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  • 1
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    The first application of compositional data analysis (CoDA) in a multivariate perspective for detection of pollution source in sea sediments: The Pozzuoli Bay (Italy) case study (2021)
    Elsevier
    Details
    Publication Date: 2021-07-01
    Print ISSN: 0045-6535
    Electronic ISSN: 1879-1298
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Published by Elsevier
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    PAPER CURRENT
  • 2
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    Analysis of Sea Storm Events in the Mediterranean Sea: The Case Study of 28 December 2020 Sea Storm in the Gulf of Naples, Italy (2022)
    MDPI
    Details
    Publication Date: 2022-02-24
    Description: .
    Description: Published
    Description: 11460
    Description: 3T. Fisica dei terremoti e Sorgente Sismica
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 3
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    The first application of compositional data analysis (CoDA) in a multivariate perspective for detection of pollution source in sea sediments: The Pozzuoli Bay (Italy) case study (2022)
    Elsevier
    Details
    Publication Date: 2022-02-25
    Description: In the last decades, investigating geochemistry of sea sediments has been challenging in the eastern sector of Pozzuoli Bay, source of the metal(loid)s has been a matter of debate and the proposed origin of potentially toxic elements (PTEs) has been occasionally inconsistent. In this study, compositional data analysis (CoDA) was used because the results are independent of the measurement unit, the selected subgroup of elements and the order of chemicals in the dataset. The robust variant of principal component analysis (PCA) indicated that Hg, Cd, Cu, Pb and Zn were positively correlated with mud and organic matter in the sediments deposited in front of the former industrial site. Concentrations of these metals decrease along the cores and in the distal zone. Nevertheless, Al, As, V, Fe, Cr, Ni and sand form an association along the coast which strengthens with increasing distance from fumaroles in the proximal zone. It suggests that arsenic was mainly originated from the pyroclastic deposits of Campi Flegrei and some of the seepages with hydrothermal component, supported by low contribution of the variables in robust PCA of the sediments from distal zone. Therefore, this pioneering article suggests CoDA as a powerful tool for answering the long-lasting questions over sediment geochemistry in polluted areas.
    Description: Published
    Description: 129955
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: JCR Journal
    Keywords: Bagnoli industrial site; Campi Flegrei; Fractal analysis; Isometric log-ratio; Robust principal component analysis; Symmetric coordinate
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 4
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    A numerical study of arsenic contamination at the Bagnoli bay seabed by a semi-anthropogenic source. Analysis of current regime (2022)
    Elsevier
    Details
    Publication Date: 2022-02-25
    Description: Bagnoli Coroglio is an urban district of the City of Naples (South Italy), which fronts the Tyrrhenian Sea for nearly 3 km. It is part of the Campi Flegrei caldera, one of the most explosive volcanic areas in Europe. The need for redeveloping the site after the intense industrial activities of the twentieth century has prompted a remarkable research effort to investigate the pollution's degree, nature, and extent at both the land and seafloor. This article focuses on releasing thermal waters from a natural channel as a source of arsenic contamination in the Bagnoli marine sediments; the thermal waters originate from the nearby Agnano hot-springs and have been conveying artificially to the track since the mid-XIX century. As a first part of the outcomes, the work describes the flow regime that characterizes the marine area. The analysis has been conducted via numerical simulations carried out with the software package Delft3D, developed by Deltares, which employs dynamically interfacing modules to account for wave propagation, generation of currents, and presence of coastal structures. Climatic inputs to the software (waves, winds, and tide) have specifically been gathered and analyzed within this research. The numerical study has permitted to furnish, for the first time, a clear and systematic view of the hydrodynamic forcings that characterize the area under investigation. In particular, a leading role in the transport of pollutants could be played by rip current systems, whose characteristics vary with climate intensity (waves and wind) and coastal structures characteristics. Due to its inherently dynamic nature, the proposed approach seems especially desirable in situations where different contamination sources are compared. As such, it could be successfully applied to other sites also.
    Description: Published
    Description: 146811
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: JCR Journal
    Keywords: Anthropogenic contamination sources; Marine circulation; Numerical modeling; Pollutants advection; Rip currents; Seabed contamination by arsenic
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 5
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    An integrated approach for rock slope failure monitoring: The case study of Coroglio tuff cliff (Naples, Italy) - Preliminary results (2020)
    Details
    Publication Date: 2021-11-09
    Description: The paper re ports the i mple mentation of an integrate d syste m ai me d at the real-ti me monitoring of a series of physical parame ters controlling the r ock slope stability. The system has bee n installe d on the Cor oglio tuff cliff, loc ate d in the highly ur banize d coastal area of Naples (Italy) at the bor der of the acti ve volcanic cal der a of Campi Flegrei. Preliminar y results obtai ne d during the first ye ar of data ac quisition and monitoring acti vi ty (Dece mber 2014 – January 2016) are also discussed on the basis of statistical models. (3) (PDF) An integrated approach for rock slope failure monitoring: the case study of Coroglio tuff cliff (Naples, Italy) – preliminary results. Available from: https://www.researchgate.net/publication/299340773_An_integrated_approach_for_rock_slope_failure_monitoring_the_case_study_of_Coroglio_tuff_cliff_Naples_Italy_-_preliminary_results [accessed Feb 27 2020].
    Description: Published
    Description: 242-247
    Description: 1IT. Reti di monitoraggio e sorveglianza
    Description: N/A or not JCR
    Keywords: Cliff monitoring ; Campi Flegrei ; An integrated approach for rock slope failure monitoring: the case study of Coroglio tuff cliff (Naples, Italy) – preliminary results
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 6
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    Smart working e Ricerca: il punto di vista dei Ricercatori e Tecnologi dell’INGV (2021)
    STUDIUM e ADAPT University Press
    Details
    Publication Date: 2021-12-14
    Description: Obiettivi: Le finalità di questo articolo sono quelle di sottolineare le specificità della Ricerca rispetto alla amministrazione. Metodologia: è stata svolta un’analisi qualitativa giuridico-normativa e una indagine online quantitativa a 585 ricercatori e tecnologi dell’INGV sullo smart working. Risultati: nell’articolo vengono richiamate le norme che affermano come le attività di ricerca e le attività gestionali debbono avere una valutazione diversa. Inoltre, il CCNL della sezione Ricercatori e Tecnologi già rende “smart” e “agile” il lavoro di ricerca senza ricadere nella legge sullo smart working. Le risposte all’indagine mostrano una forte coesione nel rivendicare i principi di autonomia e libertà della ricerca. Limiti e implicazioni: negli EPR si fa Ricerca e la Ricerca ha bisogno di flessibilità e specificità organizzativa rispetto ad una P.A. prevalentemente amministrativa e lo smart working mal si adatta al mondo della Ricerca. Originalità: il percorso bottom-up di rivendicazione dei diritti della ricerca, attraverso interviste online, è originale e innovativo per evidenziare l’analisi delle criticità del lavoro agile che non deve essere applicato senza considerare il modello rispondente alle proprie esigenze e caratteristiche.
    Description: Published
    Description: 1-61
    Description: 1TM. Formazione
    Description: N/A or not JCR
    Keywords: Lavoro Agile ; INGV ; Enti Pubblici di Ricerca ; CCNL ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 7
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    Review of Recent Drilling Projects in Unconventional Geothermal Resources at Campi Flegrei Caldera, Cornubian Batholith, and Williston Sedimentary Basin (2022)
    MDPI
    Details
    Publication Date: 2023-07-21
    Description: Unconventional geothermal resource development can contribute to increase power generation from renewable energy sources in countries without conventional hydrothermal reservoirs, which are usually associated with magmatic activity and extensional faulting, as well as to expand the generation in those regions where conventional resources are already used. Three recent drilling experiences focused on the characterization of unconventional resources are described and compared: the Campi Flegrei Deep Drilling Project (CFDDP) in Italy, the United Downs Deep Geothermal Power (UDDGP) project in the United Kingdom, and the DEEP Earth Energy Production in Canada. The main aspects of each project are described (geology, drilling, data collection, communication strategies) and compared to discuss challenges encountered at the tree sites considered, including a scientific drilling project (CFDDP) and two industrial ones (UDDGP and DEEP). The first project, at the first stage of pilot hole, although not reaching deep supercritical targets, showed extremely high, very rare thermal gradients even at shallow depths. Although each project has its own history, as well as social and economic context, the lessons learned at each drilling site can be used to further facilitate geothermal energy development.
    Description: Published
    Description: 3306
    Description: 1TR. Georisorse
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 8
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    Gruppo Operativo EMERSITO - Evento sismico Costa Marchigiana 2022 - Rapporto N. 1 del 09/11/2022 (2022)
    Details
    Publication Date: 2022-11-10
    Description: Il giorno 9 Novembre 2022, alle 06:07:24 UTC (07:07:24 ora locale) un terremoto di magnitudo momento (MW) pari a 5.5 ha interessato la Costa Marchigiana Pesarese (Pesaro Urbino). A causa della magnitudo del mainshock e del livello di danneggiamento riscontrato, l’INGV ha attivato il gruppo operativo EMERSITO (http://emersitoweb.rm.ingv.it/index.php/it/), il cui obiettivo è di svolgere e coordinare le campagne di monitoraggio per studi di effetti di sito e di microzonazione sismica. Durante le prime fasi di un’emergenza sismica, l’attività principale del gruppo operativo EMERSITO consiste, attraverso la costituzione di gruppi di lavoro, nel reperimento delle informazioni geologiche e geofisiche, nell’analisi dei dati sismici esistenti, nella pianificazione di misure sismologiche e geofisiche ed in attività propedeutiche alla microzonazione sismica. Nel caso specifico della sequenza sismica della Costa Marchigiana Pesarese: - sono state reperite informazioni di letteratura sugli effetti di sito già osservati nella zona colpita, sulla cartografia geologica e sulla microzonazione sismica disponibile; - sono state reperite le informazioni di caratterizzazione dei siti delle stazioni sismiche permanenti presenti nell’area (http://itaca.mi.ingv.it/ItacaNet_31 e http://crisp.ingv.it) e sono stati rianalizzati alcuni dati disponibili (http://eida.ingv.it/). - è stata pianificata l’installazione di una rete sismica temporanea nella zona colpita dal terremoto, nei comuni di Ancona e Senigallia. La scelta delle aree è stata guidata principalmente dalla prossimità con l’area epicentrale, dalla disponibilità di studi di microzonazione sismica e di carte geologiche a differenti scale di rappresentazione, dalla distribuzione dei parametri di scuotimento del suolo e della sismicità in tempo reale.
    Description: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Description: Published
    Description: 2SR TERREMOTI - Gestione delle emergenze sismiche e da maremoto
    Keywords: 04.06. Seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
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  • 9
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    Seawater intrusion and hydrogeochemical processes in the Ischia Island groundwater system (2023)
    Elsevier
    Details
    Publication Date: 2023-03-16
    Description: Ischia is a volcanic island located NW of the Gulf of Naples (South Italy). The island of Ischia is a structurally complex hydrothermal active system that hosts a fractured aquifer system whose geometry and hydraulic properties are still partly unknown. The aquifer system of Ischia, composed mainly of Quaternary volcanic deposits and marine sediments, exhibits physically and chemically heterogeneous waters. The intense seismicity and hydrothermal activity are expressed by numerous fumaroles and thermal springs, which have been exploited since ancient times, promoting, and supporting the world-renowned tourist activities that constitute the main economic activity of the island. The aim of this study is to determine the hydrogeochemical processes in the Ischia aquifer system. Also, we calculated the proportion of seawater in the aquifer system of Ischia using historical hydrogeochemical data relative to two sampling campaigns. Sixty-nine groundwater and thermal spring samples collected in July 2000 were analyzed and compared with previously published data to identify the changes in seawater contribution. The sample analysis shows that different physicochemical processes occur in the groundwater of Ischia Island, where recharge water, seawater and deep fluids interact and overlap with different intensity. The calculated saline factor indicates a seawater content of up to 70% in some samples near the coast, suggesting that seawater intrusion is the main process in these areas. Later data show that seawater intrusion increases around the coastline with up to 93% seawater content. Finally, data analysis shows that although a change in chemical composition is observed, no variation in thermal water temperature is recorded over time.
    Description: This paper is partially funded by Program U-Apoya (N/A1/2014), University of Chile who granted Dr. Linda Daniele and by project PCI ITAL170012. Additional funding was provided by project M02761 Ministero degli Affari Esteri e della Cooperazione Internazionale to Renato Somma and by ANID-FONDAP #15200001/ACE210005 (Centro de Excelencia en Geotermia de los Andes, CEGA). Finally, we acknowledge chief editor Stefano Albanese for handling the manuscript. An anonymous reviewer is acknowledged for the helpful comments and suggestions.
    Description: Published
    Description: 106935
    Description: 9T. Geochimica dei fluidi applicata allo studio e al monitoraggio di aree sismiche
    Description: 1V. Storia eruttiva
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: 1TR. Georisorse
    Description: 6SR VULCANI – Servizi e ricerca per la società
    Description: 2IT. Laboratori analitici e sperimentali
    Description: JCR Journal
    Keywords: Seawater intrusion ; Water-rock interaction ; Thermal waters ; Ischia Island ; 04.08. Volcanology ; 03. Hydrosphere ; 03.02. Hydrology ; 05.08. Risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
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  • 10
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    Arsenic contamination at the Bagnoli Bay seabed (South Italy) via particle tracking numerical modeling: Pollution patterns from stationary climatic forcings (2023)
    Elsevier
    Details
    Publication Date: 2023-03-16
    Description: Almost 140 years of industrial exploitation have severely degraded the environment of Bagnoli Coroglio (BC), the westernmost neighborhood of the city of Naples (Italy). In this peculiar area, however, geogenic processes overlap with the impact of human activities, making it difficult to distinguish between anthropogenic and geogenic pollution sources. This is particularly true for Arsenic, the concentration of which in the marine sediments largely exceeds the tolerable level for human health and the background value for local pyroclastics. After several studies have used traditional tools based on multivariate statistics, this article attempts at tackling the problem via numerical modeling, which provides a deeper insight into the physics that governs the pollution process. Therefore, we use a particle tracking model to assess whether arsenic levels in the seabed can be affected by the influx of thermal water from an artificial channel outfalling at the westernmost part of the coast The climatic forcings that drive the marine circulation are simplified to basic "scenarios", in which wind and waves are stationary in strength and direction. Since the simulation time is much less than the contamination timescale, the comparison between numerical results and measurements is essentially qualitative and concerns the shape of contamination contours. It was found the primary forcing that enables seabed pollution is the tidal circulation, which, moreover, acts continuously in time. Quantitative arguments based on regression analysis suggest the discharge of thermal water explains almost a quarter of the observed pollution, which is consistent with previous research based on multivariate statistics.
    Description: This research results from a collaboration between the University of Naples Federico II and the National Institute of Geophysics and Vulcanology (INGV). The partnership is born in the frame of the multidisciplinary project ABBaCo, funded by the Italian Ministry of Education and Research, which aimed to provide innovative and environmentally friendly solutions for restoring the Bagnoli area.
    Description: Published
    Description: 134955
    Description: 9T. Geochimica dei fluidi applicata allo studio e al monitoraggio di aree sismiche
    Description: 3V. Proprietà chimico-fisiche dei magmi e dei prodotti vulcanici
    Description: 6A. Geochimica per l'ambiente e geologia medica
    Description: 1TR. Georisorse
    Description: 7SR AMBIENTE – Servizi e ricerca per la società
    Description: 2IT. Laboratori analitici e sperimentali
    Description: JCR Journal
    Keywords: Adsorption ; Arsenic contamination in marine sediments ; Diffusion in coastal waters ; Numerical modeling ; Particle tracking ; Sediments settling ; 03. Hydrosphere ; 03.02. Hydrology ; 03.04. Chemical and biological ; 04.04. Geology ; 04.08. Volcanology ; 05.08. Risk ; 05.06. Methods
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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