DOI: 10.1016/j.jag.2012.12.008
Scopus记录号: 2-s2.0-84880267803
论文题名: Ground deformation associated with post-mining activity at the French-German border revealed by novel InSAR time series method
作者: Samsonov S ; , d'Oreye N ; , Smets B
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2013
卷: 23, 期: 1 起始页码: 142
结束页码: 154
语种: 英语
英文关键词: Deformation
; Greater Region of Luxembourg
; Ground deformation
; Ground subsidence
; InSAR
; Lorraine
; Mining and post-mining ground
; Saarland
; SBAS
; Synthetic Aperture Radar Interferometry
; Time series analysis
Scopus关键词: border region
; deformation
; Envisat-1
; image resolution
; mining
; radar interferometry
; satellite data
; subsidence
; synthetic aperture radar
; temporal variation
; time series analysis
; France
; Germany
; Lorraine
英文摘要: We present a novel methodology for integration of multiple InSAR data sets for computation of two dimensional time series of ground deformation. The proposed approach allowscombination of SAR data acquired with different acquisition parameters, temporal and spatial sampling and resolution, wavelength and polarization. Produced time series have combined coverage, improved temporal resolution and lower noise level. We apply this methodology for mapping coal mining related ground subsidence and uplift in the Greater Region of Luxembourg along the French-German border. For this we processed 167 Synthetic Aperture Radar ERS-1/2 and ENVISAT images acquired between 1995 and 2009 from one ascending (track 29) and one descending (track 337) tracks and created over five hundred interferograms that were used for time series analysis. Derived vertical and east-west linear deformation rates show with remarkable precision a region of localized ground deformation located above and caused by mining and post-mining activities. Time series of ground deformation display temporal variability: reversal from subsidence to uplift and acceleration of subsidence in the vertical component, and horizontal motion toward the center of the subsidence on the east-west component. InSAR results are validated by leveling measurements collected by the French Geological Survey (BRGM) during 2006-2008. We determined that deformationrate changes are mainly caused by water level variations in the mines. Due to higher temporal and spatial resolution the proposed space-borne method detected a larger number of subsidence and uplift areas in comparison to leveling measurements restricted to annual monitoring of benchmark points along roads. We also identified one deformation region that is not precisely located above the mining sites. Comparison of InSAR measurements with the water levels measured in the mining pits suggest that part of the water that filled thegalleries after termination of the dewatering systems may come from this region. Providing that enough SAR data is available, this method opens new opportunities for detecting and locating man-made and natural ground deformation signals with high temporal resolution and precision. © 2012 Published by Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79823
Appears in Collections: 气候变化事实与影响
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作者单位: Natural Resources Canada, 588 Booth Street, Ottawa, ON K1A0Y7, Canada; European Center for Geodynamics and Seismology, Rue Josy Welter 19, L-7256 Walferdange, Luxembourg; National Museum of Natural History, Department of Geophysics/Astrophysics, Rue Josy Welter 19, L-7256 Walferdange, Luxembourg
Recommended Citation:
Samsonov S,, d'Oreye N,, Smets B. Ground deformation associated with post-mining activity at the French-German border revealed by novel InSAR time series method[J]. International Journal of Applied Earth Observation and Geoinformation,2013-01-01,23(1)