Volcanic crisis management supported by near real-time lava flow hazard assessment at Piton de la Fournaise, La Réunion

IF 2.5 Q2 Earth and Planetary Sciences
M. O. Chevrel, A. Harris, A. Peltier, N. Villeneuve, D. Coppola, M. Gouhier, Stéphane Drenne
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引用次数: 6

Abstract

Since 1979, Piton de la Fournaise (La Réunion) has erupted on average two times per year, with 95 % of these eruptions occurring within an uninhabited caldera. However, lava flows have occasionally impacted populated regions on the island, as in 1977 and 1986. Since 2014, an integrated satellite data–driven multinational response to effusive crises has been developed to rapidly assess lava inundation area and flow runout distance. In 2018, this protocol was implemented as a standalone software to provide a lava flow hazard map showing the probability of flow coverage and runouts as a function of discharge rate. Since 2019, the produced short-term hazard map is shared with local civil protection in the first few hours following the start of an eruption to aid in mitigation actions. Multiple exchanges between scientists, the observatory, and civil protection has improved the delivered hazard map, ensuring a common understanding, a product which is of use and usable, and helping to build effective mitigation strategies at Piton de la Fournaise. In this work we illustrate this effective near real-time protocol with case studies and document how the produced short-term hazard map has been tailored to meet the needs of civil protection.
拉留尼汪Piton de la Fournaise火山危机管理由近实时熔岩流危险评估支持
自1979年以来,福奈斯火山(la Réunion)平均每年喷发两次,其中95%的喷发发生在无人居住的破火山口内。然而,熔岩流偶尔会影响岛上的人口稠密地区,如1977年和1986年。自2014年以来,开发了一种由卫星数据驱动的多国综合应对措施,以快速评估熔岩淹没面积和径流距离。2018年,该协议作为一个独立的软件实现,以提供熔岩流危害图,显示流量覆盖和径流的概率作为流量的函数。自2019年以来,制作的短期危险地图在火山爆发后的最初几个小时内与当地民事保护部门共享,以帮助采取缓解行动。科学家、天文台和民防部门之间的多次交流改进了提供的危险地图,确保了共识,确保了产品的使用和可用性,并有助于在Piton de la Fournaise制定有效的缓解策略。在这项工作中,我们通过案例研究说明了这一有效的近实时协议,并记录了如何定制生成的短期危险地图以满足民事保护的需求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Volcanica
Volcanica Earth and Planetary Sciences-Geology
CiteScore
4.40
自引率
0.00%
发文量
21
审稿时长
21 weeks
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