DOI: 10.1002/2014GL061307
论文题名: Removal of systematic seasonal atmospheric signal from interferometric synthetic aperture radar ground deformation time series
作者: Samsonov S.V. ; Trishchenko A.P. ; Tiampo K. ; González P.J. ; Zhang Y. ; Fernández J.
刊名: Geophysical Research Letters
ISSN: 0094-9828
EISSN: 1944-9559
出版年: 2014
卷: 41, 期: 17 起始页码: 6123
结束页码: 6130
语种: 英语
Scopus关键词: Algorithms
; Atmospheric pressure
; Coastal zones
; Deformation
; Interferometry
; Time series
; Geodetic technique
; Ground deformations
; Interferometric synthetic aperture radars
; Long-term deformation
; Lower troposphere
; Seasonal fluctuations
; Small baseline subsets
; Vertical displacements
; Synthetic aperture radar
; amplitude
; atmospheric correction
; atmospheric pressure
; deformation
; Envisat-1
; RADARSAT
; radiosonde
; signal
; synthetic aperture radar
; time series analysis
; troposphere
; water vapor
; Campania [Italy]
; Campi Flegrei
; Italy
; Napoli [Campania]
英文摘要: Applying the Multidimensional Small Baseline Subset interferometric synthetic aperture radar algorithm to about 1500 Envisat and RADARSAT-2 interferograms spanning 2003-2013, we computed time series of ground deformation over Naples Bay Area in Italy. Two active volcanoes, Vesuvius and Campi Flegrei, are located in this area in close proximity to the densely populated city of Naples. For the first time, and with remarkable clarity, we observed decade-Long elevation-Dependent seasonal oscillations of the vertical displacement component with a peak-To-Peak amplitude of up to 3.0 cm, substantially larger than the long-Term deformation rate (<0.6 cm/yr). Analysis, utilizing surface weather and radiosonde data, linked observed oscillations with seasonal fluctuations of water vapor, air pressure, and temperature in the lower troposphere. The modeled correction is in a good agreement with observed results. The mean, absolute, and RMS differences are 0.014 cm, 0.073 cm, and 0.087 cm, respectively. Atmospherically corrected time series confirmed continuing subsidence at Vesuvius previously observed by geodetic techniques. © 2014. Her Majesty the Queen in Right of Canada. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84907933334&doi=10.1002%2f2014GL061307&partnerID=40&md5=3526425b6c2ad72127b200e60d9946af
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7092
Appears in Collections: 气候减缓与适应
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作者单位: Canada Centre for Mapping and Earth Observation, Natural Resources Canada, Ottawa, ON, Canada
Recommended Citation:
Samsonov S.V.,Trishchenko A.P.,Tiampo K.,et al. Removal of systematic seasonal atmospheric signal from interferometric synthetic aperture radar ground deformation time series[J]. Geophysical Research Letters,2014-01-01,41(17).