DOI: 10.1002/2015GL064820
论文题名: Retrieving 65 years of volcano summit deformation from multitemporal structure from motion: The case of Piton de la Fournaise (La Réunion Island)
作者: Derrien A. ; Villeneuve N. ; Peltier A. ; Beauducel F.
刊名: Geophysical Research Letters
ISSN: 0094-9145
EISSN: 1944-8876
出版年: 2015
卷: 42, 期: 17 起始页码: 6959
结束页码: 6966
语种: 英语
英文关键词: cross correlation
; magma influx rate
; Piton de la Fournaise
; strain
; structure from motion
Scopus关键词: Deformation
; Strain
; Airborne photography
; Cross correlations
; Digital elevation model
; Piton de La Fournaise
; Piton de la Fournaise volcano
; Seaward displacement
; Structure from motion
; Temporal evolution
; Volcanoes
; airborne sensing
; caldera
; deformation
; digital elevation model
; magma
; photogrammetry
; risk assessment
; strain
; three-dimensional modeling
; volcanic eruption
; Mascarene Islands
; Piton de la Fournaise
; Reunion
英文摘要: The structure from motion photogrammetry technique enables use of historical airborne photography to achieve high-resolution 3-D terrain models. We apply this method on Piton de la Fournaise volcano (La Réunion), which allows a unique opportunity to retrieve high-resolution (1.5-0.11 m) digital elevation models and precise deformation maps of the volcano since 1950. Our results provide evidence that the summit volume increased throughout the study period, at a stable rate of 2.2 Mm3/yr between 1950 and 2015, with an acceleration up to 8.0 Mm3/yr prior to the major 2007 eruption that was accompanied by summit caldera collapse. At the same time, summit deformation was asymmetric, with 9.2 ± 2.5 m of eastward seaward displacement and 1.3 ± 2.5 m to the west during 1950-2015. Our results reveal a temporal evolution in the volcano magma influx rate and deformation. Tracking these fluxes and the long-lived preferential eastern motion is crucial to mitigate risks associated to flank destabilization. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943311974&doi=10.1002%2f2015GL064820&partnerID=40&md5=0f174bd0222a11153e7ccb7143cb5c1b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8761
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Observatoire Volcanologique du Piton de la Fournaise, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, CNRS, La Plaine des Cafres, France
Recommended Citation:
Derrien A.,Villeneuve N.,Peltier A.,et al. Retrieving 65 years of volcano summit deformation from multitemporal structure from motion: The case of Piton de la Fournaise (La Réunion Island)[J]. Geophysical Research Letters,2015-01-01,42(17).