Zobrazeno 1 - 10
of 97
pro vyhledávání: '"M. de' Michieli Vitturi"'
Autor:
M. A. Di Vito, I. Rucco, S. de Vita, D. M. Doronzo, M. Bisson, M. de' Michieli Vitturi, M. Rosi, L. Sandri, G. Zanchetta, E. Zanella, A. Costa
Publikováno v:
Solid Earth, Vol 15, Pp 405-436 (2024)
Lahars represent some of the most dangerous phenomena in volcanic areas for their destructive power, causing dramatic changes in the landscape with no premonitory signs and impacting the population and infrastructure. In this regard, the Campanian Pl
Externí odkaz:
https://doaj.org/article/53141d28816e4e138feec73b8436c3ce
Publikováno v:
Solid Earth, Vol 15, Pp 437-458 (2024)
In this paper we present a new model for the simulation of lahars based on the depth-averaged code IMEX-SfloW2D with new governing and constitutive equations introduced to better describe the dynamics of lahars. A thorough sensitivity analysis is car
Externí odkaz:
https://doaj.org/article/b9d4cb1f1eaf462baf65a02a52f1fff0
Autor:
L. Sandri, M. de' Michieli Vitturi, A. Costa, M. A. Di Vito, I. Rucco, D. M. Doronzo, M. Bisson, R. Gianardi, S. de Vita, R. Sulpizio
Publikováno v:
Solid Earth, Vol 15, Pp 459-476 (2024)
In this study we present a novel general methodology for probabilistic volcanic hazard assessment (PVHA) for lahars. We apply the methodology to perform a probabilistic assessment in the Campanian Plain (southern Italy), focusing on syn-eruptive laha
Externí odkaz:
https://doaj.org/article/ed77f0a6ab674f70b57027f4722980c8
Publikováno v:
Geoscientific Model Development, Vol 16, Pp 6309-6336 (2023)
We present developments to the physical model and the open-source numerical code IMEX_SfloW2D (de' Michieli Vitturi et al., 2019). These developments consist of a generalization of the depth-averaged (shallow-water) fluid equations to describe a poly
Externí odkaz:
https://doaj.org/article/89350a14cefb48dc912da11c124500f3
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 3773-3796 (2022)
Numerical simulations of volcanic processes play a fundamental role in understanding the dynamics of magma storage, ascent, and eruption. The recent extraordinary progress in computer performance and improvements in numerical modeling techniques allo
Externí odkaz:
https://doaj.org/article/765e58ce3c434668a3fab0f2a39a4ff8
Autor:
M. de' Michieli Vitturi, F. Pardini
Publikováno v:
Geoscientific Model Development, Vol 14, Pp 1345-1377 (2021)
In this paper, we present a new version of PLUME-MoM, a 1-D integral volcanic plume model based on the method of moments for the description of the polydispersity in solid particles. The model describes the steady-state dynamics of a plume in a 3-D c
Externí odkaz:
https://doaj.org/article/ef3ca1ac86a44c1c98a570f4f45c7f5c
Publikováno v:
Geoscientific Model Development, Vol 12, Pp 581-595 (2019)
Pyroclastic avalanches are a type of granular flow generated at active volcanoes by different mechanisms, including the collapse of steep pyroclastic deposits (e.g., scoria and ash cones), fountaining during moderately explosive eruptions, and crumbl
Externí odkaz:
https://doaj.org/article/2c432c543cdf4cce9c88277fd27b1350
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-10 (2016)
The quantification of timing for crystallization and exsolution processes are fundamental to our understanding of basaltic magma ascent dynamics. Here, the authors constrain timings to show that plagioclase reaches equilibrium in 1-2 hours, whereas a
Externí odkaz:
https://doaj.org/article/94a22e7fd6e84b63be1e081fe3d731fc
Publikováno v:
Geoscientific Model Development, Vol 8, Iss 8, Pp 2447-2463 (2015)
In this paper a new integral mathematical model for volcanic plumes, named PLUME-MoM, is presented. The model describes the steady-state dynamics of a plume in a 3-D coordinate system, accounting for continuous variability in particle size distributi
Externí odkaz:
https://doaj.org/article/dd8370df1ab449a68431ebff73d7f876
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