Options
Bellucci Sessa, Eliana
Loading...
Preferred name
Bellucci Sessa, Eliana
Email
eliana.bellucci@ingv.it
Staff
staff
ORCID
41 results
Now showing 1 - 10 of 41
- PublicationOpen AccessAnalisi morfometrica integrata in ambiente GIS applicata ad aree tettonicamente attive come contributo alla valutazione dei rischi ambientali(2007)
; ; ; ; ; ;Nappi, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Alessio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Vilardo, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Bellucci Sessa, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Ventura, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; ; ; L'obiettivo di questo lavoro è quello di sperimentare e descrivere una metodologia integrata di indagine che possa essere valida per l'analisi delle deformazioni indotte sul territorio dalla tettonica e dalla morfogenesi a scala regionale e locale.266 602 - PublicationOpen AccessEstimation of the Uncertainties Introduced in Thermal Map Mosaic: A Case of Study with PIX4D Mapper Software(2023-09-06)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The aim of this study is to analyse problems related to thermal mapping obtained from thermal data acquired from unmanned aerial systems (UAS) equipped with thermal cameras. We focused on an accurate analysis of uncertainties introduced by the PIX4D Mapper software version 4.4.12 used to obtain the surface temperature maps of thermal images acquired using the UAS. To achieve this aim, we used artificial thermal references during the surveys, as well as natural hot targets, i.e., thermal anomalies in the Pisciarelli hydrothermal system in Campi Flegrei caldera (CFc). Artificial thermal targets, expressly created and designed for this goal, are a prototype here called “developed thermal target” (DTT) created by the drone laboratory at Istituto Nazionale di Geofisica e Vulcanologia—Osservatorio Vesuviano (INGV-OV).We show the results obtained through three surveys, and during the last two, thermal targets were positioned on land at different flight heights of the UAS. Different heights were also necessary to test the spatial resolution of the DTT with the used thermal camera as well as possible temperature differences between the raw images acquired via UAS with the thermal mapping obtained from the PIX4D Mapper software. In this work, we estimate the uncertainty that may be introduced by the mosaic procedure, and furthermore we find an attenuation of the measured temperatures introduced by the different distances between the thermal anomaly and sensor. These results appear to be of great importance for the subsequent calibration phase of the thermal maps, especially in cases where these methodologies are applied for the purposes of monitoring volcanic/geothermal areas.239 22 - PublicationOpen AccessCaldera dei Campi Flegrei: potenzialità di un SIT per valutazioni di pericolosità vulcanica(2008-10-21)
; ; ; ; ;Bessucci Sessa, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Buononato, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Di Vito, M. A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Vilardo, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; ; La caldera dei Campi Flegrei è un’area vulcanica attiva, attualmente in stato di quiescenza dal 1538 d.C., soggetta ad un elevato rischio vulcanico per la presenza di numerosi centri abitati e per l’immediata vicinanza alla città di Napoli. Le due maggiori eruzioni esplosive dei Campi Flegrei risalgono a circa 39 ka e 15 ka ed hanno prodotto l’Ignimbrite Campana ed il Tufo Giallo Napoletano, i depositi più noti dell’area napoletana, distribuiti su aree vastissime. Al presente, il sistema magmatico risulta essere ancora attivo, come testimoniato dall’eruzione di Monte Nuovo nel 1538, dai recenti episodi bradisismici e dall’attività fumarolica e idrotermale. Al fine di rendere disponibile alla comunità scientifica ed agli enti preposti alla gestione delle emergenze un efficace strumento tecnologico, a supporto delle valutazioni di pericolosità vulcanica, è stato implementato un sistema informativo territoriale strutturato sulla base di un database in cui sono state raccolte e organizzate tutte le informazioni vulcanologiche e territoriali sull’area. In questo lavoro, attingendo al patrimonio informativo disponibile, sono state effettuate analisi di dettaglio finalizzate alla produzione di nuovi tematismi da utilizzare per la definizione degli scenari di evento, attraverso i quali simulare le conseguenze di un evento vulcanico, di caratteristiche prefissate, che si verifichi nell’area dei Campi Flegrei.391 548 - PublicationOpen AccessIl bradisismo ai Campi FlegreiLo studio dell’andamento del bradisismo ai Campi Flegrei, a partire dal IV sec. d.C. nel corso dei secoli fino ai tempi moderni, è stato possibile grazie a osservazioni compiute sulle rovine di un monumento situato a poche decine di metri dal porto di Pozzuoli: il Macellum, meglio noto come Tempio di Serapide o Serapeo. La sua peculiarità è la presenza, a varie altezze sulle tre colonne ancora erette, di fori di litodomi che sono indice del livello marino nel passato. Grazie alla datazione di tali fori è stato possibile ricostruire le oscillazioni del livello del mare dovute al sollevamento o abbassamento del suolo a Pozzuoli nel tempo.
108 38 - PublicationOpen AccessUna metodologia sistemica per la valutazione della vulnerabilità sismica dei Comuni della Provincia di Benevento(2007-11-06)
; ; ; ; ;Vilardo, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Profice, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Bellucci Sessa, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Nappi, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; ; The aim of this work is to produce a prototype of an Integrated Geographic Informative System designed to characterize the seismic vulnerability of the municipalities of the Benevento province. The developed GIS model algorithm is based on a systemic methodology which accounts for interactions among the several factors involved into the system. The implemented algorithm allows to estimate a vulnerability index, which in turn led to the creation of vulnerability maps. This System, which could be enriched with new thematic data will provides the basis for future researches in the field and make available to local decision-makers, agencies and community planners basic information to be used in managing the seismic risk.177 749 - PublicationOpen AccessAnalisi morfometrica integrata in ambiente GIS applicata ad aree tettonicamente attive(2009)
; ; ; ; ;Nappi, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Alessio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Bellucci Sessa, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Vilardo, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; ; This paper describes a methodology of integrated analysis applied to the study of geological deformation due to recent tectonics and morphogenesis on a regional and local scale. The analysis has been carried out by integrating morphological data, morphometrical data derived by DTMs (Digital Terrain Models) processing, with literature geological and geomorphological data, aerial photo interpretation and field surveys, as well as with seismological data. The study areas that have been selected for testing our methodology are the Agri Valley (Campania-Lucania regions), hit by the strong historical earthquake of 26th December, 1857 (Imax=XI, Me=7.0); the Tammaro River basin (Campania-Molise regions), affected in historical time by the strong earthquake of 5th June, 1688 (Imax=XI, Me=6.7) and in recent time by seismic sequences of moderate energy; the Ischia Island (Thyrrenian sea - Campania region), characterized by historical and recent volcano-tectonic activity. Finally, the consistency and congruency of the obtained results have been verified in the light of a coherent model of deformation source. The results obtained in this work have showed the applicability of this methodology, so far utilized only for tectonic areas with active deformation, also to active volcanic areas, proving the advantage of such methodological approach for the assessment of geological-environmental hazard in an area579 344 - PublicationOpen AccessThe Dependence on the Moho Depth of the b-Value of the Gutenberg–Richter Law(2022)
; ; ; ; ; ; ; ;; We investigate the dependence of the Gutenberg–Richter b parameter on the crustal thickness quantified by the Moho depth, for nine different regional catalogs. We find that, for all the catalogs considered in our study, the b‐value is larger in areas presenting a thicker crust. This result appears in apparent contradiction with previous findings of a b decreasing with the focal depth. However, both the results are consistent with acoustic emission experiments, indicating a b‐value inversely proportion to the applied differential stress. Our results can be indeed interpreted as the signature of a larger stress concentration in areas presenting a thinner crust. This is compatible with the scenario where postseismic deformation plays a central role in stress concentration and in aftershock triggering.223 131 - PublicationOpen AccessSurface temperature multiscale monitoring by thermal infrared satellite and ground images at Campi Flegrei volcanic area (Italy)(Geophysical Research Abstracts Vol. 20, EGU2018-8132, 2018 EGU General Assembly 2018, 2018-04-08)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; The Campi Flegrei volcanic area (Italy) is part of the Neapolitan volcanic district, a high volcanic risk area where population and human activities are exposed. It is monitored by INGV multi-platform surveillance networks systems. In this work we performed a comparison of the surface temperature in volcanic areas between satellite imagery in the Thermal Infrared (TIR) bandwidth and infrared thermal scenes acquired by ground cameras network (TIRNet). TIRS on LANDSAT and ASTER on NASA-TERRA provide thermal IR channels to monitor the evolution of the surface temperatures on Campi Flegrei area. The spatial resolution of the TIR LANDSAT8 data is 100 m and ASTER resolution is 90 m. Temporal resolution is 16 days for both satellites. TIRNet network has been developed by INGV-Osservatorio Vesuviano for long-term volcanic surveillance of Campi Flegrei caldera through the acquisition of thermal infrared images. The system is currently composed of 5 permanent stations equipped with FLIR A645SC cameras using a 640x480 resolution IR sensor. Acquisitions and data transmission are managed remotely through technology specially developed at INGV laboratories in Naples. To improve the systematic use of satellite data in the monitoring procedures of Volcanic Observatories, a suitable integration and validation strategy is needed, also considering that current satellite missions do not provide TIR data with optimal characteristics to observe small thermal anomalies that may indicate changes in the volcanic activity. The presented procedure has been applied to the analysis of Solfatara Crater and is based on 2 different steps: 1) two parallel processing chains to produce ground temperature data both from satellite and ground cameras; 2) data integration and comparison. The ground cameras images generally acquire scenes of portion of the crater slopes characterized by significant thermal anomalies due to fumarole fields. In order to compare the satellite and ground cameras scenes, it has been necessary to take into account the observation geometries. All thermal images of the TIRNet have been georeferenced to the UTM WGS84 system, a regular grid of 30x30 meters has been created to select polygonal areas corresponding only to the cells containing the georeferenced TIR images acquired by different TIRnet stations. The surface temperature images retrieved by ASTER and LANDSAT data, have been georeferenced and resampled in cells of 30x30 with a careful control in maintaining the original cell values. The results show a good correspondence between trends of surface ground temperatures and satellite temperatures. This allow to calibrate the surface temperatures of the satellite imagery and to extend the area of analysis of thermal anomalies in the Campi Flegrei caldera. The effectiveness of this methodology allow to integrate the temperature data acquired by TIRNet with the satellite temperature data acquiredbefore the installation of TIRNet ground network.140 87 - PublicationRestrictedA case study comparing landscape metrics to geologic and seismic data from the Ischia Island (Southern Italy)(2010-05-11)
; ; ; ;Nappi, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Alessio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia ;Bellucci Sessa, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia; ; In this paper, a high-resolution digital elevation model (DEM) of the Ischia Island has been created, and a digital terrain analysis has been carried out to identify of morphostructural elements of this landscape. Ischia is an active volcano located in the Western sector of the Gulf of Naples that is characterized by historical and recent volcano-tectonic activity. The local kinematics is unclear, and so identification of tectonic lineaments might elucidate recent tectonic processes. We identify morphostructural features using geomorphic parameters derived from analysis of the high-resolution DEM. Successively, the comparison with known geologic features provides validation of the extracted morphotectonic data.We found that one of the main directions of the morphostructural lineaments extracted is consistent with the regional NE–SW extensional stress field; moreover, the lineaments on the northern flank of Mt. Epomeo are strictly correlated with the mapped faults that have a history of strong and moderate earthquakes. The technique implemented for this study area allowed us to identify new original morphostructural lineaments in a reproducible way that may be useful for investigating various landscapes where field survey is not possible. Indeed, the extracted lineaments represent potential active faults near the northern coast of the Ischia Island, where both seismicity and intense urbanization delineate a high seismic risk.500 34 - PublicationOpen AccessPerception of risk for natural hazards in Campania Region (Southern Italy)(2019)
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; As far as the European continent, Region Campania in Southern Italy presents an almost unique combination - in terms of both variety and intensity-of potential risks for the residents: this densely populated area is actually most notably exposed to hydrogeological (flood and landslides), seismic, volcanic hazards In such a setting, alongside with an up-to-date scientific approach to risks analysis and the constant update of emergency plans, it is of paramount importance that a “risk awareness culture” should be developed by the residents. In order to maximize the effectiveness of the communication campaigns to support and improve such a culture, a study of risk perception has been carried out in 12 municipalities and 2 territorial unions of Campania Region. Different areas have been examined, the overall exposure of each almost always being characterised by a prevalent specific risk: seismic, volcanic, hydrogeological. The results of this surveys show that the historical memory has a crucial role on the hazards perception. It's also worth of noting that few communities consider that they have been sufficiently well-informed by civil protection agencies and/or authorities about the natural hazards specific to their area and the practical procedures for evacuation. To overcome these deficiencies emergency plans should be designed, developed and practised through the collaboration of all key stakeholders, from civil protection authorities to the residents communities.1134 57