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Journal of Earth Science & Climatic Change
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  • Research Article   
  • J Earth Sci Clim Change, Vol 13(7): 632

Evaluation of Meteorological Drought in North Central Nigeria Using Standardized Precipitation Index

IDEKI O1* and ADEFISAN EA2
1Department of Meteorology and Climate Change, Nigeria Maritime University Okerenkoko, Nigeria
2Department of Meteorology and Climate science, Federal University of Technology Akure, Nigeria
*Corresponding Author : IDEKI O, Department of Meteorology and Climate Change, Nigeria Maritime University Okerenkoko, Nigeria, Tel: +2348034520127, Email: oyelistic@yahoo.com

Received Date: Jul 01, 2022 / Accepted Date: Jul 21, 2022 / Published Date: Jul 28, 2022

Abstract

Evaluation of drought risk in North Central Nigeria was carried out in this study using Standardized Precipitation Index (SPI). Analysis of rainfall variability was carried out using ANOVA from rainfall data collected from the Nigerian Meteorological Agency (NIMET), Abuja for all the six states that constitute the study area. In a bid to evaluate the risk of drought in each of the meteorological stations, the rainfall data was used to compute SPI 12-month time scale which is ideal for meteorological drought in all the stations. The SPI results were further subjected to Mann-Kendal and Sen’s slope analysis for trends detection. The SPI model was effective in evaluating the risk of meteorological drought as the values were from near normal to severe droughts in plateau and Niger states. The paper concluded that seasonal and annual rainfall variation account for the vulnerability of the region to the risk of meteorological drought. The study recommends SPI weather base index insurance, development of early warning, implementation of long-term adaptation strategies and increase drought awareness among others as part of mitigation strategies against its impact on water resources and the rainfall dependent agriculture in the region.

Keywords: Drought; Rainfall; Evaluation; Standardized Precipitation Index (SPI); Mann kendall; Sen’s slope

Citation: IDEKI O, ADEFISAN EA (2022) Evaluation of Meteorology Drought in North Central Nigeria Using Standardized Precipitation Index. J Earth Sci Clim Change, 13: 632.

Copyright: © 2022 IDEKI O, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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