| Revue: | Revista brasileira de geofisica |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000338723 |
| ISSN: | 0102-261X |
| Autores: | Bomventi, Tiago Nicolosi1 Wainer, Ilana Elazari Klein Coaracy1 Taschetto, Andrea Sardinha2 |
| Instituciones: | 1Universidade de Sao Paulo, Instituto Oceanografico, Sao Paulo. Brasil 2University of New South Wales, School of Mathematics and Statistics, Sydney, Nueva Gales del Sur. Australia |
| Año: | 2006 |
| Periodo: | Oct-Dic |
| Volumen: | 24 |
| Número: | 4 |
| Paginación: | 513-524 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | Deep convection processes associated with sea surface temperature (SST) is an important mechanism of thermal control, redistributing the sea surface energy to high levels of atmosphere. Tropical areas of warmer SST are usually associated with areas of high precipitation. The present work examines the degree of spatial and temporal correlation, existing between outgoing longwave radiation (OLR), precipitation (PPT) and SST in the Tropical Atlantic Ocean (20◦N-20◦S). It was verified that the area of highest spatial correlation among PPT, OLR and SST is located to the north of Equator, following the displacement of the Intertropical Convergence Zone (ITCZ). In the tropics, there are regions where the SST-OLR correlation presents different values, suggesting that would be the action of remote processes affecting differently these variables. The dispersion diagrams of OLR × SST for significant values of correlation, present a break of the trend when the SST is around 27 to 28◦C, indicating a transition of the state when deep convection occurs. The maximum precipitation occurs for SST near 28◦C |
| Resumen en portugués | O processo de conveccao profunda, associado a Temperatura da Superfıcie doMar (TSM) e um importante mecanismo de controle termico, redistribuindo a energia da superfıcie do mar para maiores nıveis da atmosfera. Areas tropicais de elevada TSM normalmente estao associadas a areas com altos ındices de precipitacao. O presente trabalho examina o grau de correlacao espacial e temporal existente entre a Radiacao de Onda Longa (ROL) emitida, a precipitacao (PREC) e a TSM no Oceano Atlantico Tropical (20◦S-20◦N). Verificou-se que aarea de maior correlacao espacial entre a PREC, ROL e TSM se situa ao norte do Equador, acompanhando o deslocamento da Zona de Convergencia Intertropical (ZCIT) |
| Disciplinas: | Geociencias |
| Palabras clave: | Ciencias de la atmósfera, Geofísica, Océano-Atmósfera, Radiación de onda larga, Lluvia, Temperatura superficial, Superficie del mar, Océano Atlántico |
| Keyword: | Earth sciences, Atmospheric sciences, Geophysics, Ocean-Atmosphere, Long wave radiation, Rainfall, Surface temperature, Sea surface, Atlantic Ocean |
| Texte intégral: | Texto completo (Ver PDF) |
