DOI: 10.1002/grl.50276
论文题名: Source model of deformation at Lazufre volcanic center, central Andes, constrained by InSAR time series
作者: Pearse J. ; Lundgren P.
刊名: Geophysical Research Letters
ISSN: 0094-9204
EISSN: 1944-8935
出版年: 2013
卷: 40, 期: 6 起始页码: 1059
结束页码: 1064
语种: 英语
英文关键词: central Andes
; InSAR
; Lazufre
; surface deformation
Scopus关键词: Central Andes
; Comprehensive examination
; InSAR
; Interferometric synthetic aperture radars
; Lateral expansion
; Lazufre
; Surface deformation
; Temporal and spatial variation
; Deformation
; Geometry
; Time series
; Volcanoes
; Geodetic satellites
; deformation mechanism
; Envisat-1
; geometry
; numerical model
; satellite data
; satellite imagery
; spatiotemporal analysis
; time series analysis
; uplift
; Andes
英文摘要: Recent interferometric synthetic aperture radar (InSAR) observations of the Lazufre region, central Andes, show large-scale uplift at a rate of about 3 cm/yr, beginning between 1998 and 2002. The initiation of this activity during the ERS satellite mission and its proximity to active volcanoes have made Lazufre the focus of several studies aimed at understanding its source geometry, its relation to nearby volcanoes, and whether or not the source area is expanding. There now exists a longer time series from multiple ERS/ENVISAT satellite tracks that allows a more comprehensive examination of the source geometry and its temporal and spatial variation, if any. We processed 15 years of InSAR data from three separate tracks; modeling the different look geometries provided greater resolution of source depth and geometry. We conclude that the source is a shallowly dipping sill at a depth of about 8 km, with no evidence of lateral expansion. Key Points InSAR observation of the Lazufre volcanic region shows deformation at 3 cm/yr Inflation source is a shallowly dipping sill at 8 km depth No lateral expansion of the source is observed. ©2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876940244&doi=10.1002%2fgrl.50276&partnerID=40&md5=aa94653c1d583efdaa38642dc53382ea
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6468
Appears in Collections: 气候减缓与适应
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作者单位: Jet Propulsion Laboratory, Pasadena, CA, United States
Recommended Citation:
Pearse J.,Lundgren P.. Source model of deformation at Lazufre volcanic center, central Andes, constrained by InSAR time series[J]. Geophysical Research Letters,2013-01-01,40(6).