@InProceedings{SchirmbeckFontRobeSchi:2015:BaEnÁr,
               author = "Schirmbeck, Juliano and Fontana, Denise Cybis and Roberti, 
                         D{\'e}bora Regina and Schirmbeck, Lucimara Wolfarth",
                title = "Balan{\c{c}}o de Energia em {\'A}reas de Cultivo de Soja no Rio 
                         Grande do Sul a Partir de Produtos MODIS",
            booktitle = "Anais...",
                 year = "2015",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "2822--2829",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 17. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "The requires new techniques for continuous monitoring of been 
                         crops.The state of Rio Grande do Sul is the third largest producer 
                         of soybean in Brazil. It is known that the variability of the 
                         rainfall occurred in the state is the main cause of loss of crops 
                         and in the soil water balance the largest output is given by 
                         evapotranspiration. There is consensus among the scientific 
                         community that the Energy Balance is a technique for obtaining 
                         precise and accurate evapotranspiration.The purpose of this study 
                         was to estimate from MODIS data, the components of energy balance. 
                         The data obtained from the images were compared with in situ 
                         measurements obtained by an Eddy Correlation tower.The study area 
                         included the Macro Regi{\~a}o Noreste of State. Thirteen days 
                         were analyzed among the soybeans crop cycle of years 2008/2009 and 
                         2009/2010. The selected days include a clear sky days .The results 
                         from the in situ measurements indicated a net radiation of 173 
                         W/m2 which 75% was as latent heat flux, 20% by sensible heat flux 
                         and, 5% by heat flow in soil. A comparison of data obtained from 
                         the images showing adjustments with r2 of 0.81, LE with r2 of 0.52 
                         for G with r2 of 0.32 and H with r2 of 0.36. It was observed that 
                         adjustments G and H were less influenced by three specific dates 
                         on which vegetation was not 100% coverage. The results was showed 
                         consistent relationships exist between components of energy 
                         balance obtained by remote sensing and micrometeorological 
                         tower.",
  conference-location = "Jo{\~a}o Pessoa",
      conference-year = "25-29 abr. 2015",
                 isbn = "978-85-17-0076-8",
                label = "559",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3JM4ADS",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3JM4ADS",
           targetfile = "p0559.pdf",
                 type = "Meteorologia e climatologia",
        urlaccessdate = "12 maio 2024"
}