@InProceedings{GuerraCecaLomo:2011:AnViUs,
               author = "Guerra, J{\'u}lio Bandeira and Cecarelli, Izabel Cristina 
                         Franchitto and Lomonaco, Braz Ferrari",
          affiliation = "{Geoambiente Sensoriamento Remoto Ltda - GEOAMBIENTE} and 
                         {Geoambiente Sensoriamento Remoto Ltda - GEOAMBIENTE} and 
                         {Cons{\'o}rcio Empresarial Salto Pil{\~a}o – CESAP}",
                title = "An{\'a}lise da viabilidade do uso das t{\'e}cnicas DInSAR e 
                         PSInSAR com dados TerraSAR X para monitorar movimentos da 
                         superf{\'{\i}}cie na regi{\~a}o da UHE Salto Pil{\~a}o-SC",
            booktitle = "Anais...",
                 year = "2011",
               editor = "Epiphanio, Jos{\'e} Carlos Neves and Galv{\~a}o, L{\^e}nio 
                         Soares",
                pages = "8199--8206",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 15. (SBSR).",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "Differential Interferometry (DinSAR), Persistent Scatterers 
                         Interferometry (PSinSAR), surface motion, Interferometria 
                         Diferencial (DinSAR), Interferometria por Espalhadores Permanentes 
                         (PSInSAR), movimento da superf{\'{\i}}cie.",
             abstract = "Differential Interferometry (DInSAR) and Persistent Scatterer 
                         Interferometry (PSInSAR) techniques are being used to monitor 
                         natural or anthropogenic surface displacements related to 
                         tectocnic faults, vulcanoes, glaciers, water reservoirs, mining 
                         activities and man-made structures, like tunnels. However, DinSAR 
                         has some limitations due to temporal decorrelation, mainly in 
                         forested or even rural areas, geometric decorrelation, due to 
                         large baselines, and atmospheric effects. Also, PSInSAR has 
                         restrictions in some vegetated areas due to low density of 
                         Persistent Scatterers points. In this context, the main objective 
                         of this work was to study the feasibility of using DinSAR and 
                         PSinSAR with a data stack of ten ascending TerraSAR X StripMap 
                         images to monitor surface motion in the Salto Pil{\~a}o 
                         Hydroeletric Plant area, in Santa Catarina state. In order to 
                         achieve this purpose, coherence data was generated for the first 
                         11-day interval and 33-day interval, as well as the maximum 
                         available interval, to evaluate DinSAR. To evaluate PSinSAR, 
                         Persistent Scatterers were detected with the entire TerraSAR X 
                         data set and them density was estimated. The analysis of 
                         coherence, as a base for performing a Differential Interferometric 
                         (DInSAR) approach, yielded insufficient results. Strong vegetation 
                         in the area causes temporal decorrelation and thus a strong loss 
                         of coherence. Thus, the application of DInSAR could not be 
                         feasible. The point density in the area of interest was estimated 
                         to 85 points per km˛. This density would be sufficient for a 
                         PSInSAR analysis to give reasonable results. As such, PSI analysis 
                         along the tunnel axis can therefore be feasible.",
  conference-location = "Curitiba",
      conference-year = "30 abr. - 5 maio 2011",
                 isbn = "{978-85-17-00056-0 (Internet)} and {978-85-17-00057-7 (DVD)}",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "3ERPFQRTRW/39UGN68",
                  url = "http://urlib.net/ibi/3ERPFQRTRW/39UGN68",
           targetfile = "p1544.pdf",
                 type = "SAR: Processamento e Aplica{\c{c}}{\~o}es",
        urlaccessdate = "05 maio 2024"
}