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Pietrapertosa, Carla
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Pietrapertosa, Carla
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- PublicationOpen AccessCorrection: Marchese et al. Mt. Etna Paroxysms of February–April 2021 Monitored and Quantified through a Multi-Platform Satellite Observing System. Remote Sens. 2021, 13, 3074(2022-06-08)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; In the original article [1], there were some mistakes in Figures 4 and 8, and Sections ‘Abstract’, ‘Discussion’, and ‘Conclusions’. The correct contents appears below. The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. The original article has been updated.200 11 - PublicationOpen AccessRobust satellite techniques for volcanicand seismic hazards monitoring(2004)
; ; ; ; ; ; ; ; ; ;Di Bello, G.; Dipartimento di Ingegneria e Fisica dell Ambiente, Università degli Studi della Basilicata, Potenza, Italy ;Filizzola, C.; Dipartimento di Ingegneria e Fisica dell Ambiente, Università degli Studi della Basilicata, Potenza, Italy ;Lacava, T.; Dipartimento di Ingegneria e Fisica dell Ambiente, Università degli Studi della Basilicata, Potenza, Italy ;Marchese, F.; Dipartimento di Scienze Geologiche, Università degli Studi della Basilicata, Potenza, Italy ;Pergola, N.; Istituto di Metodologie per l Analisi Ambientale (IMAA),CNR, Tito Scalo (PZ), Italy ;Pietrapertosa, C.; Istituto di Metodologie per l Analisi Ambientale (IMAA),CNR, Tito Scalo (PZ), Italy ;Piscitelli, S.; Istituto di Metodologie per l Analisi Ambientale (IMAA),CNR, Tito Scalo (PZ), Italy ;Scaffidi, I.; Istituto di Metodologie per l Analisi Ambientale (IMAA),CNR, Tito Scalo (PZ), Italy ;Tramutoli, V.; Dipartimento di Ingegneria e Fisica dell Ambiente, Università degli Studi della Basilicata, Potenza, Italy; ; ; ; ; ; ; ; Several satellite techniques have been proposed to monitor events related to seismic and volcanic activity. A selfadaptive approach (RAT, Robust AVHRR Techniques) has recently been proposed which seems able to recognise space-time anomalies, differently related to such events, also in the presence of highly variable contributions from atmospheric (transmittance), surface (emissivity and morphology) and observational (time/season, but also solar and satellite zenithal angles) conditions. On the basis of NOAA-AVHRR data, the RAT aprroach has already been applied to Mount Etna volcanic ash cloud monitoring in daytime, and to seismic area monitoring in Southern Italy. This paper presents the theoretical basis for the extension of RAT approach also to nighttime volcanic ash cloud detection, together with its possible implementation to lava flow monitoring. One example of successful forecasting (few days before) of a new lava vent opening during the Mount Etna eruption of July 2001 will be discussed in some detail. Progress on the use of the same approach on seismically active area monitoring will be discussed by comparison with previous results achieved on the Irpinia-Basilicata earthquake (MS = 6.9), which occurred on November 23rd 1980 in Southern Italy.220 409 - PublicationOpen AccessRobust satellite techniques for monitoring volcanic eruptions(2001-04)
; ; ; ; ;Pergola, N.; Istituto di Metodologie Avanzate di Analisi Ambientale, CNR, Tito Scalo (PZ), Italy ;Pietrapertosa, C.; Istituto di Metodologie Avanzate di Analisi Ambientale, CNR, Tito Scalo (PZ), Italy ;Lacava, T.; Università della Basilicata, DIFA, Potenza, Italy ;Tramutoli, V.; Università della Basilicata, DIFA, Potenza, Italy; ; ; Through this paper the robust approach to monitoring volcanic aerosols by satellite is applied to an extended set of events affecting Stromboli and Etna volcanoes to assess its performance in automated detection of eruptive clouds and in monitoring pre-eruptive emission activities. Using only NOAA/AVHRR data at hand (without any specific atmospheric model or ancillary ground-based measurements) the proposed method automatically discriminates meteorological from eruptive volcanic clouds and, in several cases, identified pre-eruptive anomalies in the emission rates not identified by traditional methods. The main merit of this approach is its effectiveness in recognising field anomalies also in the presence of a highly variable surface background as well as its intrinsic exportability not only on different geographic areas but also on different satellite instrumental packages. In particular, the possibility to extend the proposed method to the incoming new MSG/SEVIRI satellite package (which is going to fly next year) with its improved spectral (specific bands for SO 2 ) and temporal (up to 15 min) resolutions has been evaluated representing the natural continuation of this work.191 265 - PublicationOpen AccessMt. Etna Paroxysms of February–April 2021 Monitored and Quantified through a Multi-Platform Satellite Observing System(2021)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;On 16 February 2021, an eruptive paroxysm took place at Mt. Etna (Sicily, Italy), after continuous Strombolian activity recorded at summit craters, which intensified in December 2020. This was the first of 17 short, but violent, eruptive events occurring during February–April 2021, mostly at a time interval of about 2–3 days between each other. The paroxysms produced lava fountains (up to 1000 m high), huge tephra columns (up to 10–11 km above sea level), lava and pyroclastic flows, expanding 2–4 km towards East and South. The last event, which was characterised by about 3 days of almost continuous eruptive activity (30 March–1 April), generated the most lasting lava fountain (8–9 h). During some paroxysms, volcanic ash led to the temporary closure of the Vincenzo Bellini Catania International Airport. Heavy ash falls then affected the areas surrounding the volcano, in some cases reaching zones located hundreds of kilometres away from the eruptive vent. In this study, we investigate the Mt. Etna paroxysms mentioned above through a multi-platform satellite system. Results retrieved from Advanced Very High Resolution Radiometer (AVHRR), Moderate Resolution Imaging Spectroradiometer (MODIS), and Spinning Enhanced Visible and Infrared Imager (SEVIRI), starting from outputs of the Robust Satellite Techniques for Volcanoes (RSTVOLC), indicate that the 17th paroxysm (31 March–1 April) was the most powerful, with values of radiative power estimated around 14 GW. Moreover, by the analysis of SEVIRI data, we found that the 5th and 17th paroxysms were the most energetic. The Multispectral Instrument (MSI) and the Operational Land Imager (OLI), providing shortwave infrared (SWIR) data at 20/30 m spatial resolution, enabled an accurate localisation of active vents and the mapping of the areas inundated by lava flows. In addition, according to the Normalized Hotspot Indices (NHI) tool, the 1st and 3rd paroxysm (18 and 28 February) generated the largest thermal anomaly at Mt. Etna after June 2013, when Landsat-8 OLI data became available. Despite the impact of clouds/plumes, pixel saturation, and other factors (e.g., satellite viewing geometry) on thermal anomaly identification, the used multi-sensor approach allowed us to retrieve quantitative information about the 17 paroxysms occurring at Mt. Etna. This approach could support scientists in better interpreting changes in thermal activity, which could lead to future and more dangerous eruptions.399 48