InSAR data from 1993 to 2000 (2007)
    OGS
    Details
    Publication Date: 2017-04-04
    Description: Combined Global Positioning System (GPS) measurements and Interferometry SAR (InSAR) have been applied on Mt. Etna to study the ground deformation affecting the volcano both over the long (1993-2000) and short-term (1997-2000). From 1993 to 1997, data indicate a re-pressurization of Mt. Etna’s plumbing system that i) triggered most of the seismicity, ii) induced the dilatation of the volcano, and iii) produced a series of summit eruptions since 1995. InSAR detected a deep intrusion on the western flank of the volcano, between March and May 1997. In the following months, this intrusion rose leading to a seismic swarm in the western sector occurring in January 1998. The shallow intrusion is confirmed by GPS data. From 1998 to 2000, a general deflation affected the upper part of the volcano. Elastic deformation modelling of GPS data suggests that the active sources of deformation include deep pressure sources located beneath the upper western flank of the volcano, shallow dislocation sources (dikes and faults) located beneath the NE and S rift zones, and a sub-horizontal dislocation plane (dipping about 12° ESE), located beneath the eastern flank of the volcano at a depth of 1.5 km b.s.l.. InSAR data validated these models.
    Description: Published
    Description: open
    Keywords: Ground deformation ; Mt. Etna: ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    VHR seismic imaging of displacement along an active off-shore fault system of the Adriatic foreland (2007)
    OGS
    Details
    Publication Date: 2017-04-04
    Description: A dense network of Very High Resolution seismic profiles along the Gondola Fault Zone (GFZ), in the Adriatic foreland (Italy), reveals the geometry and Middle Pleistocene-Holocene activity of this inherited, E-W, strike-slip fault system. The GFZ is 〉50 km long and includes two parallel fault sets, characterized by subvertical planes displaying a vertical component of motion, associated with two main anticlines. The northern fault set is organized in three branches, whereas the southern one includes two branches. The overall geometry of the GFZ suggests dextral slip. The distribution of the vertical displacement is bell-shaped, suggesting a long-term behavior as a single structure. However, individual branches show different deformation histories, implying that they can slip independently. The vertical slip rates, calculated for late Middle Pleistocene to Holocene intervals, are consistently small within a limited range (0-0.19 mm/a).
    Description: Published
    Description: CNR, P.le Aldo Moro 5, Roma, Italia
    Description: 3.2. Tettonica attiva
    Description: open
    Keywords: VHR seismics ; Fault displacement ; Active fault ; Adriatic Sea ; 04. Solid Earth::04.02. Exploration geophysics::04.02.06. Seismic methods ; 04. Solid Earth::04.04. Geology::04.04.04. Marine geology ; 04. Solid Earth::04.04. Geology::04.04.09. Structural geology ; 04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy ; 04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: Oral presentation
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  • 5
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    The Marsili Volcanic Seamount (Southern Tyrrhenian Sea): A Potential Offshore Geothermal Resource (2015)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2017-04-04
    Description: Italy has a strong geothermal potential for power generation, although, at present, the only two geothermal fields being exploited are Larderello-Travale/Radicondoli and Mt. Amiata in the Tyrrhenian pre-Apennine volcanic district of Southern Tuscany. A new target for geothermal exploration and exploitation in Italy is represented by the Southern Tyrrhenian submarine volcanic district, a geologically young basin (Upper Pliocene-Pleistocene) characterised by tectonic extension where many seamounts have developed. Heat-flow data from that area show significant anomalies comparable to those of onshore geothermal fields. Fractured basaltic rocks facilitate seawater infiltration and circulation of hot water chemically altered by rock/water interactions, as shown by the widespread presence of hydrothermal deposits. The persistence of active hydrothermal activity is consistently shown by many different sources of evidence, including: heat-flow data, gravity and magnetic anomalies, widespread presence of hydrothermal-derived gases (CO2, CO, CH4), 3He/4He isotopic ratios, as well as broadband OBS/H seismological information, which demonstrates persistence of volcano-tectonic events and High Frequency Tremor (HFT). The Marsili and Tyrrhenian seamounts are thus an important—and likely long-lasting-renewable energy resource. This raises the possibility of future development of the world’s first offshore geothermal power plant.
    Description: Published
    Description: 4068-4086
    Description: 3A. Ambiente Marino
    Description: JCR Journal
    Description: open
    Keywords: Marsili seamount ; hydrothermal circulation ; geothermal resource ; 04. Solid Earth::04.04. Geology::04.04.04. Marine geology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
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    InSAR Time Series Analysis of Natural and Anthropogenic Coastal Plain Subsidence: The Case of Sibari (Southern Italy) (2015)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2017-04-04
    Description: We applied the Small Baseline Subset multi-temporal InSAR technique (SBAS) to two SAR datasets acquired from 2003 up to 2013 by Envisat (ESA, European Space Agency) and COSMO-SkyMed (ASI, Italian Space Agency) satellites to investigate spatial and temporal patterns of land subsidence in the Sibari Plain (Southern Italy). Subsidence processes (up to ~20 mm/yr) were investigated comparing geological, hydrogeological, and land use information with interferometric results. We suppose a correlation between subsidence and thickness of the Plio-Quaternary succession suggesting an active role of the isostatic compensation. Furthermore, the active back thrusting in the Corigliano Gulf could trigger a flexural subsidence mechanism even if fault activity and earthquakes do not seem play a role in the present subsidence. In this context, the compaction of Holocene deposits contributes to ground deformation. Despite the rapid urbanization of the area in the last 50 years, we do not consider the intensive groundwater pumping and related water table drop as the main triggering cause of subsidence phenomena, in disagreement with some previous publications. Our interpretation for the deformation fields related to natural and anthropogenic factors would be a comprehensive and exhaustive justification to the complexity of subsidence processes in the Sibari Plain.
    Description: PON (Operational National Plan) 2007–2013 from MIUR (Italian Research Ministry of Research) Project AMICUS (Study for the environmental protection and the mitigation of Anthropogenic Pollution In the Coastal Environment of selected areas of Calabria; ID: PON01_ 02818) - COSMO-SkyMed® PRODUCTS, © ASI (Italian Space Agency)—provided under license of ASI in the framework of the S3 Project “Short term earthquake prediction and preparation” (DPC-INGV, 2013). The Envisat images are provided by ESA (European Space Agency) under the CAT.1P 5605
    Description: Published
    Description: 16004–16023
    Description: 6A. Monitoraggio ambientale, sicurezza e territorio
    Description: 1IT. Reti di monitoraggio e Osservazioni
    Description: JCR Journal
    Description: restricted
    Keywords: SBAS-InSAR ; Sibari Plain ; subsidence ; geology ; anthropic processes ; 04. Solid Earth::04.03. Geodesy::04.03.07. Satellite geodesy
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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