Simulation of block‐and‐ash flows and ash‐cloud surges of the 2010 eruption of Merapi volcano with a two‐layer model
Simulation of block‐and‐ash flows and ash‐cloud surges of the 2010 eruption of Merapi volcano with a two‐layer model
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使用双层模型模拟 2010 年默拉皮火山喷发的块状火山灰流和火山灰云涌
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
Charley Merciecca
中科院分区：
文献类型：
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作者：
K. Kelfoun;V. Gueugneau;J. Komorowski;Nurnaning Aisyah;Noer Cholik;Charley Merciecca
发展了一个新的深度平均模式，用于模拟集中和稀薄火山碎屑流及其相互作用。该模型再现真实事件的能力首次通过2010年印度尼西亚默拉皮火山喷发的两个经过充分研究的喷发阶段进行测试。我们表明，该模型能够非常准确地再现洋流的动力学和沉积物的特征：厚度、范围、体积和轨迹。该模型需要在其他经过充分研究的喷发上进行测试，方程可能会得到改进，但这种新方法对于理解火山碎屑流和更好地预测火山灾害是一个很有前途的工具。
A new depth‐averaged model has been developed for the simulation of both concentrated and dilute pyroclastic currents and their interactions. The capability of the model to reproduce a real event is tested for the first time with two well‐studied eruptive phases of the 2010 eruption of Merapi volcano (Indonesia). We show that the model is able to reproduce quite accurately the dynamics of the currents and the characteristics of the deposits: thickness, extent, volume, and trajectory. The model needs to be tested on other well‐studied eruptions and the equations could be refined, but this new approach is a promising tool for the understanding of pyroclastic currents and for a better prediction of volcanic hazards.