@Article{BarrosOyam:2010:SiMeAs,
               author = "Barros, Sheila Santana de and Oyama, Marcos Daisuke",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         de Aeron{\'a}utica e Espa{\c{c}}o (IAE)}",
                title = "Sistemas meteorol{\'o}gicos associados {\`a} ocorr{\^e}ncia de 
                         precipita{\c{c}}{\~a}o no centro de lan{\c{c}}amento de 
                         Alc{\^a}ntara",
              journal = "Revista Brasileira de Meteorologia",
                 year = "2010",
               volume = "25",
               number = "3",
                pages = "333--344",
             keywords = "chuva, sistemas convectivos, costa norte do Brasil, rainfall, 
                         convective systems, Brazilian northern coast.",
             abstract = "O Centro de Lan{\c{c}}amento de Alc{\^a}ntara (CLA; 2° 22'S, 44º 
                         23'W) tem papel importante para as atividades aeroespaciais no 
                         Brasil, sendo de interesse estudar os sistemas precipitantes 
                         atuantes sobre a regi{\~a}o. O trabalho teve como objetivo 
                         caracterizar os sistemas associados aos eventos de 
                         precipita{\c{c}}{\~a}o ocorridos no CLA entre 2005 e 2006, 
                         utilizando totais hor{\'a}rios de precipita{\c{c}}{\~a}o, dados 
                         de Rean{\'a}lise do NCEP/NCAR, temperatura de brilho do 
                         sat{\'e}lite GOES-12 e radia{\c{c}}{\~a}o de onda longa 
                         emergente. Para tal, definiram-se crit{\'e}rios para identificar 
                         os sistemas meteorol{\'o}gicos de grande, meso e de escala local 
                         associados {\`a} precipita{\c{c}}{\~a}o no CLA. Os resultados 
                         apontaram que 40% dos eventos de precipita{\c{c}}{\~a}o 
                         estiveram associados a fatores de grande escala, destacando-se a 
                         Zona de Converg{\^e}ncia Intertropical. Verificou-se que 60% 
                         (40%) dos eventos de precipita{\c{c}}{\~a}o se devem a processos 
                         estratiformes (convectivos). Os sistemas convectivos apresentaram 
                         as seguintes caracter{\'{\i}}sticas: {\'a}reas entre 104 km2 e 
                         25x104 km2, chuva posicionada na por{\c{c}}{\~a}o convectiva do 
                         sistema, intensifica{\c{c}}{\~a}o por convec{\c{c}}{\~a}o 
                         diurna, inclus{\~a}o em um sistema de escala maior e origem 
                         preferencial de sudeste ou nordeste. Os sistemas formados por 
                         processos estratiformes se subdividiram quase igualmente em dois 
                         grupos: resqu{\'{\i}}cios de sistemas convectivos anteriormente 
                         atuantes no CLA e sistemas que n{\~a}o est{\~a}o associados a 
                         nenhum processo convectivo. ABSTRACT: The Alc{\^a}ntara Rocket 
                         Launching Center (CLA; 2° 22'S, 44º 23'W) plays an important role 
                         in aerospace research activities in Brazil, and so it is of 
                         interest to study the precipitation systems over the CLA region. 
                         This work aimed at characterizing the systems associated with 
                         precipitation occurrence at CLA from 2005 to 2006 by using hourly 
                         precipitation data, NCEP/NCAR Reanalysis data, brightness 
                         temperature data from GOES-12 satellite and outgoing longwave 
                         radiation data. Criteria were defined to identify large, meso and 
                         local scale meteorological systems associated with precipitation 
                         at CLA. About 40% of precipitation events were associated with 
                         large scale systems, mainly the Intertropical Convergence Zone, 
                         and about 60% (40%) of precipitation events are due to convective 
                         (stratiform) processes. The convective systems showed the 
                         following characteristics: area between 104 km2 e 25x104 km2, 
                         precipitation located in convective part of the system, 
                         intensification by diurnal convection, inclusion in a larger scale 
                         system and preferred southeasterly or northeasterly propagation. 
                         The systems formed from stratiform processes could be divided 
                         almost equally in two groups: reminder of convective systems 
                         previously active over CLA and systems that are not associated 
                         with any convective process.",
                  doi = "10.1590/S0102-77862010000300005",
                  url = "http://dx.doi.org/10.1590/S0102-77862010000300005",
                 issn = "0102-7786",
             language = "pt",
           targetfile = "barros.pdf",
        urlaccessdate = "15 jun. 2024"
}