气候变化领域集成服务门户(CCPortal): Comparison of real and simulated lava flows in the Holocene volcanism of Gran Canaria (Canary Islands, Spain) with Q-LavHA: contribution to volcanic hazard management

CCPortal

DOI	10.1007/s11069-021-04660-6
	Comparison of real and simulated lava flows in the Holocene volcanism of Gran Canaria (Canary Islands, Spain) with Q-LavHA: contribution to volcanic hazard management
	Rodriguez-Gonzalez A.; Aulinas M.; Mossoux S.; Perez-Torrado F.J.; Fernandez-Turiel J.L.; Cabrera M.; Prieto-Torrell C.
发表日期	2021
ISSN	0921030X
起始页码	1785
结束页码	1819
卷号	107 期号:2
英文摘要	Lava flow simulations are valuable tools for forecasting and assessing the areas potentially affected by new eruptions, interpreting past volcanic events and understanding the lava flow behaviour's controls. Q-LavHA (v 2.0) plug-in of Mossoux et al. (Mossoux et al., Comput Geosci 97:98–109, 2016) combines and improves existing deterministic (FLOWGO) and probabilistic ("Maximum Length" and "Decreasing Probability") codes which allow calculating the probability of lava flow spatial propagation and terminal length. We investigate the Q-LavHA algorithm's effectiveness in twenty Holocene ʻaʻā lava flows of Gran Canaria (Canary Islands). Pre-eruptive and updated digital elevation models (DEMs) (25 m of resolution) and associated topographic and morphometric parameters have been used as essential input data to simulate the lava flows. Besides, thermo-rheological properties of the studied Holocene lavas have also been provided in the deterministic approach. The probabilistic lava flow maps produced by Q-LavHA and the fitness indexes calculated for assessing the simulated lava flow' accuracy indicate that the probabilistic "Maximum Length" constraint provides the best simulations. By using this method, many of the simulations in Gran Canaria almost overlap the real lava flow entirely even if overestimated areas are, in some cases, relatively high. By contrast, underestimated areas are generally low. The best results are those in which the highest inundation probability is observed within the main channel where the actual lava flow is emplaced, and even if overestimated areas are high, they are associated with low pixel inundation. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Gran Canaria Holocene Lava flow Q-LavHA Simulation
英文关键词	algorithm; computer simulation; hazard assessment; hazard management; Holocene; lava flow; probability; software; volcanic eruption; volcanism; Canary Islands; Gran Canaria; Las Palmas; Spain; Serinus canaria
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206525
作者单位	Instituto de Estudios Ambientales y Recursos Naturales (i–UNAT), Universidad de Las Palmas de Gran Canaria (ULPGC), Las Palmas de Gran Canaria, Spain; Departament de Mineralogia, Petrologia i Geologia Aplicada, Facultat de Ciències de la Terra, Universitat de Barcelona (UB), Barcelona, Spain; Physical Geography and Cartography and GIS Research Group, Department of Geography, Earth System Science, Vrije Universiteit Brussel, Brussel, Belgium; Geosciences Barcelona, GEO3BCN, CSIC, Barcelona, Spain
推荐引用方式 GB/T 7714	Rodriguez-Gonzalez A.,Aulinas M.,Mossoux S.,et al. Comparison of real and simulated lava flows in the Holocene volcanism of Gran Canaria (Canary Islands, Spain) with Q-LavHA: contribution to volcanic hazard management[J],2021,107(2).
APA	Rodriguez-Gonzalez A..,Aulinas M..,Mossoux S..,Perez-Torrado F.J..,Fernandez-Turiel J.L..,...&Prieto-Torrell C..(2021).Comparison of real and simulated lava flows in the Holocene volcanism of Gran Canaria (Canary Islands, Spain) with Q-LavHA: contribution to volcanic hazard management.Natural Hazards,107(2).
MLA	Rodriguez-Gonzalez A.,et al."Comparison of real and simulated lava flows in the Holocene volcanism of Gran Canaria (Canary Islands, Spain) with Q-LavHA: contribution to volcanic hazard management".Natural Hazards 107.2(2021).