correlação entre as temperaturas da superfície do mar e a quantidade da precipitação na estação chuvosa no nordeste do estado de pernambuco correlation between sea surface temperature and index of rain in the rainy station in the northeast of the pernambuco state

Clicks: 235
ID: 191538
2011
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Abstract
O principal objetivo deste trabalho é avaliar o quanto a precipitação no nordeste do Estado de Pernambuco é devido à anomalias de Temperatura da Superfície do Mar (ATSM) do oceano Atlântico e do Pacífico. Para tanto, utilizou-se os totais mensais de precipitação registrados em 15 postos pluviométricos, distribuídos espacialmente ao longo da região estudada dos anos de 1963 a 1992, e ATSM extraídas da versão do Comprehensive Ocean-Atmospheric Data Set (COADS) de 1945 a 1993. Verificou-se que a região estudada possui uma forte correlação positiva com a área de estudo da Bacia do Atlântico Sul, e uma correlação negativa com a Bacia do Pacífico Equatorial. Entretanto, as anomalias na temperatura das águas superficiais da região do Atlântico, por estar adjacente a área analisada, apresentam uma correlação mais forte, ao mesmo nível de significância, que as anomalias do Pacífico. Os resultados mostram que um aquecimento anômalo nesta área do Atlântico pode causar eventos extremos de chuva na costa leste do Nordeste.
The main objective of this work is to evaluate how much the rain on the northeast of the Pernambuco State is due to the Sea Surface Temperature anomalies (SSTA) of Atlantic and Pacific Ocean. Accumulated monthly rain data registered at 15 rain gauges distributed throughout the studied region during the period from 1963 to 1992 and the 1945 to 1993 SSTA series extracted from the version of Comprehensive Ocean-Atmospheric Data Set (COADS) were used. It was verified that the studied region presents a strong positive correlation with the study area of the South Atlantic Basin and a negative correlation with the Equatorial Pacific Basin. However, the SSTA in the Atlantic region showed a stronger correlation compared to the correlation in the Pacific at the same significance level. This might be due to the proximity of the Atlantic analyzed area. It is suggested that an anomalous heating on this Atlantic area may cause extreme rain events on the east coast of Northeast Region.
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Authors ;Ana Paula Nunes Silva;Geber Barbosa de Albuquerque Moura;Pedro Rogério Giongo;Sérgio Ricardo Rodrigues Medeiros
Journal Applied microbiology and biotechnology
Year 2011
DOI
10.1590/S0102-77862011000100013
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862011000100013
Keywords
el niño climatology atlantic oceanmeteorology

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