Impact of Climate Change on Groundwater Resources in the Klela Basin, Southern Mali

Investigations of groundwater resources in order to understand aquifer system behavior are vital to the inhabitants of the Klela Basin, Mali, because groundwater is the only permanent water resource and is used for drinking water and irrigation. Due to climate change, this vital resource is being th...

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Bibliographic Details
Published inHydrology Vol. 3; no. 2; p. 17
Main Authors Toure, Adama, Diekkrüger, Bernd, Mariko, Adama
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.06.2016
Subjects
Aquifer systems
Aquifers
Calibration
Climate change
Climatology
Computer simulation
Demographics
Drinking water
Earth
EARTH model
Environmental impact
Geology
Groundwater
Groundwater levels
Groundwater recharge
Hydrogeology
Hydrologic data
Hydrology
Integrated approach
Irrigation water
Klela basin
PMWIN
Sandstone
Sedimentary rocks
Soil
Soil moisture
southern Mali
Studies
Surface water
Water resources
Water shortages
Water supply
Queensland Australia
Aachen Germany
Australia
Mali
United States > US
Germany
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Summary:Investigations of groundwater resources in order to understand aquifer system behavior are vital to the inhabitants of the Klela Basin, Mali, because groundwater is the only permanent water resource and is used for drinking water and irrigation. Due to climate change, this vital resource is being threatened. Therefore, MODFLOW was applied in this study to simulate groundwater dynamics. The aim of this study was to evaluate the impact of climate change on groundwater resources in the Klela basin using the RCP4.5 (Representative Concentration Scenario 4.5 W/m2) climate scenario. Climatological, geological, hydrogeological, hydraulic and demographic data were collected and used as model input data. Groundwater recharge was estimated to be approximately 165.3 mm/year using the EARTH (Extended model for Aquifer Recharge and soil moisture Transport through the unsaturated Hardrock) model. Recharge was then used as groundwater model input. The sandstone aquifer in the study area was simulated in steady and transient conditions. The results showed that hydraulic conductivity values varied from 1.1 to 13.9 m/day. The model was used for scenario quantification after model calibration and verification using three different piezometer data sets. The results of the simulated MODFLOW model showed a decrease in groundwater levels over time.
ISSN:2306-5338
2306-5338
DOI:10.3390/hydrology3020017