Investigation of Rainfall Variability over Kenya (1950-2012)

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dc.contributor.authorSagero, Philip O.
dc.contributor.authorShisanya, C.A.
dc.contributor.authorMakokha, George L.
dc.date.accessioned2020-01-15T06:53:04Z
dc.date.available2020-01-15T06:53:04Z
dc.date.issued2018
dc.descriptionResearch Articleen_US
dc.description.abstractThis study investigates the rainfall variability from 33 stations, for a period of 63 years (1950 – 2012) over Kenya. Coefficient of Variability and non-parametric Mann- Kendall test at 5% level of significance was used to assess the variability and trend, respectively. The Sen’s slope estimator was then used to find the magnitude of the changeover the time period. It was observed that October to December season had a high inter-annual variability, with most stations having greater than 50% of the Coefficient of Variation compared to March to May season, which had only 4 stations with over 50% Coefficient of Variation. Insignificant decreasing trend was noted during the March – May rains, while insignificant increasing trend in October – December rains. On a spatial scale, a negative trend was noted in the northern part of the country and the opposite condition was noted in western regions of the country, around Lake Victoria area. The results indicate a likelihood of negative impact on sectors of the economy that relay on rainfall, because of negative trend in March – May long rains, which accounts for most of rains received annually in Kenya. Although the October – December rains have an increasing trend, they are unreliable due to high inter-annual variability.en_US
dc.identifier.citationSagero, P.O., C.A. Shisanya and G.L. Makokha. 2018. Investigation of rainfall variability over Kenya (1950-2012). Journal of Environmental and Agricultural Sciences. 14: 01-15.en_US
dc.identifier.issn2313-8629
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/20041
dc.language.isoenen_US
dc.publisherJEASen_US
dc.subjectRainfallen_US
dc.subjectClimate changeen_US
dc.subjectTrend analysisen_US
dc.subjectMann-Kendallen_US
dc.subjectCoefficient of Variationen_US
dc.titleInvestigation of Rainfall Variability over Kenya (1950-2012)en_US
dc.typeArticleen_US
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