The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XXXIX-B1
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXIX-B1, 27–31, 2012
https://doi.org/10.5194/isprsarchives-XXXIX-B1-27-2012
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XXXIX-B1, 27–31, 2012
https://doi.org/10.5194/isprsarchives-XXXIX-B1-27-2012

  20 Jul 2012

20 Jul 2012

SYNTHETIC APERTURE RADAR INTERFEROMETRY FOR DIGITAL ELEVATION MODEL OF KUWAIT DESERT – ANALYSIS OF ERRORS

H. K. Al Jassar1 and K. S. Rao2 H. K. Al Jassar and K. S. Rao
  • 1Physics Department, Kuwait University, Kuwait
  • 2Physics Department, Kuwait University, Kuwait

Keywords: Digital Elevation Model, SAR interferometry, errors, weighted average, ASAR, atmospheric corrections

Abstract. Using different combinations of 29 Advanced Synthetic Aperture Radar (ASAR) images, 43 Digital Elevations Models (DEM) were generated adopting SAR Interferometry (InSAR) technique. Due to sand movement in desert terrain, there is a poor phase correlation between different SAR images. Therefore, suitable methodology for generating DEMs of Kuwait desert terrain using InSAR technique were worked out. Time series analysis was adopted to derive the best DEM out of 43 DEMs. The problems related to phase de-correlation over desert terrain are discussed. Various errors associated with the DEM generation are discussed which include atmospheric effects, penetration into soil medium, sand movement. The DEM of Shuttle Radar Topography Mission (SRTM) is used as a reference. The noise levels of DEM of SRTM are presented.