Spatio-Temporal Variation of Drought Severity in the Sudano-Sahelian Region of Nigeria: Implications for Policies on Water Management

Citation:
Sanni, M, Odekunle T, Adesina F.  2012.  Spatio-Temporal Variation of Drought Severity in the Sudano-Sahelian Region of Nigeria: Implications for Policies on Water Management, 2012/09/01. :415-430.

Abstract:

The African Ministerial Council on Science and Technology agreed that drought is one of the major environmental problems thatis afflicting the African continent, with its consequent negative impacts on the socioeconomic development of the affected
areas. It is within this context that this study assessed the spatio-temporal variation of drought severity in the Sudano-Sahelian
region (SSR) of Nigeria, which is highly vulnerable to drought. The study analysed spatio-temporal variation of drought severity
in the region between 1961 and 2006 using the Standardized Precipitation Index (SPI) and Principal Component Analysis (PCA).
It was established that most of the extreme droughts of the highest magnitude were recorded around the 1970s and 1990s and
that there were indications that this would continue in the future. Results also identified sub-regions characterized by a
different level of drought risks in the region. The study concluded by making appropriate policy recommendations for effective
water management for the region.
KeywordsSudano-Sahelian region-Drought severity-Nigeria-Water-Policies-SPI-PCA

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