Three years of mining subsidence monitored by SAR interferometry, near Gardanne, France
Three years of mining subsidence monitored by SAR interferometry, near Gardanne, France
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DOI：
10.1016/s0926-9851(99)00032-4
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发表时间：
2000-01-01
影响因子：
2
通讯作者：
Delacourt, C
中科院分区：
文献类型：
--
作者：
Carnec, C;Delacourt, C
来自重复通过星载合成孔径雷达系统的差分干涉图图像提供了绘制小空间范围的表面变形和监测其时空演变的可能性。1992年至1995年期间，欧洲ERS-1/ERS-2卫星获得的图像显示，在法国Gardanne附近观测到了地下采煤造成的缓慢的局部下沉现象。干涉监测揭示了采煤工作面推进引起的下沉晕迁移。与野外水准测量资料比较表明，有效地面沉降量相近。对观测到的运动的分析和解释考虑到了沉积盆地的结构特征、该地区的微地震活动和地下湿矿的几何形状。这种在正常观测条件下和不同时期的SAR干涉测量应用，不仅为研究目的，而且为工业应用开辟了广阔的应用前景。(C)2000 Elsevier Science B. V.保留所有权利。
Differential interferogram images derived from repeat-pass spaceborne Synthetic Aperture Radar (SAR) systems give the possibility to map surface deformations of small spatial extent and to monitor their spatio-temporal evolution. A slow and local phenomenon of subsidence caused by underground coal mining has been observed near Gardanne, France, from images acquired by both European ERS-1/ERS-2 satellites between 1992 and 1995. Interferometric monitoring revealed the migration of the subsidence halo caused by the advance of the coal working face. Comparison with field leveling data has shown that the amount of effective land subsidence is similar. The analysis and interpretation of the observed movements take into account the structural characteristics of the sedimentary basin, the micro-seismic activity of the region and the geometry of the underground wet-kings. Such an application of SAR interferometry, under normal conditions of observation and at different periods, opens up wide application prospects, not only for research goal, but also for industrial use. (C) 2000 Elsevier Science B.V. All rights reserved.