Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa

The Zambezi River basin is the fourth largest basin in Africa and the largest in southern Africa, comprising 5% of the total area of the continent. The basin is extremely vulnerable to climate change effects due to its highly variable climate. The purpose of this study was to evaluate the impact of...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	George Z. Ndhlovu, Yali E. Woyessa
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	catchment hydrology global climate model high uncertainty streamflow simulation strong consensus Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/297c0f8390a241f9a0ae3b2562ca4eba
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:297c0f8390a241f9a0ae3b2562ca4eba
record_format	dspace
spelling	oai:doaj.org-article:297c0f8390a241f9a0ae3b2562ca4eba2021-11-11T19:57:40ZEvaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa10.3390/w132131142073-4441https://doaj.org/article/297c0f8390a241f9a0ae3b2562ca4eba2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3114https://doaj.org/toc/2073-4441The Zambezi River basin is the fourth largest basin in Africa and the largest in southern Africa, comprising 5% of the total area of the continent. The basin is extremely vulnerable to climate change effects due to its highly variable climate. The purpose of this study was to evaluate the impact of climate change on streamflow in one of the sub-basins, the Kabombo basin. The multi- global climate model projections were used as input to the Soil Water Assessment Tool (SWAT) hydrological model for simulation of streamflow under RCP 4.5 and RCP 8.5 climate scenarios. The model predicted an annual streamflow increase of 85% and 6% for high uncertainty and strong consensus, respectively, under RCP 8.5. The model predicted a slightly reduced annual streamflow of less than 3% under RCP 4.5. The majority of simulations indicated that intra-annual and inter-annual streamflow variability will increase in the future for RCP 8.5 while it will reduce for the RCP 4.5 scenario. The predicted high and moderate rise in streamflow for RCP 8.5 suggests the need for adaptation plans and mitigation strategies. In contrast, the streamflow predicted for RCP 4.5 indicates that there may be a need to review the current management strategies of the water resources in the basin.George Z. NdhlovuYali E. WoyessaMDPI AGarticlecatchment hydrologyglobal climate modelhigh uncertaintystreamflow simulationstrong consensusHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3114, p 3114 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	catchment hydrology global climate model high uncertainty streamflow simulation strong consensus Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	catchment hydrology global climate model high uncertainty streamflow simulation strong consensus Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 George Z. Ndhlovu Yali E. Woyessa Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
description	The Zambezi River basin is the fourth largest basin in Africa and the largest in southern Africa, comprising 5% of the total area of the continent. The basin is extremely vulnerable to climate change effects due to its highly variable climate. The purpose of this study was to evaluate the impact of climate change on streamflow in one of the sub-basins, the Kabombo basin. The multi- global climate model projections were used as input to the Soil Water Assessment Tool (SWAT) hydrological model for simulation of streamflow under RCP 4.5 and RCP 8.5 climate scenarios. The model predicted an annual streamflow increase of 85% and 6% for high uncertainty and strong consensus, respectively, under RCP 8.5. The model predicted a slightly reduced annual streamflow of less than 3% under RCP 4.5. The majority of simulations indicated that intra-annual and inter-annual streamflow variability will increase in the future for RCP 8.5 while it will reduce for the RCP 4.5 scenario. The predicted high and moderate rise in streamflow for RCP 8.5 suggests the need for adaptation plans and mitigation strategies. In contrast, the streamflow predicted for RCP 4.5 indicates that there may be a need to review the current management strategies of the water resources in the basin.
format	article
author	George Z. Ndhlovu Yali E. Woyessa
author_facet	George Z. Ndhlovu Yali E. Woyessa
author_sort	George Z. Ndhlovu
title	Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
title_short	Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
title_full	Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
title_fullStr	Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
title_full_unstemmed	Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa
title_sort	evaluation of streamflow under climate change in the zambezi river basin of southern africa
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/297c0f8390a241f9a0ae3b2562ca4eba
work_keys_str_mv	AT georgezndhlovu evaluationofstreamflowunderclimatechangeinthezambeziriverbasinofsouthernafrica AT yaliewoyessa evaluationofstreamflowunderclimatechangeinthezambeziriverbasinofsouthernafrica
_version_	1718431338180116480

Evaluation of Streamflow under Climate Change in the Zambezi River Basin of Southern Africa

Ejemplares similares