@InProceedings{SartoratoGarc:2017:AnPrÓt,
               author = "Sartorato, Luiza Luz and Garcia, Carlos Eira",
                title = "An{\'a}lise das propriedades {\'o}ticas da pluma do Rio Doce ? 
                         ES antes e ap{\'o}s o rompimento da barragem do Fund{\~a}o 
                         utilizando o sensor MODIS",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "7171--7178",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "The Fund{\~a}o dam collapse, which occurred in November 2015 at 
                         Mariana - MG is identified as the biggest environmental tragedy 
                         registered in Brazil. The mining residues containing high 
                         concentrations of heavy metals and suspended materials arrived in 
                         Rio Doce, and after two weeks reached its mouth in the city of 
                         Regency - ES. The contact of this contaminated plume generated 
                         great concern with regard to the coastal ecosystems and to the 
                         extent of such an impact on living organisms. This study aims to 
                         identify and characterize the rivers plume in the coastal 
                         environment through the optical properties derived from the MODIS 
                         sensor on board Aqua satellite. Ocean color images from five years 
                         prior to the accident and from December 2015 and January 2016 were 
                         analyzed using the SEADAS 7.3.2 software in order to detect 
                         spatial and temporal optical signature of the contaminated plume. 
                         The level 1 images were processed into level 2 using the SWIR NIR 
                         atmospheric correction scheme, and the spectral backscattering and 
                         reflectance products were extracted. In order to track the plum 
                         spatially, we developed an algorithm that performs relatively 
                         well, being able to highlight Rio Doces waters from other rivers 
                         along the coast. We observed the constant presence of the Rio 
                         Doces plume over the years prior and after the dam collapse, with 
                         a strong spectral signature in the green and red bands, but we 
                         also observed an increase of both backscattering and reflectance 
                         in the red bands (645, 667 and 678 nm) after the accident.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "60141",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSMF8R",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSMF8R",
           targetfile = "60141.pdf",
                 type = "Oceanografia e sistemas costeiros",
        urlaccessdate = "27 abr. 2024"
}