El Nino-induced drought impacts on reservoir water resources in South Africa

Show simple item record

dc.date.accessioned 2024-02-29T13:02:16Z
dc.date.available 2024-02-29T13:02:16Z
dc.date.issued 2024-02-23 en
dc.identifier.issn 2073-4433 en
dc.identifier.uri http://hdl.handle.net/20.500.11910/23028
dc.description.abstract ENSO phenomenon is associated with below average rainfall and influences the climate regime of southern Africa. With the advent of climate change, drought frequencies and magnitudes have worsened in the developing world and this in turn negatively impacts the natural environment and communities' livelihoods. This study evaluated the relationship between El Nino induced drought and reservoir water levels over the Albasini Dam Catchment (ADC) areas in Limpopo Province, South Africa. Standardised indices (i.e., SPI and SSI) were used to define drought events over the study area. Mann-Kendall and Sequential Mann-Kendall was used for trends analysis as well as correlation and wavelet coherence to evaluate the relationship between variables of interest. There exists a relationship between El Nino-induced drought event and reservoir water levels. This was shown by the correlation between drought indices and reservoir water levels with the coefficient of determination being stronger at the 12th timescale (i.e., 0.743 and 0.59) compared to the 6th timescale (i.e., 0.07 and 0.44) for both precipitation and streamflow indices, respectively. Wavelet analysis further showed that there existed a phased relationship between the two variables. Although there are other factors that may affect reservoir water resources, these study findings show that El Nino-induced drought also negatively affect water resources. Therefore, this study recommends the development of multidimensional and multiscale management strategies to minimize drought impacts and adaptation in the region. en
dc.format.medium Print en
dc.subject CLIMATE CHANGE en
dc.subject RESERVOIRS en
dc.subject LIMPOPO PROVINCE en
dc.subject WATER CONSERVATION en
dc.subject DROUGHTS en
dc.title El Nino-induced drought impacts on reservoir water resources in South Africa en
dc.type Journal Article en
dc.description.version Y en
dc.ProjectNumber N/A en
dc.Volume 15(3) en
dc.BudgetYear 2023/24 en
dc.ResearchGroup Equitable Education and Economies en
dc.SourceTitle Atmosphere en
dc.ArchiveNumber 9814296 en
dc.PageNumber Online en
dc.outputnumber 14953 en
dc.bibliographictitle Mathivha, F.I., Mabala, L., Matimolane , S. & Mbatha, N. (2024) El Nino-induced drought impacts on reservoir water resources in South Africa. Atmosphere. 15(3):Online. http://hdl.handle.net/20.500.11910/23028 en
dc.publicationyear 2024 en
dc.contributor.author1 Mathivha, F.I. en
dc.contributor.author2 Mabala, L. en
dc.contributor.author3 Matimolane , S. en
dc.contributor.author4 Mbatha, N. en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record