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  • 11
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    Unbekannt
    SO2 and ash plume retrievals using MSG-SEVIRI measurements. Test case: 24 November 2006 Mt. Etna eruption. (2008)
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: In this work the Thermal InfraRed (TIR) measurements of the Spin Enhanced Visible and Infrared Imager (SEVIRI) on board the Meteosat Second Generation (MSG) geosyncronous satellite, have been used to estimate the daily evolution of the SO2 columnar abundance and ash plume optical thickness, particle effective radius and total mass of Mt. Etna volcanic plume. As test case the 24 November 2006 eruption has been considered. SEVIRI is an optical imaging radiometer characterized by 12 spectral channels, a high temporal resolution (one image every 15 minutes) and a 9 km2 footprint. The instrument’s spectral range includes the 8.7 mm band (channel 7) and the10.8 and 12.0 mm split window bands (channels 9 and 10) used respectively for SO2 retrieval and volcanic ash detection and retrievals. The SO2 columnar abundance is estimated by means of a Look-Up Table (LUT) least squares fit procedure applied to channel 7 while the ash detection and retrievals are carried out by using the Brightness Temperature Difference algorithm applied to channels 9 and 10. All the simulations needed for the retrievals have been realized using the WMO Trapani meteo station atmospheric profiles and MODTRAN 4 radiative transfer model. The SEVIRI volcanic plume SO2 and ash retrieval has been compared with the results obtained by processing the data collected during the same eruption by the MODIS sensor on board of Aqua and Terra satellites. Results show the ability of SEVIRI to recognize and estimate the daily trend of SO2 and ash in an eruptive plume; for the 24 November 2006 eruption, the SO2 and ash emissions start at about 4 am and 9 am respectively and terminate simultaneously at about 3 pm. The comparison between SEVIRI and MODIS retrievals indicates a good agreement.
    Beschreibung: Published
    Beschreibung: Naples
    Beschreibung: 1.10. TTC - Telerilevamento
    Beschreibung: open
    Schlagwort(e): SO2 retrieval ; ash retrieval ; MSG-SEVIRI ; MODIS ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: Conference paper
    Standort Signatur Erwartet Verfügbarkeit
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    ARTIKEL (OA)
  • 12
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    Volcanic Risk System (SRV): ASI Pilot Project to Support The Monitoring of Volcanic Risk In Italy by Means of EO Data (2008)
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: The ASI-SRV(Sistema Rischio Vulcanico) project started at the beginning of the 2007 is funded by the Italian Space Agency (ASI) in the frame of the National Space Plan 2003-2005 under the Earth Observations section for natural risks management. Coordinated by the Istituto Nazionale di Geofisica e Vulcanologia (INGV), which is responsible at national level for the volcanic monitoring, the project has as main objective to develop a pre-operative system based on EO data and ground measurements integration to support the volcanic risk monitoring of the Italian Civil Protection Department. The project philosophy is to implement specific modules which allow to process, store and visualize through Web GIS tools EO derived parameters considering three activity phases: 1) knowledge and prevention; 2) crisis; 3) post crisis. In order to combine effectively the EO data and the ground networks measurements the system will implement a multi-parametric analysis tool, which represents and unique tool to analyze contemporaneously a large data set of data in “near real time”. The SRV project will be tested his operational capabilities on three Italian Volcanoes: Etna,Vesuvio and Campi Flegrei.
    Beschreibung: I.N.G.V. - O.V. SEZIONE DI NAPOLI I.R.E.A. - C.N.R. E.S.A. A.S.I.
    Beschreibung: Published
    Beschreibung: Napoli
    Beschreibung: 1.10. TTC - Telerilevamento
    Beschreibung: open
    Schlagwort(e): component ; Remote Sensing ; Volcanic Risck ; 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous ; 04. Solid Earth::04.02. Exploration geophysics::04.02.05. Downhole, radioactivity, remote sensing, and other methods
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: Conference paper
    Standort Signatur Erwartet Verfügbarkeit
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  • 13
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    Una nuova procedura per le correzioni atmosferiche: applicazione sulla Solfatara di Pozzuoli. (2007)
    Details
    Publikationsdatum: 2020-02-24
    Beschreibung: This paper describes CIRILLO, a new software for the correction of spaceborne images acquired in the VIS-SWIR spectral range. Moreover the capability to retrieve minerals composing the Solfatara di Pozzuoli surface using ASTER multispectral data is shown. In order to identify the mineralogical composition of the collected sample, mineralogy analysis (X-ray fluorescence and X-ray diffratometry) have been done. The reflectance spectra of the collected sample, obtained using a FieldSpec Pro spectrometer (INAF-LASF) has been compared with measurements performed directly on the Solftara di Pozzuoli using a portable ASD-Fieldspec spectrometer.
    Beschreibung: Published
    Beschreibung: 77-86
    Beschreibung: 1.10. TTC - Telerilevamento
    Beschreibung: N/A or not JCR
    Beschreibung: reserved
    Schlagwort(e): correzioni atmosferiche ; iperspettrale ; 01. Atmosphere::01.01. Atmosphere::01.01.05. Radiation
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 14
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    Combined Use of Terrestrial Laser Scanning and IR Thermography Applied to a Historical Building (2015)
    MDPI
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: Abstract: The conservation of architectural heritage usually requires a multidisciplinary approach involving a variety of specialist expertise and techniques. Nevertheless, destructive techniques should be avoided, wherever possible, in order to preserve the integrity of the historical buildings, therefore the development of non-destructive and non-contact techniques is extremely important. In this framework, a methodology for combining the terrestrial laser scanning and the infrared thermal images is proposed, in order to obtain a reconnaissance of the conservation state of a historical building. The proposed case study is represented by St. Augustine Monumental Compound, located in the historical centre of the town of Cosenza (Calabria, South Italy). Adopting the proposed methodology, the paper illustrates the main results obtained for the building test overlaying and comparing the collected data with both techniques, in order to outline the capabilities both to detect the anomalies and to improve the knowledge on health state of the masonry building. The 3D model, also, allows to provide a reference model, laying the groundwork for implementation of a monitoring multisensor system based on the use of non-destructive techniques.
    Beschreibung: The presented work has been carried out in the PON Monitoraggio in Area Sismica di SIstemi MOnumentali (MASSIMO) project framework, managed by the Italian National Institute of Geophysics and Volcanology (INGV) and funded by the Italian Ministry of Education, University and Research
    Beschreibung: Published
    Beschreibung: 194-213
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: JCR Journal
    Beschreibung: open
    Schlagwort(e): terrestrial laser scanner ; IR thermography ; historical buildings conservation ; preventive diagnosis ; 05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 15
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    Tecniche di indagine NDT per l'analisi dello stato di conservazione di edifici a valenza storico-artistica (2015)
    AIPND - Associazione Italiana delle Prove Non Distruttive
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: La mitigazione della vulnerabilità di edifici storici è una tematica molto rilevante sia per la loro protezione dai rischi ambientali sia per l'elevata pericolosità sismica dell’intero territorio nazionale. In questo studio viene presentata una metodologia di indagine NDT (dall’inglese Non Destructive Testing), basata sull'integrazione di tecniche di misura classiche e strumenti di telerilevamento prossimale (laser scanner terreste e camera termica), per la ricostruzione tridimensionale delle strutture e la valutazione preliminare del loro stato di conservazione. I risultati illustrati nel lavoro sono relativi alla chiesa di San Nicola a Briatico, un edificio costruito in cemento armato nei primi decenni del Novecento. Essi dimostrano l’efficacia delle indagini a scansioni laser per la realizzazione di un modello 3D ad alta risoluzione della struttura in esame, nonché per la ricostruzione di dettaglio di alcuni elementi e la restituzione sia dei quadri fessurativi che dei danneggiamenti locali di alcuni elementi strutturali. Inoltre, i risultati sperimentali dimostrano i benefici derivanti dalle indagini termografiche, le quali hanno permesso di rilevare anomalie termiche legate a superfici di discontinuità negli strati degli intonaci e del calcestruzzo di copriferro, dovuti sia a fenomeni di carbonatazione che a presenza di cloruri.
    Beschreibung: Il presente lavoro è stato sviluppato nell'ambito dell'infrastruttura sviluppata all'interno del progetto PON01-02710 "MASSIMO" - "Monitoraggio in Area Sismica di SIstemi MOnumentali", coordinato dall'Istituto Nazionale di Geofisica e Vulcanologia e finanziato dal Ministero dell'Università, dell'Istruzione e della Ricerca.
    Beschreibung: Published
    Beschreibung: 35-43
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: N/A or not JCR
    Beschreibung: restricted
    Schlagwort(e): Prove NDT ; laser scanner terrestre ; termografia ad infrarossi ; stato di conservazione di edifici ; 05. General::05.04. Instrumentation and techniques of general interest::05.04.99. General or miscellaneous
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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  • 16
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    Volcanic Risk Management: the Case of Mt. Etna 2006 Eruption (2011)
    JBIGIS-UNOOSA
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: Mt. Etna volcano is located in a very populated area of eastern Sicily (Italy). Its permanent degassing activity from summit craters and frequent eruptions impact significantly on town habitations and cultivated areas. In the latest years Etna has produced copious ash emission causing great losses to local economy and causing serious hazards to national and international air traffic over Mediterranean area and the often closure of Catania airport. In July 2006 eruptive vents opened on the East and South flanks of the summit craters showing irregular explosive and effusive activity lasting 6 months. This eruption represented the opportunity to perform the pre-operative test of FP6 Eurorisk-Preview (Prevention, Information and Early Warning) project aimed to develop tools for monitoring volcanoes. The test was performed during two temporal phases: the first one of early-warning was aimed to measure ground deformation and the second one during the crisis to survey volcanic ash produced during the explosions. The ground deformations were measured through the elaboration of SAR data. Beside the geophysical objectives, the test was also important to check data availability and efficiency of European Space Agency procedures. The pre-operative test has been peculiar to understand and quantify the delivering time of the final satellite products expected from the Volcanological Observatory in operative case. The analysis of July 2005 - July 2006 SAR data showed a pre-eruptive inflation trend in agreement with the ground network of GPS data. The magmatic source, that produced the September - October activity, has been located about 2.7 km below the summit craters. During the crisis phase characterized by paroxysmal activity, the Italian Civil Protection (DPC) in charge of airport closure in case of volcanic hazard, requested the satellite volcanic ash product retrieved from the NASA-MODIS data. An agreement between the industry Telespazio as direct broadcast of satellite data at Matera station and INGV was signed in order to elaborate the data in near-real time. The volcanic ash product provided information about: the presence of volcanic ash in the air; the affected area; the volcanic plume dispersal direction, dimensions and altitude and the volcanic ash loading. The satellite products and the observations report have been successively inserted in a web-interface. At the same time the observations report has been linked to the DPC dedicated Web-GIS interface that allows in a short time the availability of volcanic ash information to DPC in support to their decisions.
    Beschreibung: Published
    Beschreibung: 77-81
    Beschreibung: 1.10. TTC - Telerilevamento
    Beschreibung: open
    Schlagwort(e): Earth observation data ; Volcanic hazard ; Web-GIS ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: book chapter
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
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    Error analysis of subpixel lava temperature measurements using infrared remotely sensed data (2014)
    Wiley-Blackwell
    Details
    Publikationsdatum: 2017-04-04
    Beschreibung: When remote sensing users are asked to define their requirements for a new sensor, the big question that always arises is: will the technical specifications meet the scientific requirements? Herein, we discuss quantitative relationships between instrumental spectral and radiometric characteristics and data exploitable for lava flow subpixel temperature analysis. This study was funded within the framework of ESA activities for the IR GMES (Global Monitoring for Environment and Security) element mission requirements in 2005. Subpixel temperature retrieval from satellite infrared data is a well-established method that is well documented in the remote sensing literature. However there is little attention paid to the error analysis on estimated parameters due to atmospheric correction and radiometric accuracy of the sensor. In this study, we suggest the best spectral bands combination to estimate subpixel temperature parameters. We also demonstrate that poor atmospheric corrections may vanish the effectiveness of the most radiometrically accurate instrument.
    Beschreibung: Published
    Beschreibung: 112-125
    Beschreibung: 3V. Dinamiche e scenari eruttivi
    Beschreibung: JCR Journal
    Beschreibung: restricted
    Schlagwort(e): Remote sensing, error analysis, IR sensors, sub-pixel temperature, Numerical solutions; Non-linear differential equations; Effusive volcanism; Eruption mechanisms and flow emplacement; Remote sensing of volcanoes; Volcano monitoring ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 18
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    Una metodologia di indagine basata su tecniche NDT per la mitigazione del rischio sismico di beni storici soggetti a tutela (2015)
    AIPND - Associazione Italiana delle Prove Non Distruttive
    Details
    Publikationsdatum: 2021-09-03
    Beschreibung: Sommario In questo lavoro viene presentata una metodologia di indagine NDT (acronimo inglese di Non Destructing Testing), basata su tecniche classiche di misura, telerilevamento prossimale e satellitare ad alta risoluzione spaziale, analisi sismogenetiche ed indagini geofisiche, per la mitigazione del rischio sismico di edifici storici monumentali soggetti a tutela. I risultati sperimentali, ottenuti per il caso di studio del complesso monumentale di Sant’Agostino ubicato nella città di Cosenza, dimostrano l’efficacia dell’approccio proposto sia per applicazioni correnti (il monitoraggio materiale e strutturale di un manufatto), sia per applicazioni emergenti (mitigazione del rischio sismico di beni storici).
    Beschreibung: Il presente lavoro è finanziato dal Ministero dell'Università, dell'Istruzione e della Ricerca (MIUR) nell'ambito del programma PON R&C 2007-2013 che finanzia al 100% il progetto PON "MASSIMO"-"Monitoraggio in Area Sismica di Sistemi Monumentali"
    Beschreibung: Published
    Beschreibung: 44-57
    Beschreibung: 6A. Monitoraggio ambientale, sicurezza e territorio
    Beschreibung: N/A or not JCR
    Beschreibung: restricted
    Schlagwort(e): metodologia di indagine ; tecniche NDT ; rischio sismico ; beni storici ; tutela ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: article
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
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    SO2 AND ASH VOLCANIC PLUME RETRIEVALS FROM THE 24 NOVEMBER 2006 Mt. ETNA ERUPTION USING MSG-SEVIRI DATA: SO2 VALIDATION AND ASH CORRECTION PROCEDURE (2008)
    Details
    Publikationsdatum: 2021-12-02
    Beschreibung: Estimation of the daily trend of sulfur dioxide and ash from the thermal infrared measurements of the Spin Enhanced Visible and Infrared Imager (SEVIRI), on board the Meteosat Second Generation (MSG) geosynchronous satellite, has been carried out. The SO2 retrieval is validated vicariously by using satellite sensors and with ground measurements. The 24 November 2006 tropospheric eruption of Etna volcano is used as a test case. MSG-SEVIRI is an optical imaging radiometer characterized by 12 spectral channels, a high temporal resolution (one image every 15 minutes), and a 10 km2 footprint. The instrument’s spectral range includes the 7.3 and 8.7 mm bands (channels 6 and 7) used for SO2 retrieval and the 10.8 and 12.0 mm (channels 9 and 10) split window bands used for ash detection and retrievals. The SO2 columnar abundance and ash are retrieved simultaneously by means of a Look-Up Table least squares fit procedure for SO2 and using a Brightness Temperature Difference algorithm for ash. The SO2 retrievals obtained using different satellite sensors such as AIRS and MODIS have been carried out and compared with SEVIRI estimations. The results were validated using the permanent mini-DOAS ground system network (FLAME) installed and operated by INGV on Mt. Etna. Results show that the simultaneous presence of SO2 and ash in a volcanic plume yields a significant error in the SO2 columnar abundance retrieval in multispectral Thermal Infrared (TIR) data. The ash plume particles with high effective radius (from 1 to 10 mm) reduce the top of atmosphere radiance in the entire TIR spectral range, including the channels used for the SO2 retrieval. The net effect is a significant SO2 overestimation. To take this effect into account a novel ash correction procedure is presented and applied to the retrieval.
    Beschreibung: Unpublished
    Beschreibung: IAVCEI 2008 General Assembly Reykjavik - ICELAND 17-22 August
    Beschreibung: 1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
    Beschreibung: open
    Schlagwort(e): volcanic ash and SO2 retrievals ; MODIS retrievals ; MSG-SEVIRI retrievals ; ash correction procedure ; 01. Atmosphere::01.01. Atmosphere::01.01.07. Volcanic effects
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: Poster session
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
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    Unbekannt
    SAFER Response to Eyjafjallajökull and Merapi Volcanic Eruptions. In: ‘Let's embrace space’ Space Research achievements under the 7th Framework Programme, Edit by European Commission, DG Enterprise and Industry (2012)
    European Union
    Details
    Publikationsdatum: 2021-12-02
    Beschreibung: After PREVIEW FP6 Project’s conclusion, the WP30210 within FP7 GMES SAFER (Services and Applications For Emergency Response) Project has the main objective to refine and consolidate the Earthquake & Volcanoes (E&V) services that were just tested in previous activities and to provide operative services to Users, the Civil Protection Authorities. Here we mainly report objectives and results for the specific tasks related to Eruptive volcanic parameters (WP30211). Four specific products related to the volcanic events which will contribute to the monitoring of the phenomena and mitigation of the eruption effects are expected within the end of the Project. They mainly concern: SAR displacement, high temperature events (HTE), Ash detection, SO2 concentration and flux, and Ash dispersion models. In particular, here we mostly focus on the activity performed in the occasion of FP7 GMES SAFER activation during two major volcanic eruptions occurred in 2010. The first activation was for the Eyjafjallajökull eruption occurred in Iceland between April and May 2010, and the second one was solicited in the occasion of the eruption of Mount Merapi (Indonesia) in October-November 2010. Here we present the results of both remote sensing and modeling activities performed during these two events.
    Beschreibung: Published
    Beschreibung: 212-222
    Beschreibung: open
    Schlagwort(e): Volcanic risk ; Remote sensing technique ; Volcanic ash dispersal simulation ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring ; 04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk ; 05. General::05.01. Computational geophysics::05.01.01. Data processing
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: book chapter
    Standort Signatur Erwartet Verfügbarkeit
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