基于ALOS数据的济宁矿区地表沉降监测与分析

Deformation Monitoring and Analysis of the Land Subsidence in Jining Coal Area Based on ALOS InSAR Data

合成孔径雷达差分干涉测量(D-InSAR)技术以其精度高、连续监测、成本低等特点在地表沉降监测方面被广泛应用。以济宁矿区为例,选择2008-01-08、2008-02-23和2008-04-09三景ALOS PALSAR影像组成3个差分干涉对,得到矿区在LOS方向地面形变图,并使用Arc GIS软件对其中的葛亭煤矿进行精细化分析,生成矿区的等值线图和剖面图。实验表明:D-In SAR技术能够比较准确且有效地监测矿区地表形变,为地表监测提供可靠方法。

The D-InSAR technique has obtained widespread application for the land deformation monitoring because of its accuracy,continuous monitoring and with low costs. In the paper, using three InSAR pairs obtained the mine surface subsidence of LOS throughthe D-InSAR technique. The pairs were composed of ALOS PALSAR images of 2008-01-08, 2008-02-23 and 2008-04-09. Thesubsidence in Getting coal mine was analyzed in detail by ArcGIS software. The contour map and section plan of mining subsidencewere generated. The results show that D-InSAR technique can accurately and effectively monitor the surface deformation of mining areaand provide a reliable method for ground surface monitoring.