@InProceedings{SouzaCoutNasc:2017:MéSiEs,
               author = "Souza, Juarez Dantas and Couto, Arthur Cantalice and Nascimento, 
                         Lidiane Ramos",
                title = "Um m{\'e}todo simples para estimar radia{\c{c}}{\~a}o solar na 
                         superf{\'{\i}}cie com presen{\c{c}}a de nuvens na atmosfera",
            booktitle = "Anais...",
                 year = "2017",
               editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz 
                         Eduardo Oliveira e Cruz de",
                pages = "2378--2384",
         organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 18. (SBSR)",
            publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
              address = "S{\~a}o Jos{\'e} dos Campos",
             abstract = "The products derived from the MODIS sensor are known for their 
                         accuracy and have been used for various purposes. The quality of 
                         these products has been proven by users but improvements are still 
                         accomplished for new collections. It happened with the cloud 
                         products collections 5 and 6. The aim of this paper is to provide 
                         a simple method to estimate instantaneous solar radiation at the 
                         surface using the cloud optical properties derived from MODIS 
                         cloud product (MOD/MYD06) Collection 6. Many papers have been 
                         published aiming the same objective. However, physical methods are 
                         more accurate and are references to produce simplified methods. In 
                         this work, the method was developed using a radiative transfer 
                         model, based on the two-stream method, with the atmosphere divided 
                         into 40 layers with thickness between 23 and 25 mb. As a result, a 
                         very simple algorithm is applied to the entire atmospheric layer. 
                         The method was applied at three different sites in rural 
                         northeastern Brazil, where the observed clouds have optical depth 
                         within the range 1.7 to 26 (-). The results attest the efficiency 
                         of the proposed method. The comparison between estimated and 
                         observed values on the surface shows a mean absolute relative 
                         error of 12%, a mean absolute error of 58 W/m2 and a RMSE of 70 
                         W/m2, while existing methods present a RMSE between 90 and 100 
                         W/m2.",
  conference-location = "Santos",
      conference-year = "28-31 maio 2017",
                 isbn = "978-85-17-00088-1",
                label = "59259",
             language = "pt",
         organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                  ibi = "8JMKD3MGP6W34M/3PSLQFL",
                  url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3PSLQFL",
           targetfile = "59259.pdf",
                 type = "Meteorologia e climatologia",
        urlaccessdate = "27 abr. 2024"
}