@Article{GamaCantMura:2022:MoHoVe,
               author = "Gama, F{\'a}bio Furlan and Cantone, Alessio and Mura, Jos{\'e} 
                         Cl{\'a}udio",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Sarmap 
                         S.A} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Monitoring horizontal and vertical components of Samarco mine 
                         dikes deformations by DInSAR-SBAS using TerraSAR-X and Sentinel-1 
                         data",
              journal = "Mining",
                 year = "2022",
               volume = "2",
               number = "4",
                pages = "725--745",
             keywords = "A-DinSAR, SBAS, Dikes, tailings dam, Sentinel-1.",
             abstract = "This article presents an investigation of ground movement 
                         measurements based on a combination of TerraSAR-X and Sentinel-1 
                         data, in opposite tracks, aiming to detect ground deformation of 
                         the remaining dikes of Germano mine, after the Fund{\~a}o dam 
                         collapse. The differential interferometry technique SBAS (Small 
                         Baseline Subset) was applied to obtain the deformation of the 
                         surface in different Line of Sight (LoS), in order to carry out 
                         the vector decomposition and generate the deformation measurements 
                         in the vertical and horizontal directions. A set of 37 single-look 
                         complex (SLC) images of TerraSAR-X (TSX), acquired during the 
                         period from 19 February 2016 to 15 May 2017, and 37 SLC images of 
                         Sentinel-1, acquired from 8 February 2016 to 15 May 2017, were 
                         used to perform this investigation. For the TerraSAR-X 
                         interferometric processing, a coherence threshold of 40%, 4 looks 
                         in range and 2 looks in azimuth, 1200 m of atmospheric filter, and 
                         10 % of max normal baseline of the critical were used. For the 
                         Sentinel-1 interferometric processing a coherence threshold of 
                         26%, 8 looks in range and 2 looks in azimuth, 1200 m of 
                         atmospheric filter, and 20% of the of max normal baseline of the 
                         critical were used. For both sensors a digital elevation model 
                         generated by Pleiades 1-A was used for removing the topographic 
                         phase component. The final results were consistent with the 
                         topographic in situ measurements, providing key information to 
                         make crucial decisions regarding risks, or even mitigation, 
                         repairs or emergency response, as well as for a better 
                         understanding of the on-going instability phenomena affecting the 
                         dikes and dams.",
                  doi = "10.3390/mining2040040",
                  url = "http://dx.doi.org/10.3390/mining2040040",
                 issn = "2673-6489",
                label = "lattes: 8878442330474257 1 GamaCant:2022:MoHoVe",
             language = "en",
           targetfile = "mining-02-00040-v2.pdf",
                  url = "https://www.mdpi.com/2673-6489/2/4/40",
        urlaccessdate = "09 maio 2024"
}