Application of the coherent pixels technique to the generation of deformation maps with ERS and ENVISAT data

A ground subsidence study based on DInSAR data: Calibration of soil parameters and subsidence prediction in Murcia City (Spain)

“…First, the combined use of images from different sensors (ERS and ENVISAT) is possible through the computation of different subsets of interferograms generated among images of the same sensor (without crossed interferograms) and by linking the deformation results under a singular value decomposition approach, as explained in Blanco et al (2005Blanco et al ( , 2008. Second, the absence of valid images during some periods (e.g.…”

A deep seated compound rotational rock slide and rock spread in SE Spain: Structural control and DInSAR monitoring

“…The external Digital Elevation Model (DEM) used to cancel out the topographic component of the interferometric phase has a resolution of 25 × 25 m and belongs to the cartographic numeric database E20 from IGN (National Cartographical Service of Spain). Pixels with available information of ground deformation were selected using a coherence criterion as detailed in Blanco et al (2006Blanco et al ( , 2008. Coherence computation implies a spatial averaging of the interferograms, also known as multi-looking, which degrades the original resolution of the SAR images.…”

“…-ers2 19970707 ers2 20021014 ers2 20060501 ers2 19970811 ers2 20021118 ers2 20060710 env-ers2 19971229 ers2 20021223 ers2 20060814 ers2 19980309 ers2 20030127 ers2 20060918 ers2 19980518 ers2 20030512 ers2 20061023 ers2 19980727 ers2 20030721 ers2 20061127 ers2 19980831 ers2 20030825 env 20070101 env 19981005 ers2 20031103 ers2 20070205 ers2 19981214 ers2 20040112 env-ers2 20070312 ers2 19990503 ers2 20040322 env 20070416 ers2 19990712 ers2 20040426 env 20070521 ers2 19990920 ers2 20040531 env 20070625 ers2 19991129 ers2 20040705 ers2 20071112 ers2 20000103 ers2 20040809 ers2 20071217 ers2 20000313 ers2 20040913 env-ers2 20080331 env 20000417 ers2 20041018 env 20080505 ers2 20000522 ers2 20050131 env-ers2 20080609 ers2 20000626 ers2 20050411 env 20080714 ers2 20000904 ers2 20050516 env-ers2 20080818 ers2 20001113 ers2 20050829 env 20081027 env 20001218 ers2 20051107 env 20010716 ers2 20060116 ers2 Two aspects need additional comments. First, the combined use of images from different sensors (ERS and ENVISAT) is possible through the computation of different subsets of interferograms generated between images from the same sensor (without crossed interferograms) and by linking the deformation results under a singular value decomposition approach (Blanco et al, 2006(Blanco et al, , 2008. Second, the absence of valid images during some periods (e.g.…”

Application of the Coherent Pixels Technique (CPT) to urban monitoring

“…CPT's selection criteria will be described in Section III. CPT [1] [2] is able to retrieve the linear and nonlinear components of deformation from a set of interferograms, estimating at the same time the DEM error and the atmospheric artifacts. Explanation of how these components are obtained is presented in Section IV.…”