@InProceedings{SilvaJrSilv:2017:UsQABa,
               author = "Silva Junior, Antonio Gon{\c{c}}alves and Silva, Arnaldo de 
                         Queiroz da",
                title = "Uso de QA Bands do Landsat 5 na detec{\c{c}}{\~a}o de 
                         mudan{\c{c}}as da linha de costa na Ba{\'{\i}}a do 
                         Guajar{\'a}, Bel{\'e}m-PA",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "2860--2867",
         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 = "Estuaries are one of the most important and dynamic ecosystems 
                         included in the coastal zones, presenting high environmental 
                         sensitivity. The dynamics of Guajar{\'a} Bay, located in the 
                         Par{\'a} Rivers estuary at northern Brazil, was evaluated by 
                         multitemporal analysis compering Landsat images produced between 
                         1984 and 2008. The multitemporal analysis revealed expressive 
                         changes of the bays morphology, mainly as a result of accretion 
                         and erosion of coastline zones triggered by hydrodynamics 
                         processes combined with anthropic actions. We used an alteration 
                         detection algorithm operated in the software PCI Geomatics 2012, 
                         using Land-water QA Band as input data. This data is part of 
                         Landsat Surface Reflectance High Level Data Products, made 
                         available by USGS in mid-2016. The processing results generated a 
                         trimodal raster that indicates accretion, erosion and 
                         non-alteration areas in the shoreline. Using the identified 
                         alteration pattern for the Guajar{\'a} Bay, the comparative 
                         results indicated that the western margin was intensely eroded, 
                         with removal of 130 hectares of land whereas the eastern margin 
                         was accretioned with 87 hectares of sediments. The use of QA Bands 
                         revealed an operationally economical procedure that allows quick 
                         and gratuitous medium-scale geomorphological analysis of 
                         small-size estuarine settings, providing a better understanding of 
                         coastal zone dynamics during Holocene.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "59706",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSLRCB",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSLRCB",
           targetfile = "59706.pdf",
                 type = "An{\'a}lise de s{\'e}ries temporais de imagens de 
                         sat{\'e}lite",
        urlaccessdate = "27 abr. 2024"
}