Experimental evidence links volcanic particle characteristics to pyroclastic flow hazard
Por:
Dellino P., Büttner R., Dioguardi F., Doronzo D.M., La Volpe L., Mele D., Sonder I., Sulpizio R., Zimanowski B.
Publicada:
1 ene 2010
Resumen:
Pyroclastic flows represent the most hazardous events of explosive volcanism, one striking example being the famous historical eruption of Vesuvius that destroyed Pompeii (AD 79). Much of our knowledge of the mechanics of pyroclastic flows comes from theoretical models and numerical simulations. Valuable data are also stored in the geological record of past eruptions, including the particles contained in pyroclastic deposits, but the deposit characteristics are rarely used for quantifying the destructive potential of pyroclastic flows. By means of experiments, we validate a model that is based on data from pyroclastic deposits. The model allows the reconstruction of the current's fluid-dynamic behaviour. Model results are consistent with measured values of dynamic pressure in the experiments, and allow the quantification of the damage potential of pyroclastic flows. © 2010 Elsevier B.V.
Filiaciones:
Dellino P.:
Centro Interdipartimentale di Ricerca sul Rischio Sismico e Vulcanico (CIRISIVU), C/o Dipartimento Geomineralogico, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
Büttner R.:
Physikalisch Vulkanologisches Labor, Universität Würzburg, Pleicherwall 1, 97070, Würzburg, Germany
Dioguardi F.:
Centro Interdipartimentale di Ricerca sul Rischio Sismico e Vulcanico (CIRISIVU), C/o Dipartimento Geomineralogico, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
Doronzo D.M.:
Centro Interdipartimentale di Ricerca sul Rischio Sismico e Vulcanico (CIRISIVU), C/o Dipartimento Geomineralogico, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
La Volpe L.:
Centro Interdipartimentale di Ricerca sul Rischio Sismico e Vulcanico (CIRISIVU), C/o Dipartimento Geomineralogico, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
Mele D.:
Centro Interdipartimentale di Ricerca sul Rischio Sismico e Vulcanico (CIRISIVU), C/o Dipartimento Geomineralogico, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
Sonder I.:
Physikalisch Vulkanologisches Labor, Universität Würzburg, Pleicherwall 1, 97070, Würzburg, Germany
Sulpizio R.:
Centro Interdipartimentale di Ricerca sul Rischio Sismico e Vulcanico (CIRISIVU), C/o Dipartimento Geomineralogico, Università di Bari, Via E. Orabona 4, 70125 Bari, Italy
Zimanowski B.:
Physikalisch Vulkanologisches Labor, Universität Würzburg, Pleicherwall 1, 97070, Würzburg, Germany
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