Figura 1 – Esempio dell’andamento del noise osservato a tre stazioni sismiche durante le 2 settimane precedenti (REFws nel primo pannello in alto) e per le 4 settimane successive (W1-4) alla misura di lockdown (riga nera continua). La curva blu descrive l’ampiezza del noise osservato e mostra le oscillazioni giorno/notte, mentre…
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Ensemble-Based Data Assimilation of Volcanic Ash Clouds from Satellite Observations: Application to the 24 December 2018 Mt. Etna Explosive Eruption
Pardini F, S. Corradini, A. Costa, Tomaso Esposti Ongaro, L. Merucci, A. Neri, D. Stelitano and Mattia de’ Michieli Vitturi (2020).Atmosphere, 11/4, 359; https://doi.org/10.3390/atmos11040359. Abstract Accurate tracking and forecasting of ash dispersal in the atmosphere and quantification of its uncertainty are of fundamental importance for volcanic risk mitigation.
A framework for validation and benchmarking of pyroclastic current models
Example of a hierarchy of validation tiers for pyroclastic currents. (A) Complete system (public domain photo courtesy of B. Voight, Penn State University). (B) Subsystem (public domain photo courtesy of Jonathan Stone). (C) Benchmark case (photo courtesy of G. Lube, Massey University, NZ). (D) Unit problem (picture modified after Hallworth…
Estimating eruptive parameters and related uncertainties for pyroclastic density currents deposits: worked examples from Somma-Vesuvius (Italy)
Example of the identification of two segments (segment 1 in light orange and segment 2 in dark orange) for the MRL50 of the EU4b unit. Starting from these two segments (and from the others that compose the whole outline), different uncertainty bounds are traced according to the amount and quality…
Multiphase flow behaviour and hazard prediction of pyroclastic density currents
Conceptual models and multiscale spectra of PDCs Lube G., E.C. P. Breard, T. Esposti-Ongaro, J. Dufek and B. Brand (2020).Nature Reviews – Earth & Environment, 1, 348–365, https://doi.org/10.1038/s43017-020-0064-8. Abstract Pyroclastic density currents (PDCs) are dangerous multiphase flows originating from volcanic eruptions. PDCs cause more than a…
Via al bando per il conferimento di 11 borse di alta formazione e ricerca-azione ai giovani
L’Istituto Nazionale di Ottica (INO) del Consiglio Nazionale delle Ricerche, capofila del progetto ORMA “Alta fORMAzione e ricerca-azione presso enti di ricerca toscani”, ha indetto una selezione per il conferimento di 11 borse di studio di Alta Formazione da fruirsi presso: Consiglio Nazionale delle Ricerche (Area di Firenze e Area…
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