@MastersThesis{Barros:2008:AsObDe,
               author = "Barros, Sheila Santana de",
                title = "Precipita{\c{c}}{\~a}o no Centro de Lan{\c{c}}amento de 
                         Alc{\^a}ntara: aspectos observacionais e de modelagem",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2008",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2008-05-29",
             keywords = "precipita{\c{c}}{\~a}o, Centro de Lan{\c{c}}amento de 
                         Alc{\^a}ntara (CLA), modelagem estat{\'{\i}}stica, 
                         observa{\c{c}}{\~o}es, rainfall, Alcantara Rocket Lauching 
                         Center (CLA), modeling, statistics, observation.",
             abstract = "O Centro de Lan{\c{c}}amento de Alc{\^a}ntara (CLA; 2° 22S, 44º 
                         23W) tem papel importante para as atividades aeroespaciais no 
                         Brasil, sendo assim de interesse estudar os sistemas precipitantes 
                         atuantes sobre a regi{\~a}o. O presente trabalho teve como 
                         objetivo caracterizar estatisticamente a precipita{\c{c}}{\~a}o 
                         no CLA usando dados hor{\'a}rios coletados de set/1993 a 
                         mar/2007, caracterizar os sistemas e fatores associados aos 
                         eventos de precipita{\c{c}}{\~a}o no CLA, e avaliar o desempenho 
                         do modelo regional MM5 em simular os eventos de 
                         precipita{\c{c}}{\~a}o de 2005 e 2006. Por meio da 
                         caracteriza{\c{c}}{\~a}o estat{\'{\i}}stica, confirmou-se que 
                         a esta{\c{c}}{\~a}o chuvosa (seca) esteve bem definida durante 
                         os meses de mar{\c{c}}o e abril (setembro a novembro), quando a 
                         precipita{\c{c}}{\~a}o apresentou seus maiores (menores) 
                         {\'{\i}}ndices pluviom{\'e}tricos. Principalmente na 
                         esta{\c{c}}{\~a}o chuvosa, grande parte dos eventos de chuva 
                         apresenta pouco total acumulado, curta dura{\c{c}}{\~a}o e 
                         pequena intensidade. Utilizando dados de Rean{\'a}lise, 
                         radia{\c{c}}{\~a}o de onda longa emergente e temperatura de 
                         brilho no canal infravermelho, tamb{\'e}m se definiram 
                         crit{\'e}rios para identificar os sistemas meteorol{\'o}gicos de 
                         grande, meso e de escala local associados aos eventos de 
                         precipita{\c{c}}{\~a}o no CLA em 2005 e 2006. Os resultados 
                         apontaram que 40% dos eventos de precipita{\c{c}}{\~a}o esteve 
                         associada 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 ocorridos no CLA se deve a 
                         processos estratiformes (convectivos). Em simula{\c{c}}{\~o}es 
                         com o modelo MM5 para 2005 e 2006, os resultados mostraram que o 
                         modelo superestima o total de precipita{\c{c}}{\~a}o mensal e o 
                         n{\'u}mero de eventos durante todo o ano. ABSTRACT: The 
                         Alc{\^a}ntara Rocket Launching Center (CLA; 2° 22S, 44º 23W) 
                         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 aims at statistically 
                         characterizing the precipitation in the CLA by using hourly 
                         precipitation data collected from September 1993 to March 2007; 
                         characterizing the systems and patterns associated to rainfall 
                         events in the CLA; and evaluating the regional model MM5 skill in 
                         simulating the rainfall events in 2005 and 2006. The statistical 
                         characterization ratified that the rainy (dry) season was well 
                         defined during March and April (September to November), when the 
                         total monthly precipitation was maximum (minimum). Mainly in the 
                         rainy season, the majority of rain events showed small amount of 
                         total rainfall, short duration and light intensity. By using NCEP 
                         reanalysis data, and outgoing longwave radiation and brightness 
                         temperature data, the criteria to identify large, meso, and local 
                         scale systems associated with precipitation over CLA in 2005 and 
                         2006 were defined. The results showed that 40% of the 
                         precipitation events were associated with large scale systems, 
                         mainly the Intertropical Convergence Zone. About 60% (40%) of the 
                         precipitation events over CLA are due to stratiform (convective) 
                         processes. In simulations using the MM5 regional model for 2005 
                         and 2006, the results showed that the model overestimated the 
                         monthly precipitation amount and number of events all year 
                         round.",
            committee = "Fernandez, Julio Pablo Reyes (presidente) and Oyama, Marcos 
                         Daisuke (orientador) and Angelis, Carlos Frederico de and Gandu, 
                         Adilson Wagner",
           copyholder = "SID/SCD",
         englishtitle = "Rainfall at the Alc{\^a}ntara Rocket Lauching Center: 
                         observational and modeling aspects",
             language = "pt",
                pages = "112",
                  ibi = "8JMKD3MGP8W/33END9S",
                  url = "http://urlib.net/ibi/8JMKD3MGP8W/33END9S",
           targetfile = "publicacao.pdf",
        urlaccessdate = "30 jun. 2024"
}