Combined effects of total grain-size distribution and crosswind on the rise of eruptive volcanic columns
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- 作者：F. Giraulta ; girault@ipgp.fr" class="auth_mail" title="E-mail the corresponding author ; G. Carazzob ; S. Taita ; E. Kaminskia
- 关键词：Plinian eruption ; Volcanic plume ; Atmospheric crosswind ; Turbulent entrainment ; Particle sedimentation ; Eruptive column collapse
- 刊名：Journal of Volcanology and Geothermal Research
- 出版年：2016
- 出版时间：15 October 2016
- 年：2016
- 卷：326
- 期：Complete
- 页码：103-113
- 全文大小：1443 K
文摘
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We detail a model of volcanic plumes that includes wind effect and particle fallout.
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We validate the model against a specially assembled data set of Plinian eruptions.
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We show that the atmospheric wind profile strongly affects the rise of the column.
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Predictions of eruptive mass flux from plume height are significantly improved.