Assessing future climate trends and their impact on different fractured rock aquifers in Northern Togo
نویسندگان
چکیده
Abstract Water resources in the West African Sudan Savannah are concentrated fractured crystalline and sedimentary rock aquifers. Due to their low storage, these aquifers vulnerable changes climate. This study assesses future temperature precipitation trends Koumfab watershed of northern Togo. The impact climate on surface water two types is also investigated. A fully integrated hydrologic model Northern Togo used change resources. Bias-corrected from four regional models (RCMs) greenhouse emissions scenarios as forcings for model. Climate projections RCMs indicate a rise (1.4 −5.5 °C) average temperature, control (1971–2000) period (2031–2060). Projected follows contrasting with some predicting an increase (by up 14%) mean annual precipitation, while others predict decline −14%). These will have noticeable effect groundwater levels stream flow. indicates all by 1.4−5.7 m. not uniformly distributed sandstone aquifer be times greater than that granodiorite/migmatite aquifer. flow at outlet shows increasing (59 -332%) decreasing (−39 −100%).
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ژورنال
عنوان ژورنال: Journal of Water and Climate Change
سال: 2022
ISSN: ['2040-2244', '2408-9354']
DOI: https://doi.org/10.2166/wcc.2022.264