Assessment of the Impact of El Niño-Southern Oscillation (ENSO) Events on Rainfall Amount in South-Western Nigeria
Nze-Esiaga Nnawuike
Full Length Research Paper I Published August,2016
Journal of Physical Science and Environmental Studies Vol. 2 (2), pp. 23-29
ABSTRACT
The need to have a quantitative means of predicting rainfall
depth is essential and inevitable for the purposes of
planning and policy formulation, as weather varies
significantly from one year to another. The different phases
of the El Niño Southern Oscillation (El Niño, La Niña and
Neutral phase) affect rainfall patterns in different parts
of the world in various ways. Hence a better understanding
of the impact of these weather phenomena on rainfall amount
over a region would improve the quality of rainfall
prediction in that region. This study examined the
relationship between these weather events and the rainfall
amount in South-Western Nigeria. Monthly rainfall data from
six meteorological stations in South-Western Nigeria over
the period 1985 to 2014 (30 years) were analysed in relation
to three El Nino-Southern Oscillation (ENSO) phases. The
analysis showed that the ENSO events have no
significant relationship with rainfall amount in all the
stations of the region, over the period considered.
Therefore, based on this study, the use of ENSO phases can
be said to be an inadequate tool for rainfall amount
prediction over this region.
Key words: Rainfall amount, El Niño-Southern
Oscillation (ENSO), El Niño, La Niña and Neutral phase and
South-Western Nigeria.
- Journal of Agricultural Science and Food Technology (JASFT)
- Journal of Medical and Biological Science Research (JMBSR)
- Journal of Scientific Research and Essays (JSRE)
- Research Journal of Educational Studies and Review (RJESR)
- Journal of Physical Science and Environmental Studies (JPSES)
- Research Journal of Engineering and Technology (RJET)
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Pearl Journal of Management, Social Science and Humanities (PJMSSH)