| DOI: | 10.1002/2015GL063872
|
| 论文题名: | Revised interpretation of recent InSAR signals observed at Llaima volcano (Chile) |
| 作者: | Remy D.; Chen Y.; Froger J.L.; Bonvalot S.; Cordoba L.; Fustos J.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-9369
|
| EISSN: | 1944-9100
|
| 出版年: | 2015
|
| 卷: | 42, 期:10 | | 起始页码: | 3870
|
| 结束页码: | 3879
|
| 语种: | 英语
|
| 英文关键词: | atmospheric artifacts
; InSAR
; volcano ground deformation
|
| Scopus关键词: | Deformation
; Image reconstruction
; Infrared devices
; Interferometry
; Radar
; Radiometers
; Spectrometers
; Troposphere
; Volcanoes
; Water vapor
; Atmospheric artifacts
; Ground deformations
; InSAR
; Interferometric synthetic aperture radars
; Medium resolution imaging spectrometers
; Moderate resolution imaging spectroradiometer
; Specific environmental conditions
; Water vapor variations
; Synthetic aperture radar
; artifact
; data acquisition
; displacement
; MODIS
; radar interferometry
; satellite data
; signal
; spatiotemporal analysis
; synthetic aperture radar
; water vapor
; Araucania
; Llaima
; Southern Volcanic Zone
|
| 英文摘要: | We analyzed C band and L band interferometric synthetic aperture radar (InSAR) data acquired from 2003 to 2011 to search for volcanic deformations at Llaima volcano, Southern Andes (38.69°S, 71.73°W). There, specific environmental conditions (steep slopes, snow- or ice-capped summit, dense vegetation cover, and strong tropospheric artifacts) and limited amount of radar data available make it challenging to accurately measure ground surface displacement with InSAR. To overcome these difficulties, we first performed a careful analysis of the water vapor variations using Medium-Resolution Imaging Spectrometer and Moderate Resolution Imaging Spectroradiometer near-infrared water vapor products and then we inverted wrapped interferograms for both topographic correlated phase delays and a simple model source strength. In the light of our results, we conclude that there is no detectable ground displacement related to a deep magmatic source for the 2003-2011 period and that most of the fringes observed in the interferograms were produced by tropospheric delays. ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931560923&doi=10.1002%2f2015GL063872&partnerID=40&md5=5bbb89ed5134e42fda383b6f1ca30f15
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8984
|
| Appears in Collections: | 科学计划与规划
气候变化与战略
|
|
There are no files associated with this item.
|
|
作者单位: | GET/UMR5563 (UPS, CNRS, IRD, CNES), Observatoire Midi-Pyrénées, Université P. Sabatier, Toulouse, France
|
| Recommended Citation: | |
Remy D.,Chen Y.,Froger J.L.,et al. Revised interpretation of recent InSAR signals observed at Llaima volcano (Chile)[J]. Geophysical Research Letters,2015-01-01,42(10).
|
|
|