@InProceedings{NevesArauArav:2013:AnĮgPr,
               author = "Neves, Danielson Jorge Delgado and Araujo, Rayana Santos and 
                         Arav{\'e}quia, Jos{\'e} Antonio",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "An{\'a}lise da {\'a}gua precipit{\'a}vel no in{\'{\i}}cio da 
                         esta{\c{c}}{\~a}o chuvosa das regi{\~o}es sudeste e centro 
                         oeste do Brasil/ Analysis of precipitable water at the beginning 
                         of the rainy season in the Southeast and Midwest of Brazil",
            booktitle = "Anais...",
                 year = "2013",
         organization = "Simp{\'o}sio Internacional de Climatologia, 5. (SIC).",
             keywords = "precipitable water, rainy season.",
             abstract = "A esta{\c{c}}{\~a}o chuvosa nas regi{\~o}es Centro Oeste e 
                         Sudeste do Brasil {\'e} o objeto de estudo da presente pesquisa, 
                         que enfoca a caracteriza{\c{c}}{\~a}o das condi{\c{c}}{\~o}es 
                         de umidade atmosf{\'e}rica nos instantes que precedem o inicio 
                         das chuvas sobre essas regi{\~o}es, para o per{\'{\i}}odo de 
                         2000 a 2010. Dados de rean{\'a}lise do Climate Forcast System 
                         Reanalysis (CFSR) de {\'a}gua precipit{\'a}vel ser{\~a}o usados 
                         para identificar o come{\c{c}}o da esta{\c{c}}{\~a}o chuvosa 
                         usando-se a metodologia proposta por Zeng e Lu (2004). Esta 
                         metodologia utiliza o {\'{\I}}ndice Normalizado de {\'A}gua 
                         Precipit{\'a}vel (NPWI) que permite identificar o instante em que 
                         ocorre o inicio da esta{\c{c}}{\~a}o chuvosa a partir do momento 
                         em que o {\'{\i}}ndice for superior ao limiar de 0,618. Essa 
                         data ser{\'a} confrontada com a encontrada usando-se dados de 
                         chuva do MERGE (Rozante et al, 2010), aplicando-se a metodologia 
                         proposta por Marengo et al. (2001). Ambas as metodologias apontam 
                         datas para o inicio da esta{\c{c}}{\~a}o chuvosa, pr{\'o}ximas 
                         {\`a}s datas indicadas pela literatura, ou seja, durante a 
                         primavera entre os meses de Setembro e Outubro, precedidos por um 
                         aumento gradual na quantidade de {\'a}gua precipit{\'a}vel na 
                         atmosfera dessas regi{\~o}es, o qual pode ser justificado pela 
                         intensifica{\c{c}}{\~a}o do jato de baixos n{\'{\i}}veis que 
                         ocorre nesse per{\'{\i}}odo, conduzindo a umidade proveniente do 
                         Atl{\^a}ntico e reciclada sobre a Amaz{\^o}nia, para a 
                         regi{\~a}o sudeste e centro oeste do Brasil. ABSTRACT: The rainy 
                         season in the Midwest and Southeast regions of Brazil is the 
                         object of study of this research, which focuses on the 
                         characterization of the conditions of atmospheric moisture in the 
                         moments preceding the onset of the rains on these regions for the 
                         period 2000-2010. Precipitable water reanalysis data of the 
                         {"}Climate Forcast System Reanalysis{"} (CFSR) will be used to 
                         identify the beginning of the rainy season using the methodology 
                         proposed by Zeng and Lu (2004). This methodology uses the 
                         Normalised Precipitable Water Index (NPWI) which identifies the 
                         instant at which occurs the start of the rainy season from the 
                         time when the index exceeds the threshold 0,618. This date will be 
                         confronted with that found using rainfall data of MERGE (ROZANTE 
                         et al, 2010), applying the methodology proposed by Marengo et al. 
                         (2001). Both methodologies indicate dates to the beginning of the 
                         rainy season close to the dates indicated in the literature, 
                         during the spring between the months of September and October, 
                         preceded by a gradual increase in the amount of precipitable water 
                         in the atmosphere of these regions, which can be explained by the 
                         intensification of the low level jet that occurs during this 
                         period, leading moisture from the Atlantic and recycled over the 
                         Amazon, to the southeast and center-west of Brazil.",
  conference-location = "Florian{\'o}polis",
      conference-year = "15-19, set.",
           targetfile = "Neves_An{\'a}lise.pdf",
        urlaccessdate = "15 jun. 2024"
}