@Article{LopesJúniorMoCoFeCaQu:2021:FrPrOc,
               author = "Lopes J{\'u}nior, Jos{\'e} Marcelo and Moura, Marcos 
                         Ant{\^o}nio Lima and Costa, Nayara Barreto da and Ferreira 
                         J{\'u}nior, Ricardo and Carvalho, Andr{\'e} Luiz de and Querino, 
                         Carlos Alexandre Santos",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de Alagoas (UFAL)} and {Universidade Federal 
                         de Alagoas (UFAL)} and {Universidade Federal de Alagoas (UFAL)} 
                         and {Universidade Federal de Alagoas (UFAL)} and {Universidade 
                         Federal do Amazonas (UFAM)}",
                title = "Frequ{\^e}ncia e probabilidade de ocorr{\^e}ncia de 
                         transmit{\^a}ncia atmosf{\'e}rica global para a regi{\~a}o de 
                         Macei{\'o}-Alagoas",
              journal = "Brazilian Journal of Development",
                 year = "2021",
               volume = "7",
               number = "2",
                pages = "14685--14700",
                month = "feb.",
             keywords = "Radia{\c{c}}{\~a}o solar, Energia renov{\'a}vel, 
                         Irradi{\^a}ncia solar, Caracteriza{\c{c}}{\~a}o, Solar 
                         radiation, Renewable energy, Solar irradiance, Characterization.",
             abstract = "A radia{\c{c}}{\~a}o solar {\'e} essencial, pois sua 
                         distribui{\c{c}}{\~a}o ao redor do planeta estabelece as 
                         varia{\c{c}}{\~o}es de todos os elementos meteorol{\'o}gicos, 
                         determinando os padr{\~o}es de circula{\c{c}}{\~a}o 
                         atmosf{\'e}rica e oce{\^a}nica e configurando o clima terrestre, 
                         al{\'e}m de atualmente ser amplamente utilizada para a 
                         produ{\c{c}}{\~a}o de energia alternativa. Assim, o objetivo 
                         deste trabalho {\'e} analisar a radia{\c{c}}{\~a}o solar 
                         atrav{\'e}s de frequ{\^e}ncia e probabilidade de ocorr{\^e}ncia 
                         de transmit{\^a}ncia atmosf{\'e}rica global em diferentes 
                         per{\'{\i}}odos sazonais para a regi{\~a}o de Macei{\'o}, 
                         estado de Alagoas. A RG foi obtida de dados proveniente das 
                         esta{\c{c}}{\~o}es autom{\'a}ticas do INMET para a cidade de 
                         Macei{\'o}, do per{\'{\i}}odo de jan/2014 a dez/2017. A Ro foi 
                         calculada atrav{\'e}s da constante solar, raio vetor da 
                         {\'o}rbita terrestre e {\^a}ngulo zenital. O Kt foi calculado 
                         atrav{\'e}s da raz{\~a}o entre a RG e Ro. Foram feitos 
                         histogramas de frequ{\^e}ncias e frequ{\^e}ncias acumuladas de 
                         Kt. Para an{\'a}lise sazonal das condi{\c{c}}{\~o}es da 
                         radia{\c{c}}{\~a}o solar e do Kt os dados foram separados em 
                         diferentes per{\'{\i}}odos sazonais. A frequ{\^e}ncia 
                         hor{\'a}ria de Kt observada na esta{\c{c}}{\~a}o seca e chuvosa 
                         teve maior ocorr{\^e}ncia em condi{\c{c}}{\~o}es de c{\'e}u 
                         parcialmente nublado, com m{\'e}dia equivalente a 53,62 % do 
                         total dos valores para ambas as esta{\c{c}}{\~o}es. A 
                         frequ{\^e}ncia do Kt di{\'a}rio para as esta{\c{c}}{\~o}es 
                         teve maior ocorr{\^e}ncia em condi{\c{c}}{\~o}es de c{\'e}u 
                         parcialmente nublado com uma m{\'e}dia de 79,74 % dos dados e a 
                         probabilidade de ocorr{\^e}ncia anual tamb{\'e}m foi maior para 
                         condi{\c{c}}{\~o}es de c{\'e}u parcialmente nublado com 57,21 % 
                         para os valores hor{\'a}rios e 83,29 % para valores di{\'a}rios. 
                         ABSTRACT: Solar radiation is essential because it is distribution 
                         around the planet establishes the variations of all the 
                         meteorological elements, determining the atmospheric and oceanic 
                         circulation patterns and configuring the terrestrial climate, 
                         besides being currently widely used for the production of 
                         alternative energy. Thus, the objective of this work is to analyze 
                         the solar radiation through frequency and probability of 
                         occurrence of clearness index in different seasonal periods for 
                         the region of Macei{\'o}, state of Alagoas. The RG was obtained 
                         from data from the INMET automatic stations for the city of 
                         Macei{\'o}, from January 2014 to December 2017. The Ro was 
                         calculated through the solar constant, vector radius of the 
                         Earth's orbit and zenith angle. Kt was calculated by the ratio of 
                         RG to Ro. Histograms of frequencies and accumulatedfrequencies of 
                         Kt were made. For the seasonal analysis of the solar radiation and 
                         Kt conditions the data were separated in different seasonal 
                         periods. The hourly frequency of Kt observed in the dry and rainy 
                         season had the highest occurrence in partially cloudy sky 
                         conditions, with an average of 53.62% of the total values for both 
                         seasons. The frequency of daily Kt for the seasons had higher 
                         occurrence in partially cloudy sky conditions with an average of 
                         79.74% of the data and the probability of annual occurrence was 
                         also higher for partially cloudy sky conditions with 57.21% for 
                         the values and 83.29% for daily values.",
                  doi = "10.34117/bjdv7n2-204",
                  url = "http://dx.doi.org/10.34117/bjdv7n2-204",
                 issn = "2525-8761",
             language = "en",
           targetfile = "Lopes junior_frequencia.pdf",
        urlaccessdate = "09 maio 2024"
}