Hydroclimatic extremes in the Limpopo river Basin, South Africa, under changing climate

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dc.contributor.author Botai, Christina M.
dc.contributor.author Botai, Joel Ongego
dc.contributor.author Zwane, Nosipho N.
dc.contributor.author Hayombe, Patrick
dc.contributor.author Wamiti, Eric K.
dc.contributor.author Makgoale, Thabo
dc.contributor.author Murambadoro, Miriam D.
dc.contributor.author Adeola, Abiodun Morakinyo
dc.contributor.author Ncongwane, Katlego P.
dc.contributor.author De Wit, Jaco P.
dc.contributor.author Mengistu, Michael G.
dc.contributor.author Tazvinga, Henerica
dc.date.accessioned 2021-10-04T12:05:57Z
dc.date.available 2021-10-04T12:05:57Z
dc.date.issued 2020-11-24
dc.description.abstract This research study evaluated the projected future climate and anticipated impacts on water-linked sectors on the transboundary Limpopo River Basin (LRB) with a focus on South Africa. Streamflow was simulated from two CORDEX-Africa regional climate models (RCMs) forced by the 5th phase of the Coupled Model Inter-Comparison Project (CMIP5) Global Climate Models (GCMs), namely, the CanESM2m and IPSL-CM5A-MR climate models. Three climate projection time intervals were considered spanning from 2006 to 2099 and delineated as follows: current climatology (2006–2035), near future (2036–2065) and end of century future projection (2070–2099). Statistical metrics derived from the projected streamflow were used to assess the impacts of the changing climate on water-linked sectors. These metrics included streamflow trends, low and high flow quantile probabilities, the Standardized Streamflow Index (SSI) trends and the proportion (%) of dry and wet years, as well as drought monitoring indicators. Based on the Mann-Kendall (MK) trend test, the LRB is projected to experience reduced streamflow in both the near and the distant future. The basin is projected to experience frequent dry and wet conditions that can translate to drought and flash floods, respectively. In particular, a high proportion of dry and a few incidences of wet years are expected in the basin in the future. In general, the findings of this research study will inform and enhance climate change adaptation and mitigation policy decisions and implementation thereof, to sustain the livelihoods of vulnerable communities. en_ZA
dc.description.department Geography, Geoinformatics and Meteorology en_ZA
dc.description.librarian am2021 en_ZA
dc.description.sponsorship This research is part of the on-going project no. C2019/2020-00017, titled “Climate Change and Water Security: Developmental Perspectives for Water-Linked Sectors in a Future Climate for Africa”, funded by the Water Research Commission (WRC) of South Africa. en_ZA
dc.description.uri http://www.mdpi.com/journal/water en_ZA
dc.identifier.citation Botai, C.M., Botai, J.O., Zwane, N.N. et al. 2020, 'Hydroclimatic extremes in the Limpopo river Basin, South Africa, under changing climate', Water, vol. 12, no. 3299, pp. 1-20. en_ZA
dc.identifier.issn 2073-4441
dc.identifier.uri http://hdl.handle.net/2263/82035
dc.language.iso en en_ZA
dc.publisher MDPI en_ZA
dc.rights © 2020 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. en_ZA
dc.subject Streamflow en_ZA
dc.subject Mann-Kendall trend en_ZA
dc.subject SSI en_ZA
dc.subject Drought en_ZA
dc.subject Water-linked sectors en_ZA
dc.subject Climate change en_ZA
dc.subject Limpopo River Basin (LRB) en_ZA
dc.subject Regional climate models (RCMs) en_ZA
dc.subject Global climate models (GCMs) en_ZA
dc.title Hydroclimatic extremes in the Limpopo river Basin, South Africa, under changing climate en_ZA
dc.type Article en_ZA


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