@InProceedings{SimõesRochLapa:2003:AnCoEs,
               author = "Sim{\~o}es, Maur{\'{\i}}cio dos Santos and Rocha, Jansle Vieira 
                         and Laparelli, Rubens A. Carmago",
          affiliation = "{Universidade Estadual de Campinas (UNICAMP). FEAGRI.} and 
                         {Universidade Estadual de Campinas (UNICAMP). FEAGRI.} and 
                         {Universidade Estadual de Campinas (UNICAMP). Centro de Pesquisas 
                         Meteorol{\'o}gicas e Clim{\'a}ticas Aplicadas {\`a} Agricultura 
                         (CEPAGRI).}",
                title = "An{\'a}lise do comportamento espectral de uma {\'a}rea comercial 
                         de cana-de-a{\c{c}}{\'u}car em duas safras por meio de 
                         radiometria de campo",
            booktitle = "Anais...",
                 year = "2003",
               editor = "Epiphanio, Jos{\'e} Carlos Neves and Fonseca, Leila Maria 
                         Garcia",
                pages = "2367 - 2374",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 11. (SBSR).",
            publisher = "INPE",
              address = "S{\~a}o Jos{\'e} dos Campos",
             keywords = "sugar cane, field spectroscopy, NDVI.",
             abstract = "This paper describes a multitemporal research of sugar cane 
                         spectral behavior using field spectroscopy and its relationship 
                         with agronomic parameters. During two seasons a commercial sugar 
                         cane field at S{\~a}o Jo{\~a}o Sugar Mill in Araras/SP was 
                         monitored. Radiometric data and agronomic chracterization were 
                         gathered in 8 field campaigns. Field spectral vegetation index 
                         showed the same pattern in both seasons and similar to the 
                         agronomic parameters. NDVI and reflectancy in the filter 1/band 4 
                         increased their values as far as the end of vegetative phase, 
                         around 220 days after harvest. After that phase the NDVI values 
                         and the reflectancy started to estabilize and decrease because of 
                         the ripening phase and the senescecy of the crop. The data of the 
                         first season presented lower coefficient of variation showing an 
                         increase of the spatial variability of the sugar cane production, 
                         caused by higher number of limitation production factors in the 
                         second season. The results showed that field spectroscopy is an 
                         important data to study and monitor crops.",
  conference-location = "Belo Horizonte",
      conference-year = "5-10 abr. 2003",
                 isbn = "85-17-00017-X",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais",
                  ibi = "ltid.inpe.br/sbsr/2002/11.15.01.29",
                  url = "http://urlib.net/ibi/ltid.inpe.br/sbsr/2002/11.15.01.29",
           targetfile = "17_241.pdf",
                 type = "Radiometria e Sistemas Sensores / Radiometry and Sensor Systems",
        urlaccessdate = "18 jun. 2024"
}