@InProceedings{SantosSilvSantBrag:2013:DiMoEs,
               author = "Santos, Francineide Amorim Costa and Silva, Bernardo Barbosa da 
                         and Santos, Carlos Antonio Costa dos and Braga, Alexandra Chaves",
                title = "Diferentes modelos de estimativa da radia{\c{c}}{\~a}o de onda 
                         longa a partir de dados MODIS/TERRA",
            booktitle = "Anais...",
                 year = "2013",
               editor = "Epiphanio, Jos{\'e} Carlos Neves and Galv{\~a}o, L{\^e}nio 
                         Soares",
                pages = "8698--8705",
         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 = "The objective of this study is to analyze the accuracy of 
                         different methods to estimate the surface downwelling and 
                         upwelling longwave radiation (LWR) using data from Moderate 
                         Resolution Imaging Spectroradiometer (MODIS) onboard the satellite 
                         Terra. For downwelling LWR three methods were used which is 
                         conventionally called SEBAL (S), METRIC (M) and Bisht (B). For 
                         application of the methods SEBAL and METRIC need only data for air 
                         temperature, which is easily obtained from the weather station. 
                         The method proposed by Bisht was processed in a completely 
                         autonomous form because the air temperature, as well as the dew 
                         temperature, were obtained from MODIS/ TERRA data. The upwelling 
                         LWR was estimated from a single mode, only with remote sensing 
                         data. The SEBAL method demonstrated greater accuracy, followed by 
                         METRIC, with standard deviations of 19 and 20 Wm-2, respectively. 
                         Finally, the Bisht method showed that errors introduced were above 
                         the acceptable precision (36 Wm-2). It was also examined the 
                         emissivities estimated by each method, as well as their impact on 
                         the accuracy of longwave radiation data. It is observed that the 
                         performance not so satisfactory of the Bisht methodology is due to 
                         estimate of the atmosphere emissivity, whose performance was not 
                         as good as the others. This is due to the fact of that the air 
                         temperature data obtained of the MODIS sensor were 2 3° higher 
                         than air temperature measured on the meteorological towers.",
  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 = "550",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "3ERPFQRTRW34M/3E7GE38",
                  url = "http://urlib.net/ibi/3ERPFQRTRW34M/3E7GE38",
           targetfile = "p0550.pdf",
                 type = "Sensoriamento Remoto e Mudan{\c{c}}as Globais",
        urlaccessdate = "04 maio 2024"
}