Assessing regional variation in yield from weathered basement aquifers in West Africa and modelling their future groundwater development and sustainability
Assessing regional variation in yield from weathered basement aquifers in West Africa and modelling their future groundwater development and sustainability
复制标题
评估西非风化基底含水层产量的区域差异并对其未来地下水开发和可持续性进行建模
DOI:
10.1007/s10040-023-02594-w
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发表时间:
2023
影响因子:
2.8
通讯作者:
Bianchi M
中科院分区:
文献类型:
--
作者:
Bianchi M
A data-driven modelling approach was applied to quantify the potential groundwater yield from weathered crystalline basement aquifers in West Africa, which are a strategic resource for achieving water and food security. To account for possible geological control on aquifer productivity, seven major geological domains were identified based on lithological, stratigraphic, and structural characteristics of the crystalline basement. Extensive data mining was conducted for the hydrogeological parameterisation that led to the identification of representative distributions of input parameters for numerical simulations of groundwater abstractions. These were calibrated to match distributions of measured yields for each domain. Calibrated models were then applied to investigate aquifer and borehole scenarios to assess groundwater productivity. Considering the entire region, modelling results indicate that approximately 50% of well-sited standard 60-m-deep boreholes could sustain yields exceeding 0.5 L/s, and 25% could sustain the yield required for small irrigation systems (> 1.0 L/s). Results also highlighted some regional differences in the ranges of productivities for the different domains, and the significance of the depth of the static water table and the lateral extent of aquifers across all geological domains. This approach can be applied to derive groundwater maps for the region and provide the quantitative information required to evaluate the potential of different designs of groundwater supply networks.
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DOI:
--
发表时间:
1992
期刊:
Geological Society Special Publication
影响因子:
--
作者:
J. Hazell;C. R. Cratchley;C. R. C. Jones
通讯作者:
C. R. C. Jones
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
D. Chardon;Violaine Chevillotte;A. Beauvais;G. Grandin;B. Boulangé
通讯作者:
B. Boulangé
影响因子:
4.8
作者:
J. Bowles;S. Suárez;H. Prichard;P. Fisher
通讯作者:
P. Fisher
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
C. Butt;A. Bristow
通讯作者:
A. Bristow
影响因子:
2.3
作者:
M. Tijani;O. Okunlola;Akinlolu F. Abimbola
通讯作者:
Akinlolu F. Abimbola