Fortaleza, Ceará, Brazil Rainfall

Richard H. Jones Department of Biometrics, University of Colorado Medical Center, Denver 80220

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John P. Kearns Test and Evaluation Laboratory, National Weather Service, NOAA, Sterling, Va. 22170

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Abstract

Reanlysis of the 121 years of annual rainfall data at Fortaleza, Ceará, Brazil, given in a note by Markham (1974) does not support the conclusion of periodicities or quasi-periodicities in the data. The hypotheses that the data consists of statistically independent observations cannot be rejected at the 10% level based on tests of serial correlation, estimated spectrum and cumulative periodogram.

Abstract

Reanlysis of the 121 years of annual rainfall data at Fortaleza, Ceará, Brazil, given in a note by Markham (1974) does not support the conclusion of periodicities or quasi-periodicities in the data. The hypotheses that the data consists of statistically independent observations cannot be rejected at the 10% level based on tests of serial correlation, estimated spectrum and cumulative periodogram.

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