Stakeholder-informed approach improves national modelling of water resources for a Sub-Saharan African basin

Hinton, R., Fridman, D. ORCID: https://orcid.org/0000-0003-3908-3571, Smilovic, M. ORCID: https://orcid.org/0000-0001-9651-8821, Willaarts, B.A. ORCID: https://orcid.org/0000-0001-6589-1543, Chunga, B., Banda, L., Macleod, K., Troldborg, M., & Kalin, R. (2025). Stakeholder-informed approach improves national modelling of water resources for a Sub-Saharan African basin. Journal of Hydrology: Regional Studies 60 e102574. 10.1016/j.ejrh.2025.102574.

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Abstract

Improving our understanding of groundwater resources is essential for effective management and sustainable development. Here, we apply a global hydrological model, the Community Water Model (CWatM, 5 arc minute resolution) with MODFLOW6 (5 km resolution), to gain understanding of Malawi’s understudied groundwater resources. The study applies semi-structured stakeholder interviews to inform simulation of water management in a data scarce context. Model simulation was validated against streamflow data for 35 rivers. Basin-wide scale model validation was undertaken by comparison with remote sensing observations of evapotranspiration, precipitation, and changes in total water storage (using GRACE Satellite data).

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