Articles | Volume 385
https://doi.org/10.5194/piahs-385-97-2024
https://doi.org/10.5194/piahs-385-97-2024
Post-conference publication
 | 
18 Apr 2024
Post-conference publication |  | 18 Apr 2024

Assessment of climate change impact and comparison of downscaling approaches: a case study in a semi-arid river basin

Yali E. Woyessa

Cited articles

African Ministers' Council on Water (AMCOW): Water Security and climate resilient development: Technical Background Document, African Ministers’ Council on Water, https://www.gwp.org/globalassets/global/toolbox/references /technical-background-document-water-security-and-climate-resilient-development-wacdep-amcow-2012.pdf (last access: 10 September 2017), 2012. 
Arnold, J. G., Srinivasan, R., Muttiah, R. S., and Williams, J. R.: Large-area hydrologic modelling and assessment: Part I. Model development, Journal of American Water Resources Association, 34, 73–89, 1998. 
CORDEX (Coordinated Regional Downscaling Experiment): Regional Climate Change simulations for CORDEX domains, CORDEX [data set], https://cordex.org/data-access/regional-climate-change-simulations-for-cordex-domains/, last access: 4 October 2017. 
Cousino, L. K., Becker, R. H., and Zmijewski, K. A.: Modelling the effects of climate change on water, sediment, and nutrient yields from the Maumee River watershed, Journal of Hydrology: Regional Studies, 4, 762–775, 2015. 
DEA (Department of Environmental Affairs): Long-Term Adaptation Scenarios Flagship Research Programme (LTAS) for South Africa, Summary for Policy-Makers, Pretoria, South Africa, https://www.dws.gov.za/documents/Other/Strategic Plan/NWRS2-Final-email-version.pdf (last access: 20 July 2021), 2013. 
Download
Short summary
Rapid population increase, industrialization and pollution are putting a strain on available and diminishing freshwater. Recent climate projections suggest a drop of up to 10 % in precipitation in most of Southern Africa by 2050. The simulation results revealed that there will be a reduction of rainfall and water yield. These expected decrease in rainfall coupled with increase in evapotranspiration are going to be the two major drivers in exacerbating the existing problem of water scarcity.