Modelling of groundwater recharge in the megacity of Lagos, Nigeria: preliminary results using WetSpass-M

Olabode, Oluwaseun Franklin; Comte, Jean-Christophe

doi:https://doi.org/10.5194/adgeo-59-53-2022

Articles | Volume 59

https://doi.org/10.5194/adgeo-59-53-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/adgeo-59-53-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 59

20 Dec 2022

| 20 Dec 2022

Modelling of groundwater recharge in the megacity of Lagos, Nigeria: preliminary results using WetSpass-M

Oluwaseun Franklin Olabode and Jean-Christophe Comte

Model code and software

A distributed monthly water balance model: formulation and application on Black Volta Basin (https://github.com/WetSpass/WetSpass-M) K. Abdollahi, I. Bashir, B. Verbeiren, M. R. Harouna, A. Van Griensven, M. Huysmans, and O. Batelaan https://doi.org/10.1007/s12665-017-6512-1

Short summary

The processes which dictate replenishment of coastal aquifer systems under demographic pressures in a fast-growing megacity, Lagos, Nigeria are yet to be quantified and understood. The recharge estimates and trends provided from this study show that over the last two decades, water demand has overtaken the recharge rate over the urban agglomeration and is now rapidly converging towards the total aquifer recharge rate.