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@InProceedings{MuraPGSGCSS:2015:CaStN5,
               author = "Mura, Jos{\'e} Cl{\'a}udio and Paradella, Waldir Renato and 
                         Gama, F{\'a}bio Furlan and Santos, Athos Ribeiro dos and Galo, 
                         Maur{\'{\i}}cio and Camargo, Paulo de Oliveira and Silva, 
                         Arnaldo Queiroz and Silva, Guilherme Gregorio",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {} and {} and {} and {} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Monitoring of surface deformation in open pit mine using DInSAR 
                         Time-Series: a case study in the N5W Iron Mine (Caraj{\'a}s, 
                         Brazil) using TerraSAR-X data",
            booktitle = "Proceedings...",
                 year = "2015",
                pages = "1--18",
         organization = "SPIE Remote Sensing 2014.",
            publisher = "SPIE",
             keywords = "DInSAR time-series, surface deformation, TerraSAR-X, open pit 
                         mine, Amazon Region.",
             abstract = "We present an investigation of surface deformation using 
                         Differential SAR Interferometry (DInSAR) time-series carried out 
                         in an active open pit iron mine, the N5W, located in the 
                         Caraj{\'a}s Mineral Province (Brazilian Amazon region), using 33 
                         TerraSAR-X (TSX-1) scenes. This mine has presented a historical of 
                         instability and surface monitoring measurements over sectors of 
                         the mine (pit walls) have been done based on ground based radar. 
                         Two complementary approaches were used: the standard DInSAR 
                         configuration, as an early warning of the slope instability 
                         conditions, and the DInSAR timeseries analysis. In order to 
                         decrease the topographic phase error a high resolution DEM was 
                         generated based on a stereo GeoEye-1 pair. Despite the fact that a 
                         DinSAR contains atmospheric and topographic phase artifacts and 
                         noise, it was possible to detect deformation in some 
                         interferometric pairs, covering pit benches, road ramps and waste 
                         piles. The timeseries analysis was performed using the 31 
                         interferometric pairs, which were selected based on the highest 
                         mean coherence of a stack of 107 interferograms, presenting less 
                         phase unwrapping errors. The time-series deformation was retrieved 
                         by the Least-Squares (LS) solution using an extension of the 
                         Singular Value Decomposition (SVD), with a set of additional 
                         weighted constrain on the acceleration deformation. The 
                         atmospheric phase artifacts were filtered in the spacetime domain 
                         and the DEM height errors were estimated based on the normal 
                         baseline diversity. The DInSAR time-series investigation showed 
                         good results for monitoring surface displacement in the N5W mine 
                         located in a tropical rainforest environment, providing very 
                         useful information about the ground movement for alarm, planning 
                         and risk assessment.",
  conference-location = "Amsterd{\~a} Cardiff",
      conference-year = "2014",
                label = "lattes: 8878442330474257 3 ParadellaGSGCSS:2015:CaStN5",
             language = "pt",
           targetfile = "1_mura.pdf",
               volume = "9243",
        urlaccessdate = "02 dez. 2020"
}


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