@InProceedings{BreunigBour:2017:AnCoPa,
               author = "Breunig, Fabio Marcelo and Bourscheidt, Vandoir",
                title = "An{\'a}lise comparativa dos padr{\~o}es de reflect{\^a}ncia 
                         bidirecional em fun{\c{c}}{\~a}o da hora de 
                         aquisi{\c{c}}{\~a}o das imagens",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "1447--1454",
         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 = "Wide field of view sensors allows to adequately timely monitoring 
                         forest and agricultural areas, and increase the probability to 
                         cloud free scenes. Thus, we are committed to evaluate the 
                         differences of bidirectional surface reflectance as a function of 
                         the acquisition hours. For that, we defined a study area 
                         comprising the Misiones region (Argentina) and the Parque Estadual 
                         do Turvo (Brazil). We used daily data from Moderate-Resolution 
                         Imaging Spectroradiometer (MODIS) aboard Terra and Aqua satellites 
                         (MOD09GA e MYD09GA). The MODIS products were processed using the 
                         Google Earth Engine. The original data were filtered to mask low 
                         quality and cloudy pixels throughout the period of 2000-2016. To 
                         evaluate the acquisition hour effect, only data acquired at nadir 
                         (±5° in the forward scattering and backscattering directions) were 
                         used. For each pixel, we calculated the series average for each 
                         MODIS band and derived the vegetation indices: NDVI and EVI. The 
                         results demonstrated that red band did not present clear 
                         differences between Terra and Aqua MODIS sensors reflectance. 
                         Conversely, the near infrared allowed monitoring the annual cycle 
                         of the forest and solar zenith variation. By contrasting the near 
                         infrared bands, a positive linear adjustment was obtained for 
                         Terra and Aqua. The red band did not present correlations. 
                         Considering the vegetation indices, the NDVI presented high 
                         dependence on red band. The EVI covariate more with the near 
                         infrared band as expected, and allowed to evaluate the annual 
                         dynamics of the forest.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "59237",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PS4GN7",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PS4GN7",
           targetfile = "59237.pdf",
                 type = "Monitoramento e modelagem ambiental",
        urlaccessdate = "27 abr. 2024"
}