Resumo
The authors studied the rainfall in Pesqueira (Pernambuco, Brasil) in a period of 48 years (1910 through 1957) by the method of orthogonal polynomials, degrees up to the fourth having been tried. None of them was significant, so that it seems that no trend is present. The mean observed was 679.00 mm., with standard error of the mean 205.5 mm., and a 30.3% coefficient of variation. The 95% level of probability would include annual rainfall from 263.9 up to 1094.1mm.
E. S. A. "Luiz de Queiroz"
ABSTRACT
The authors studied the rainfall in Pesqueira (Pernambuco, Brasil) in a period of 48 years (1910 through 1957) by the method of orthogonal polynomials, degrees up to the fourth having been tried. None of them was significant, so that it seems that no trend is present.
The mean observed was 679.00 mm., with standard error of the mean 205.5 mm., and a 30.3% coefficient of variation.
The 95% level of probability would include annual rainfall from 263.9 up to 1094.1mm.
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BIBLIOGRAFIA
- 1 - FREITAS, MOACYR BRITTO DE, 1951 - Anais da Terceira Reunião Brasileira de Ciência do Solo, 2.° tomo, pp. 843-914.
- 2 - GODOY HERNANI, IZAIAS RANGEL NOGUEIRA & FREDERICO PIMENTEL GOMES, 1959 - Estudo sôbre a queda de chuvas em Campinas (em publicação).
- 3 - PIMENTEL GOMES, F., 1958 - Curso de Estatística Experimental, 133 pp. Piracicaba.
O regime de chuvas em Pesqueira
Datas de Publicação
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Publicação nesta coleção
10 Set 2012 -
Data do Fascículo
1959
