Answers are grounded in this paper and cite their sources.
Power spectral analysis of annual rainfall has been performed for Edo and Delta States (formerly Mid‐Western Region) in Nigeria using data for 1931–1997 in order to identify any regular periodicities which may be present. The Hanning filter was employed for the purpose of smoothing the power spectral. Irregular short‐term periodicities were evident with significant cycles of between 3 and 6 years.
No takes yet. Share an insight, caveat, or question.
Joseph O. Adejuwon (2010) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: