The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XL-7/W4
https://doi.org/10.5194/isprsarchives-XL-7-W4-41-2015
https://doi.org/10.5194/isprsarchives-XL-7-W4-41-2015
26 Jun 2015
 | 26 Jun 2015

Application of Surface Deformation Monitoring in Mining Area by the Fusion of InSAR and Laser Scan Data

J. L. Huang, K. Z. Deng, H. D. Fan, and J. K. Yang

Keywords: D-InSAR, laser scan data, SRTM, GDEM, deformation, data fusion

Abstract. Differential Synthetic Aperture Radar Interferometry (D-InSAR) as a new earth observation technique has become an important tool for monitoring ground movements caused by underground coal mining. However, the low resolution and accuracy of Digital Elevation Model (DEM) cause more error value of InSAR line-of-sight(LOS) surface deformation measurement. In this paper, a couple of Radarsat-2 and a pair of TerraSAR with SRTM, GDEM and LiDAR DEM are processed respectively to reveal the subsidence basin and the results have been compared each other. It illustrate that the accuracy of D-InSAR results been better improved by the high accuracy and resolution DEM.