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Impact of Climate Change on Water Resources in the Kilombero Catchment in Tanzania

Näschen, Kristian; Diekkrüger, Bernd; Leemhuis, Constanze; Seregina, Larisa; van der Linden, Roderick

Abstract:
This article illustrates the impact of potential future climate scenarios on water quantity in time and space for an East African floodplain catchment surrounded by mountainous areas. In East Africa, agricultural intensification is shifting from upland cultivation into the wetlands due to year-round water availability and fertile soils. These advantageous agricultural conditions might be hampered through climate change impacts. Additionally, water-related risks, like droughts and flooding events, are likely to increase. Hence, this study investigates future climate patterns and their impact on water resources in one production cluster in Tanzania. To account for these changes, a regional climate model ensemble of the Coordinated Regional Downscaling Experiment (CORDEX) Africa project was analyzed to investigate changes in climatic patterns until 2060, according to the RCP4.5 (representative concentration pathways) and RCP8.5 scenarios. The semi-distributed Soil and Water Assessment Tool (SWAT) was utilized to analyze the impacts on water resources according to all scenarios. Modeling results indicate increasing temperatures, especia ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000094127
Veröffentlicht am 02.05.2019
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Forschungsbereich Troposphäre (IMK-TRO)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 2073-4441
KITopen-ID: 1000094127
Erschienen in Water
Band 11
Heft 4
Seiten Article: 859
Vorab online veröffentlicht am 24.04.2019
Schlagworte SWAT model; climate change; scenario analysis; hydrology; return probabilities; hydrological extremes
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