A spectral analysis of rainfall in Edo and Delta States (formerly Mid-Western Region), Nigeria

Authors

  • Joseph O. Adejuwon

    Corresponding author
    1. Department of Water Resources Management and Agrometeorology, University of Agriculture, Abeokuta, Nigeria
    • Department of Water Resources Management and Agrometeorology, University of Agriculture, Abeokuta, Nigeria.
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Abstract

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. Copyright © 2010 Royal Meteorological Society

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