The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLI-B7
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B7, 763–767, 2016
https://doi.org/10.5194/isprs-archives-XLI-B7-763-2016
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLI-B7, 763–767, 2016
https://doi.org/10.5194/isprs-archives-XLI-B7-763-2016

  21 Jun 2016

21 Jun 2016

SENTINEL-1 INSAR PROCESSING OF CORNER REFLECTOR INFORMATION IN THE NORTHERN-BOHEMIAN COAL BASIN

I. Hlaváčová1, L. Halounová1, and P. Stanislav2 I. Hlaváčová et al.
  • 1Czech Technical University, Faculty of Civil Engineering, Department of Geomatics, Prague, Czech Republic
  • 2Severní, energetická, a.s., Most, Czech Republic

Keywords: Sentinel-1, corner reflector, InSAR, mining area, subsidence, landslides

Abstract. The mining area previously monitored by TerraSAR-X InSAR is now monitored by Sentinel-1 InSAR. Although the processing of the IWS (TOPS) mode requires additional processing steps and the coregistration has to be performed with the precision of 0.001 pixel (in the azimuth direction), if an area within one burst is processed, such a precise coregistration is not necessary. Information from 11 corner reflectors is evaluated, and significant movements at one of them were detected. Although it seems to be uplift, it is more probable that the movement is in down-the-slope direction, which has a negative sensitivity with regard to the satellite line of sight. The movement is similar to the one detected by TerraSAR-X satellite in the past. At the end of the monitoring period, the movement seems to settle down; future monitoring will show more about the dynamicity of the movement.