@Article{CremonRossZani:2014:ClVeOv,
               author = "Cremon, {\'E}dipo Henrique and Rossetti, Dilce de F{\'a}tima and 
                         Zani, Hiran",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Classification of Vegetation over a Residual Megafan Landform in 
                         the Amazonian Lowland Based on Optical and SAR Imagery",
              journal = "Remote Sensing",
                 year = "2014",
               volume = "6",
               number = "11",
                pages = "10931--10946",
             keywords = "open vegetation patches, Amaz{\^o}nia, megafan, optical and SAR 
                         integration, decision tree.",
             abstract = "The origin of large areas dominated by pristine open vegetation 
                         that is in sharp contrast with surrounding dense forest within the 
                         Amazonian lowland has generally been related to past arid 
                         climates, but this is still an issue open for debate. In this 
                         paper, we characterize a large open vegetation patch over a 
                         residual megafan located in the northern Amazonia. The main goal 
                         was to investigate the relationship between this paleolandform and 
                         vegetation classes mapped based on the integration of optical and 
                         SAR data using the decision tree. Our remote sensing dataset 
                         includes PALSAR and TM/Landsat images. Five classes were 
                         identified: rainforest; flooded forest; wooded open vegetation; 
                         grassy-shrubby open vegetation; and water body. The output map 
                         resulting from the integration of PALSAR and TM/Landsat images 
                         showed an overall accuracy of 94%. Narrow, elongated and sinuous 
                         belts of forest within the open vegetation areas progressively 
                         bifurcate into others revealing paleochannels arranged into 
                         distributary pattern. Such characteristics, integrated with 
                         pre-existing geological information, led us to propose that the 
                         distribution of vegetation classes highlight a morphology 
                         attributed to a Quaternary megafan developed previous to the 
                         modern fluvial tributary system. The characterization of such 
                         megafan is important for reconstructing landscape changes 
                         associated with the evolution of the Amazon drainage basin.",
                  doi = "10.3390/rs61110931",
                  url = "http://dx.doi.org/10.3390/rs61110931",
                 issn = "2072-4292",
                label = "lattes: 7888258901938956 1 CremonRossZani:2014:ClVeOv",
             language = "en",
           targetfile = "remotesensing-06-10931cremon.pdf",
                  url = "http://www.mdpi.com/2072-4292/6/11/10931",
        urlaccessdate = "27 abr. 2024"
}