@Article{RossatoSouz:2016:ObSoMo,
               author = "Rossato, Fernando and Souza, Ronald Buss de",
          affiliation = "{Universidade Federal de Santa Maria (UFSM)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Observa{\c{c}}{\~o}es sobre a modula{\c{c}}{\~a}o da camada 
                         limite atmosf{\'e}rica marinha devida {\`a} passagem de um 
                         sistema frontal no Atl{\^a}ntico Sudoeste",
              journal = "Ci{\^e}ncia e Natura",
                 year = "2016",
               volume = "38",
               number = "Esp.",
                pages = "388--293",
                 note = "{IX Workshop Brasileiro de Micrometerologia}",
             keywords = "Camada Limite Atmosf{\'e}rica Marinha. Fluxos de calor, Marine 
                         Atmospheric Boundary Layer. Heat Fluxes.",
             abstract = "Entre os dias 6 a 9 de dezembro de 2012, o Navio 
                         Oceanogr{\'a}fico Alpha-Crucis realizou esta{\c{c}}{\~o}es 
                         oceanogr{\'a}ficas no Oceano Atl{\^a}ntico Sudoeste em apoio aos 
                         projetos SAMOC e ACEx. Durante o cruzeiro de pesquisa, o navio 
                         realizou medi{\c{c}}{\~o}es com o lan{\c{c}}amento de 
                         bal{\~o}es meteorol{\'o}gicos. A partir de dados coletados pelas 
                         radiossondas, foi poss{\'{\i}}vel verificar a variabilidade da 
                         camada limite atmosf{\'e}rica marinha (CLAM) na {\'a}rea e 
                         per{\'{\i}}odo de estudo. A partir de dados meteorol{\'o}gicos 
                         e oceanogr{\'a}ficos, foi poss{\'{\i}}vel estimar os fluxos de 
                         calor latente e sens{\'{\i}}vel a partir de 
                         parametriza{\c{c}}{\~o}es bulk. Durante um epis{\'o}dio de 
                         forma{\c{c}}{\~a}o de um ciclone extratropical, os resultados 
                         desse trabalho demonstram o impacto das condi{\c{c}}{\~o}es 
                         sin{\'o}ticas sobre a evolu{\c{c}}{\~a}o da CLAM. Na 
                         condi{\c{c}}{\~a}o pr{\'e}-frontal, verificou-se uma 
                         estratifica{\c{c}}{\~a}o da CLAM. Os fluxos de calor latente e 
                         sens{\'{\i}}vel dirigidos do oceano para a atmosfera foram 
                         baixos ou negativos (da atmosfera para o oceano). Na 
                         condi{\c{c}}{\~a}o p{\'o}s-frontal, a CLAM apresentou-se bem 
                         desenvolvida, com uma altura de 1200 m e os fluxos de calor 
                         latente e sens{\'{\i}}vel do oceano para a atmosfera foram mais 
                         intensos. Essas observa{\c{c}}{\~o}es s{\~a}o fundamentais para 
                         ampliar o entendimento dos processos f{\'{\i}}sicos que ocorrem 
                         na interface oceano-atmosfera e tem import{\^a}ncia prim{\'a}ria 
                         para a previs{\~a}o do tempo e clima na regi{\~a}o sul-sudeste 
                         do Brasil. ABSTRACT: Between 6-9 December 2012, the Oceanographic 
                         Vessel Alpha Crucis took oceanographic stations in the 
                         Southwestern Atlantic Ocean in support to both SAMOC and ACEx 
                         projects. During the research cruise, the vessel performed 
                         measurements with the release of weather balloons. From the data 
                         collected by the radiosondes, it was possible to verify the 
                         variability of the marine atmospheric boundary layer (MABL) in the 
                         area and period of study. From meteorological and oceanographic 
                         data, it was possible to estimate the latent and sensible heat 
                         fluxes from bulk parameterization. During an episode of formation 
                         of an extratropical cyclone, the results ,of this work demonstrate 
                         the impact of the synoptic conditions influencing the evolution of 
                         the MABL. During the prefrontal condition a stratification of the 
                         MABL was verified. The latent and sensible heat fluxes directed 
                         from the ocean to the atmosphere were low or negative (from the 
                         atmosphere to the ocean). During the post frontal condition, the 
                         MABL was well developed with a 1200 m height and the latent and 
                         sensible heat fluxes from the ocean to the atmosphere were more 
                         intense. These observations are fundamental to widen our 
                         understanding on the physical processes occurring at the 
                         ocean-atmosphere interface and have primary importance for the 
                         weather and climate forecast of the south-southwestern region of 
                         Brazil.",
                  doi = "10.5902/2179460X20278",
                  url = "http://dx.doi.org/10.5902/2179460X20278",
                 issn = "0100-8307 and 2179-460X",
             language = "pt",
           targetfile = "Rossato_observacoes.pdf",
                  url = "http://periodicos.ufsm.br/cienciaenatura/article/view/20278/pdf",
        urlaccessdate = "11 maio 2024"
}