DOI: 10.1002/2015GL063858
论文题名: Deep source model for Nevado del Ruiz Volcano, Colombia, constrained by interferometric synthetic aperture radar observations
作者: Lundgren P. ; Samsonov S.V. ; Lõpez Velez C.M. ; Ordoñez M.
刊名: Geophysical Research Letters
ISSN: 0094-8675
EISSN: 1944-8406
出版年: 2015
卷: 42, 期: 12 起始页码: 4816
结束页码: 4823
语种: 英语
英文关键词: InSAR
; Nevado del Ruiz Volcano
; volcano deformation
Scopus关键词: Deformation
; Interferometry
; Radar
; Source separation
; Volcanoes
; Deep sources
; Deformation pattern
; InSAR
; Interferometric synthetic aperture radars
; Radarsat-2
; Source models
; Stress changes
; Track data
; Synthetic aperture radar
; compression
; deformation mechanism
; dike
; interferometry
; RADARSAT
; satellite data
; sill
; spatiotemporal analysis
; stress field
; synthetic aperture radar
; Andes
; Colombia
; Colombia
; Nevado del Ruiz
; Tolima
英文摘要: Nevado del Ruiz is part of a large volcano complex in the northern Andes of Colombia. Interferometric synthetic aperture radar observations from the RADARSAT-2 satellite since 2011 show steady inflation of the volcano since 2012 at 3-4 cm/yr. The broad (>20 km) deformation pattern from both ascending and descending track data constrain source models for either point or spheroidal sources, both located at >14 km beneath the surface (mean elevation 4.2 km) and 10 km SW of Nevado del Ruiz, below nearby Santa Isabel Volcano. Stress change computations for both sources in the context of a compressive regional stress indicate that dikes propagating from the source should become trapped in sills, possibly leading to a more complex pathway to the surface and explaining the significant lateral separation of the source and Nevado del Ruiz Volcano. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948710758&doi=10.1002%2f2015GL063858&partnerID=40&md5=0fbc58a9af4637eadc23f24558f3a3f3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8291
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: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States
Recommended Citation:
Lundgren P.,Samsonov S.V.,Lõpez Velez C.M.,et al. Deep source model for Nevado del Ruiz Volcano, Colombia, constrained by interferometric synthetic aperture radar observations[J]. Geophysical Research Letters,2015-01-01,42(12).