Investigating changes over time of annual rainfall in Zimbabwe

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dc.contributor.authorMazvimavi, Dominic
dc.date.accessioned2023-02-07T09:33:56Z
dc.date.available2023-02-07T09:33:56Z
dc.date.issued2010
dc.description.abstractThere is increasing concern in southern Africa about the possible decline of rainfall as a result of global warming. Some studies concluded that average rainfall in Zimbabwe had declined by 10% or 100 mm during the last 100 years. This paper investigates the validity of the assumption that rainfall is declining in Zimbabwe. Time series of annual rainfall, and total rainfall for (a) the early part of the rainy season, October-November-December (OND), and (b) the mid to end of the rainy season, January-FebruaryMarch (JFM) are analysed for the presence of trends using the Mann-Kendall test, and for the decline or increase during years with either high or low rainfall using quantile regression analysis. The Pettitt test has also been utilized to examine the possible existence of change or break-points in the rainfall time series. The analysis has been done for 40 rainfall stations with records starting during the 1892– 1940 period and ending in 2000, and representative of all the rainfall regions.en_US
dc.identifier.citationMazvimavi, D. (2010). Investigating changes over time of annual rainfall in Zimbabwe. Hydrology and Earth System Sciences, 14, 2671–2679. 10.5194/hess-14-2671-2010en_US
dc.identifier.issn1607-7938
dc.identifier.uri10.5194/hess-14-2671-2010
dc.identifier.urihttp://hdl.handle.net/10566/8373
dc.language.isoenen_US
dc.publisherCopernicus Publicationsen_US
dc.subjectClimate changeen_US
dc.subjectDroughten_US
dc.subjectGlobal warmingen_US
dc.subjectZimbabween_US
dc.titleInvestigating changes over time of annual rainfall in Zimbabween_US
dc.typeArticleen_US

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