@Article{SugawaraRUDOAdam:2008:FeUsLa,
               author = "Sugawara, Luciana Miura and RUDORFF, Bernardo Friedrich Theodor 
                         and Adami, Marcos",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Feasibility of the use of Landsat imagery to map soybean crop 
                         areas in Parana, Brazil / Viabilidade de uso de imagens do Landsat 
                         em mapeamento de {\'a}rea cultivada com soja no Estado do 
                         Paran{\'a}",
              journal = "Pesquisa Agropecu{\'a}ria Brasileira",
                 year = "2008",
               volume = "43",
               number = "12",
                pages = "1763--1768",
                month = "dec.",
             keywords = "Agriculture, glycine max, cloud cover, temporal resolution, 
                         optical remote sensing keywords plus: modis, continuity, cover.",
             abstract = "O objetivo deste trabalho foi avaliar a viabilidade do uso de 
                         imagens do Landsat, para o mapeamento da {\'a}rea cultivada com 
                         soja, nas safras de 2000/2001 a 2006/2007, no Estado do 
                         Paran{\'a}. A an{\'a}lise dos {"}quick looks{"} das imagens dos 
                         sensores TM e ETM+ foi feita para selecionar as imagens {\'u}teis 
                         para o mapeamento da cultura da soja. Os {"}quick looks{"} foram 
                         classificados de acordo com a presen{\c{c}}a ou a aus{\^e}ncia 
                         de nuvens e de problemas t{\'e}cnicos. Conforme os resultados, em 
                         nenhum dos sete anos teria sido poss{\'{\i}}vel mapear a 
                         {\'a}rea cultivada com soja, em todo o Estado, mesmo nos 
                         tr{\^e}s anos-safra em que os sat{\'e}lites Landsat 5 e 7 
                         operaram em conjunto. A presen{\c{c}}a de nuvens, detectada pelos 
                         sensores {\'o}pticos, deve ser levada em conta no mapeamento 
                         sistem{\'a}tico da {\'a}rea cultivada com culturas de 
                         ver{\~a}o, no Brasil. ABSTRACT: The aim of this work was to 
                         evaluate the feasibility of the use of Landsat imagery to map 
                         soybean crop areas in Parana. Brazil, during crop years from 
                         2000/2001 to 2006/2007. The analysis of the quick look images from 
                         the TM and ETM+ sensors was performed to Select useful images to 
                         map soybean crop. The quick looks were classified according to the 
                         presence or absence of clouds and technical problems. It was 
                         verified that for none of the seven crop years it Would have been 
                         possible to map soybean crop for the entire Parana state. even for 
                         the three crop years during which both satellites Landsat 5 and 7 
                         were operating simultaneously. The presence of clouds, detected 
                         through the optical sensors, Should be considered for systematic 
                         mapping of summer crops in Brazil.",
                  doi = "10.1590/S0100-204X2008001200019",
                  url = "http://dx.doi.org/10.1590/S0100-204X2008001200019",
                 issn = "0100-204X",
             language = "pt",
           targetfile = "v43n12a19.pdf",
        urlaccessdate = "15 jun. 2024"
}