ITEM VIEW

An investigation into the evidence of seasonal rainfall pattern shifts in the Western Cape, South Africa

dc.contributor.authorDu Plessis, J. A.en_ZA
dc.contributor.authorSchloms, B.en_ZA
dc.date.accessioned2018-10-23T14:21:16Z
dc.date.available2018-10-23T14:21:16Z
dc.date.issued2017-12
dc.identifier.citationDu Plessis, J. A. & Schloms, B. 2017. An investigation into the evidence of seasonal rainfall pattern shifts in the Western Cape, South Africa. Journal of the South African Institution of Civil Engineering, 59(4):47-55, doi:10.17159/2309-8775/2017/v59n4a5
dc.identifier.issn2309-8775 (online)
dc.identifier.issn1021-2019 (print)
dc.identifier.otherdoi:10.17159/2309-8775/2017/v59n4a5
dc.identifier.urihttp://hdl.handle.net/10019.1/104596
dc.descriptionCITATION: Du Plessis, J. A. & Schloms, B. 2017. An investigation into the evidence of seasonal rainfall pattern shifts in the Western Cape, South Africa. Journal of the South African Institution of Civil Engineering, 59(4):47-55, doi:10.17159/2309-8775/2017/v59n4a5.
dc.descriptionThe original publication is available at http://www.scielo.org.za
dc.description.abstractENGLISH ABSTRACT: Climate change is a highly contentious topic in the modern world. There is much evidence to indicate that climatic shifts and extreme weather anomalies are taking place globally, in some places more than others. This paper presents the findings on research to determine whether shifts in seasonal rainfall patterns are indeed already visible in historical rainfall data in the Western Cape of South Africa. The paper aims to provide some baseline information which can stimulate further research in this field. Different analytical methods were formulated to investigate the relationships between daily rainfall indices over a set timescale. Data was collected from the South African Weather Service (SAWS) in order to accumulate 20 rainfall stations, each with at least 100 years of historical daily rainfall data. Statistical analysis, linear trend line distributions, time lag comparisons, cumulative distributions, moving average plots and autocorrelation relationships were applied to the data. The results of the analysis indicated that (1) the rainfall season undergoes fluctuations of wetter and drier years (approximately 20-year cycles), (2) the South Coast region exhibits a shift towards a longer rainfall season, and in contrast the Mediterranean region is shifting to a shorter rainfall season when linear trend lines were analysed, and (3) the moving average plots showed only isolated seasonal shifts at the boundary months.en_ZA
dc.description.urihttp://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192017000400005
dc.format.extent9 pages : illustrations, mapsen_ZA
dc.language.isoen_ZAen_ZA
dc.publisherSouth African Institution of Civil Engineering
dc.subjectRainfall fluctuationsen_ZA
dc.subjectClimatic changesen_ZA
dc.subjectAnomalies, Rainfall -- Western Cape (South Africa)en_ZA
dc.titleAn investigation into the evidence of seasonal rainfall pattern shifts in the Western Cape, South Africaen_ZA
dc.typeArticleen_ZA
dc.description.versionPublisher's version
dc.rights.holderAuthors retain copyright


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

ITEM VIEW