Determination of seasonal rainfall variability, onset and cessation in semi-arid Tharaka district, Kenya

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dc.contributor.authorMakokha, G. L.
dc.contributor.authorShisanya, C.A.
dc.contributor.authorMakokha, G. L.
dc.contributor.authorTraore, P. S.
dc.contributor.authorLodoun, T.
dc.contributor.authorSako, A.
dc.date.accessioned2014-01-15T12:04:50Z
dc.date.available2014-01-15T12:04:50Z
dc.date.issued2012
dc.descriptionDOI 10.1007/s00704-011-0544-3en_US
dc.description.abstractThe study quantified rainfall variability for March-May (MAM) and October-December (OND) seasons in Tharaka district, Kenya. The parameters analysed were inter-annual variability of seasonal rainfall, onset and cessation using daily rainfall data in three agro-ecological zones' stations. Percentage mean cumulative method was used to determine onset and cessation, and seasonal variability was estimated using rainfall variability indices. Although both seasons are highly variable, OND has been persistently below mean over time while MAM shows high within-season variability. Despite the near uniformity in the mean onset and cessation dates, the former is highly variable on an inter-annual scale. The two rainfall seasons are inherently dissimilar and therefore require specific cropping in agro-ecological zone LM4 and LM4-5. It is possible that farmers in IL5 are missing an opportunity by under-utilising MAM rainfall. The results should be incorporated in implications of climate variability and vulnerability assessment in semi-arid Tharaka district.en_US
dc.identifier.citationTheoretical & Applied Climatology;May2012, Vol. 108 Issue 3/4, p479en_US
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/8568
dc.language.isoenen_US
dc.publisherTheoretical & Applied Climatologyen_US
dc.subjectrain & rainfallen_US
dc.subjectseasonsen_US
dc.subjectarid regionsen_US
dc.subjectenvironmental indicatorsen_US
dc.subjectecological zonesen_US
dc.titleDetermination of seasonal rainfall variability, onset and cessation in semi-arid Tharaka district, Kenyaen_US
dc.typeArticleen_US
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