Understanding the Impacts of Climate Change in the Tana River Basin, Kenya
| Autor: | Aditya Sood, Matthew McCartney, Nishchitha Sandeepana Silva, Lal Muthuwatta, Alfred Opere |
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| Rok vydání: | 2018 |
| Předmět: |
lcsh:GE1-350
geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Soil and Water Assessment Tool lcsh:QE1-996.5 0208 environmental biotechnology Drainage basin Climate change Representative Concentration Pathways 02 engineering and technology General Medicine Groundwater recharge Structural basin 01 natural sciences 020801 environmental engineering lcsh:Geology Water resources Hydrology (agriculture) Environmental science Water resource management lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | Proceedings of the International Association of Hydrological Sciences, Vol 379, Pp 37-42 (2018) |
| ISSN: | 2199-899X |
| Popis: | In the Tana River Basin in Kenya, six Regional Circulation Models (RCMs) simulating two Representative Concentration Pathways (RCPs) (i.e., 4.5 and 8.5) were used as input to the Soil and Water Assessment Tool (SWAT) model to determine the possible implications for the hydrology and water resources of the basin. Four hydrological characteristics – water yield, groundwater recharge, base flow and flow regulation – were determined and mapped throughout the basin for three 30-year time periods: 2020–2049, 2040–2069 and 2070–2099. Results were compared with a baseline period, 1983–2011. All four hydrological characteristics show steady increases under both RCPs for the entire basin but with considerable spatial heterogeneity and greater increases under RCP 8.5 than RCP 4.5. The results have important implications for the way water resources in the basin are managed. It is imperative that water managers and policy makers take into account the additional challenges imposed by climate change in operating built infrastructure. |
| Databáze: | OpenAIRE |
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