Análise da Relação Entre a Formação das Linhas de Instabilidade Amazônicas e a Temperatura da Superfície do Oceano Atlântico (Analysis of the Relationship Between the Formation of Amazon Squall Lines and Sea Surface Temperature of Atlantic Ocean)
DOI:
https://doi.org/10.26848/rbgf.v10.6.p1712-1720Abstract
A possível influência exercida pela temperatura da superfície do Oceano Atlântico em diferentes pontos da bacia na formação das linhas de instabilidade amazônicas, que se formam na costa norte do Brasil foi estudada, visto que a temperatura da superfície do mar pode influenciar o tempo e o clima. Utilizando as reanálises do European Centre for Medium-Range Weather Forecasts (ECMWF), uma climatologia de 10 anos de casos de linhas de instabilidade foi feita entre os anos de 2000 e 2009. Foram utilizados os softwares Microsoft Excel 2013, Climate Data Operators (CDO) e Grid Analysis and Display System (GRADS) para as análises. Constatou-se que no período em que ocorreu um aumento/diminuição na TSM houve também, um aumento/diminuição na ocorrência de casos de linhas de instabilidade. Esses resultados se mostram relevantes, pois servem para previsão de eventos extremos nessa região. Além disto, no futuro, pretende-se entender como esta relação realmente acontece. A B S T R A C T The possible influence of the sea surface temperature of the Atlantic Ocean in different points of the basin in the formation of amazon squall lines that form on the north coast of Brazil was studied, whereas the sea surface temperature can influence weather and climate. Using the European Centre for Medium - Range Weather Forecasts (ECMWF) reanalysis, a climatology of ten years of squall lines cases was made between 2000 and 2009 years. It was utilized the Microsoft Excel 2013, Climate Data Operators (CDO) and Grid Analysis and Display System (GRADS) for analyzes. It was found that when was observed an increase/decrease in SST, there was also an increase/decrease in the number of occurrence of squall lines cases. These results are relevant because could be used to forecast extreme events in the region. In addition, in the future it will intend to understand how this relationship actually happens. Keywords: Squall lines, sea surface temperature, Amazon, Atlantic Ocean.Downloads
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