@InProceedings{AntunesEsquLampRodr:2013:ReCiHa,
               author = "Antunes, Jo{\~a}o Francisco Gon{\c{c}}alves and Esquerdo, 
                         J{\'u}lio C{\'e}sar Dalla Mora and Lamparelli, Rubens Augusto 
                         Camargo and Rodrigues, Luiz Henrique Antunes",
                title = "Representa{\c{c}}{\~a}o de ciclos harm{\^o}nicos de s{\'e}ries 
                         temporais de dados EVI/MODIS para an{\'a}lise do cultivo da 
                         cana-de-a{\c{c}}{\'u}car",
            booktitle = "Anais...",
                 year = "2013",
               editor = "Epiphanio, Jos{\'e} Carlos Neves and Galv{\~a}o, L{\^e}nio 
                         Soares",
                pages = "393--400",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 16. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "MODIS (Moderate Resolution Imaging Spectroradiometer) data provide 
                         coverage of large areas and high periodicity. These 
                         characteristics are fundamental to analyze strategic agricultural 
                         crops in Brazil, such as sugarcane. The harmonic analysis can be 
                         used for the study of time-series of remote sensing data in order 
                         to evaluate the temporal behavior of vegetation indices. The 
                         visual representation of the harmonic amplitude and phase terms 
                         can assist the image interpretation process through a color 
                         combination. However, as the phase term is quantified on a 
                         circular scale, it is recommended to carry out a color 
                         transformation into the HLS (hue, lightness, saturation) space, as 
                         the hue component is inherently circular, which provides a smooth 
                         visual transition effect between the cycles. In this context, the 
                         objective of this study was to analyze of the sugarcane 
                         cultivation in S{\~a}o Paulo State using harmonic analysis 
                         applied to EVI (Enhanced Vegetation Index) time-series data 
                         throughout 10 cropping years, from October 2001 to September 2011, 
                         using the HLS representation of the harmonic terms. The results 
                         showed that the sugarcane cultivation in S{\~a}o Paulo State 
                         presented spatial patterns that match the vegetation development, 
                         which is consistent with the variability of the seasonal rainfall 
                         which affects the maximum EVI period. The HLS representation of 
                         harmonic terms has showed to be an effective tool for visual 
                         interpretation of vegetation cycles.",
  conference-location = "Foz do Igua{\c{c}}u",
      conference-year = "13-18 abr. 2013",
                 isbn = "{978-85-17-00066-9 (Internet)} and {978-85-17-00065-2 (DVD)}",
                label = "364",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "3ERPFQRTRW34M/3E7GCRJ",
                  url = "http://urlib.net/ibi/3ERPFQRTRW34M/3E7GCRJ",
           targetfile = "p0364.pdf",
                 type = "Agricultura",
        urlaccessdate = "15 jun. 2024"
}