From field data to numerical modeling: evaluating ...
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From field data to numerical modeling: evaluating ...
... and shallow-water approximations of the process dynamics, in reproducing reconstructed field data of two eruptions of Somma-Vesuvius (i.e. the Pompeii and ...
From field data to numerical modeling: evaluating simplified physical models for assessing pyroclastic density current hazard at Somma-Vesuvio (Italy) Alessandro Tadini (1,2), Augusto Neri(1), Raffaello Cioni(2), Andrea Bevilacqua(1,3), Tomaso Esposti Ongaro(1) (1) Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Pisa, Pisa, Italy (2)Dipartimento di Scienze della Terra, Università di Firenze, Firenze, Italy (3) Geology Department, SUNY at Buffalo, Buffalo, NY, USA
Pyroclastic Density Currents (PDC) are one of the main sources of hazard from explosive eruptions. Despite such processes are still poorly understood, there is the need to quantitatively assess their hazard with the aim to produce reliable eruptive scenarios and probabilistic hazard maps. Consideration of the main uncertainty sources affecting the data and the models are also needed. This study aims to evaluate the applicability and accuracy of simplified PDC flow modeling, based on empirical evidences, integral models and shallow-water approximations of the process dynamics, in reproducing reconstructed field data of two eruptions of Somma-Vesuvius (i.e. the Pompeii and AD 472 “Pollena” eruptions).
