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dc.contributor.authorAwange, Joseph
dc.contributor.authorAluoch, J.
dc.contributor.authorOgallo, L.
dc.contributor.authorOmulo, M.
dc.contributor.authorOmondi, P.
dc.date.accessioned2017-01-30T15:10:59Z
dc.date.available2017-01-30T15:10:59Z
dc.date.created2008-11-12T23:32:24Z
dc.date.issued2007
dc.identifier.citationAwange, J. L. and Aluoch, J. and Ogallo, L. and Omulo, M. and Omondi, P. 2007. Frequency and severity of drought in the Lake Victoria region (Kenya) and its effects on food security. Climate Research 33 (2): 135-142.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/43937
dc.identifier.doi10.3354/cr033135
dc.description.abstract

Using monthly and seasonal precipitation data for the period 1961 1999, we established drought frequency and severity in relation to food security in the Lake Victoria region in Kenya. We used percentiles together with time series analysis for a 40 yr period, with the lower 25% of the quartile designated as the threshold values that indicate drought years. We then used percentiles and Drought Severity Index (DSI) to ascertain the physical conditions and severity of the drought years. The 1980s and 1990s were drier decades (the 1980s had more drought events than any other decade considered in this study), with lower negative anomalies in comparison to the 1960s and 1970s, and the number of drought events and their severity have been increasing in recent years(especially during the 1990s). In general, drought affects the crop planting seasons of March to May (MAM) and September to November (SON), and leads to increased food imports in the years following the drought. If the present trends persist, the Lake Victoria region will face not only more severe drought events, but also significant reductions in food security.

dc.publisherInter-Research
dc.subjectLake Victoria Food Security Climate Drought Environment
dc.titleFrequency and severity of drought in the Lake Victoria region (Kenya) and its effects on food security
dc.typeJournal Article
dcterms.source.volume33
dcterms.source.number2
dcterms.source.startPage135
dcterms.source.endPage142
dcterms.source.titleClimate Research
curtin.note

Copyright © 2007 Inter-Research.

curtin.departmentSpatial Sciences
curtin.identifierEPR-2202
curtin.accessStatusOpen access
curtin.facultyDivision of Resources and Environment
curtin.facultyDepartment of Spatial Sciences


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