Geadas severas na cafeicultura paulista de 1890-2000: relação com o fenômeno El Niño Oscilação Sul (ENOS)
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2000
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Resumo
Admite-se que o fenômeno ENOS provoca alterações anômalas no padrão de temperatura do ar durante o inverno na região sudeste do Brasil, incluindo o Estado de São Paulo. Relacionou-se o fenômeno El Niño Oscilação Sul (ENOS) com a ocorrência de geadas severas na cafeicultura paulista a partir de série histórica de dados do IAC, de temperaturas mínimas absolutas mensais de Campinas-SP, durante 111 anos, de 1890 a 2000. Não foi observado relação entre a ocorrência de geadas com o fenômeno ENOS. Geadas severas ocorreram tanto em anos precedidos com os fenômenos La Niña ou El Niño, como também na ausência deles.
According to the literature the El Niño Southern Oscillation (ENSO) phenomenon can cause anomalous alterations in the air temperature pattern during the winter season in the Southeast region of Brazil, including the State of São Paulo. Changes to the atmosphere during La Niña events are associated with increased probability of ocurrence of severe frosts. This paper linked the ENSO phenomenon with the occurrence of severe frosts in coffee crops in São Paulo State, based on historical series of absolute minimum air temperature for Campinas during the years of 1890 to 2000. It was not observed relationship between the occurence of frosts and ENSO phenomenon. Severe frosts happened in years preceded by La Niña or El Niño, as well as in their absence.
According to the literature the El Niño Southern Oscillation (ENSO) phenomenon can cause anomalous alterations in the air temperature pattern during the winter season in the Southeast region of Brazil, including the State of São Paulo. Changes to the atmosphere during La Niña events are associated with increased probability of ocurrence of severe frosts. This paper linked the ENSO phenomenon with the occurrence of severe frosts in coffee crops in São Paulo State, based on historical series of absolute minimum air temperature for Campinas during the years of 1890 to 2000. It was not observed relationship between the occurence of frosts and ENSO phenomenon. Severe frosts happened in years preceded by La Niña or El Niño, as well as in their absence.
Descrição
Trabalho apresentado no Simpósio de Pesquisa dos Cafés do Brasil (1.: 2000 : Poços de Caldas, MG). Resumos expandidos. Brasília, D.F. : Embrapa Café; Belo Horizonte : Minasplan, 2000. 2v. (1490p.) : il.
Palavras-chave
Café Geada El Niño La Niña, Coffee Frost El Niño La Niña
Citação
Camargo, Marcelo Bento Paes de; Alfonsi, Rogério Remo; Mello, Maria Helena de Almeida; Camargo, Angelo Paes de. Geadas severas na cafeicultura paulista de 1890-2000: relação com o fenômeno El Niño Oscilação Sul (ENOS). In: Simpósio de Pesquisa dos Cafés do Brasil (1.: 2000 : Poços de Caldas, MG). Resumos expandidos. Brasília, D.F. : Embrapa Café; Belo Horizonte : Minasplan, 2000. 2v. (1490p.), p. 62-64.