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  • 1
    Publication Date: 2023-01-16
    Description: Improving volcanic gas monitoring techniques is central to better understanding open-vent, persistently degassing volcanoes. SO2 cameras are increasingly used in volcanic gas studies, but observations are commonly limited to one single camera alone viewing the volcanic plume from a specific viewing direction. Here, we report on high frequency (0.5 Hz) systematic measurements of the SO2 flux at Stromboli, covering a 1-year long observation period (June 2017-June 2018), obtained from two permanent SO2 cameras using the same automated algorithm, but imaging the plume from two different viewing directions. Our aim is to experimentally validate the robustness of automatic SO2 camera for volcano monitoring and to demonstrate the advantage of using two co-exposed SO2 camera stations to better capturing degassing dynamics at open-vent volcanoes. The SO2 flux time-series derived from the two SO2 camera stations exhibit good match, demonstrating the robustness of the automatic SO2 camera method. Our high-temporal resolution SO2 records resolve individual Strombolian explosions as transient, repetitive gas bursts produced by the sudden release of over pressurized gas pockets and scoriae. Calculations show that explosive degassing activity accounts for ∼10% of the total SO2 emission budget (dominated by passive degassing) during mild regular open-vent activity. We show that the temporal variations of the explosive SO2 flux go in tandem with changes in total SO2 flux and VLP seismicity, implicating some commonality in the source processes controlling passive degassing and explosive activity. We exploited the spatial resolution of SO2 camera to discriminate degassing at two distinct regions of the crater area, and to minimize biases due by the station position respect to the target plume. We find that the SO2 fluxes from southwest-central (SWCC) and northeast (NEC) crater areas oscillate coherently but those from the NEC are more sensitive to the changes in the volcanic intensity. We interpret this as due to preferential gas/magma channeling into the structurally weaker north-eastern portion of the crater terrace in response to increasing supply rate of buoyant, bubble-rich magma in the shallow plumbing system.
    Description: Published
    Description: 972071
    Description: 5V. Processi eruttivi e post-eruttivi
    Description: JCR Journal
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
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    Firenze University Press
    Publication Date: 2024-04-01
    Description: This book is a collection of contributions by the Italian scholarship fellows at the Deutsches Historisches Institut of Rome over the last decade. It is intended as a tribute to one of the leading mediaevalists at international level, a scrupulous and sensitive scholar of Italian history. Over and above all this, it is a sign of gratitude from the young academics who have been able to consolidate their research thanks to such scholarships. Consequently the 14 contributions that make up the book do not share the academic orientation of any particular school, but range over various research sectors and different chronological periods.
    Description: Il volume, che raccoglie i contributi di ex borsisti italiani dell'ultimo decennio del Deutsches Historisches Institut di Roma, vuole essere un omaggio a uno dei medievisti più noti a livello internazionale e all'attento e sensibile studioso della storia italiana, ma soprattutto un segno di gratitudine di giovani studiosi che con tale borsa hanno potuto consolidare i loro percorsi di ricerca. I 14 contributi che lo compongono non sono quindi accomunati da un comune orientamento formativo di scuola, ma spaziano fra diversi settori di ricerca e differenti ambiti cronologici.
    Keywords: deutsches historisches institut ; arnold esch ; thema EDItEUR::N History and Archaeology ; thema EDItEUR::3 Time period qualifiers::3K CE period up to c 1500
    Language: Italian
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  • 3
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    Firenze University Press
    Publication Date: 2024-04-01
    Description: Il volume, che raccoglie i contributi di ex borsisti italiani dell'ultimo decennio del Deutsches Historisches Institut di Roma, vuole essere un omaggio a uno dei medievisti più noti a livello internazionale e all'attento e sensibile studioso della storia italiana, ma soprattutto un segno di gratitudine di giovani studiosi che con tale borsa hanno potuto consolidare i loro percorsi di ricerca. I 14 contributi che lo compongono non sono quindi accomunati da un comune orientamento formativo di scuola, ma spaziano fra diversi settori di ricerca e differenti ambiti cronologici.
    Keywords: D111-203 ; Open Access ; Saggi ; Storia ; Medioevo ; thema EDItEUR::N History and Archaeology ; thema EDItEUR::3 Time period qualifiers::3K CE period up to c 1500
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  • 4
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    Firenze University Press
    Publication Date: 2024-04-02
    Description: The book outlines the processes of "bureaucratization" of the financial offices of the Kingdom of Naples, dwelling on the administrative praxis of the Regia Camera della Sommaria. It starts from the critical edition of Repertorium Alphabeticum Solutionum Fiscalium Regni Siciliae, a XVIth century manuscipt produced by Sommaria, rich with information about the whole area of Southern Italy, which became particularly precious after the destruction of the Aragonese documentation of the State Archive in Naples in the fire of September 1943. The research originates in the "slow" reading of a text, in the inquiry on its characteristics, structure, sources, context, events which led to its writing and on the practices of administrative work which it was to describe and orientate. This volume reconstructs also the long process which led to the Sommaria office, between the last decades of the XIIIth century and the first of the XVth century, its competences and working from the Aragonese age, up to the middle of the XVIth centuryt, on the basis of published and unpublished sources, kept in various Italian and European archives and libraries, in a costant comparison with the wide international bibliography.
    Keywords: thema EDItEUR::N History and Archaeology::NH History::NHB General and world history
    Language: Italian
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