Articles | Volume 23, issue 24
https://doi.org/10.5194/acp-23-15507-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-15507-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Impact of the Guinea coast upwelling on atmospheric dynamics, precipitation and pollutant transport over southern West Africa
Gaëlle de Coëtlogon
CORRESPONDING AUTHOR
Laboratoire Atmosphères, Observations Spatiales, IPSL, Sorbonne Université, Paris, 75252, France
Adrien Deroubaix
Laboratoire de Météorologie Dynamique, Ecole Polytechnique, IPSL, Ecole Normale Supérieure, Université Paris-Saclay, Sorbonne Université, CNRS, Palaiseau, 91128, France
IUP, Institute of Environmental Physics, University of Bremen, 28359 Bremen, Germany
Cyrille Flamant
Laboratoire Atmosphères, Observations Spatiales, IPSL, Sorbonne Université, Paris, 75252, France
Laurent Menut
Laboratoire de Météorologie Dynamique, Ecole Polytechnique, IPSL, Ecole Normale Supérieure, Université Paris-Saclay, Sorbonne Université, CNRS, Palaiseau, 91128, France
Marco Gaetani
Classe di Scienze, Tecnologie e Società, Scuola Universitaria Superiore IUSS, Pavia, 27100, Italy
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Cited
14 citations as recorded by crossref.
- Guinean landing surveys of Bentfin devil rays add insight into threatened elasmobranch catch S. Kashey et al. https://doi.org/10.1007/s10641-025-01764-x
- Beyond Borders: Why Africa Matters for a Geospatially Connected Planet [Space-Agencies] A. Atijosan https://doi.org/10.1109/MGRS.2026.3672046
- Synergistic evolution and mechanism analysis of pollution and carbon reduction: A cross-basin perspective from China Y. Sun et al. https://doi.org/10.1016/j.jclepro.2026.147629
- Carbon dioxide removals by tropical moist forests offset most land-use emissions across 18 Afrotropical countries W. Verbiest et al. https://doi.org/10.1038/s43247-026-03710-w
- Driving processes of seasonal cooling in the northern Gulf of Guinea coastal upwelling E. Djorwe et al. https://doi.org/10.1016/j.rsma.2026.105196
- Uncertainties in highresmip models in simulating rainfall over West Africa based on the choice of reference data K. Yamoah et al. https://doi.org/10.1007/s00704-026-06021-4
- Influence of Barents Sea Ice in May on the West African Summer Monsoon and its possible mechanisms A. Datti et al. https://doi.org/10.1016/j.atmosres.2026.108983
- Modeling diurnal Temperature-Rainfall relationships under multicollinearity using PLS-SEM: A case study of Ghana I. Osei et al. https://doi.org/10.1371/journal.pone.0351942
- Urban Pollution Burden in Sub-Saharan African (SSA) Cities: Characterizing PM2.5, PM10, and Black Carbon in Two Contrasting Environments in Accra, Ghana J. Nimo et al. https://doi.org/10.1021/acsestair.5c00469
- Predictability of Summer (July-September) Extreme Precipitation Days over West Africa during 1982-2022 Y. Forosani et al. https://doi.org/10.4236/gep.2025.134005
- Effects of local mesoscale circulations on PM2.5 and O3 migration and transformation over the riverine and mountainous regions T. Zhou et al. https://doi.org/10.1007/s10661-025-14902-w
- Using Machine Learning Models to Predict Daily PM<sub>10</sub> Concentration in the Wet Savanna of Lamto Station in Côte d’Ivoire T. N’Datchoh et al. https://doi.org/10.4236/ojap.2025.144006
- Tracing carbonaceous aerosols through trace gas–aerosol relationships in urban pollution plumes A. Deroubaix et al. https://doi.org/10.1038/s41612-026-01456-y
- A Synthesis of Compound Drought in Africa: Mechanisms, Hotspots, Impacts, and Future Projections O. Adeyeri https://doi.org/10.3390/w18091040
14 citations as recorded by crossref.
- Guinean landing surveys of Bentfin devil rays add insight into threatened elasmobranch catch S. Kashey et al. https://doi.org/10.1007/s10641-025-01764-x
- Beyond Borders: Why Africa Matters for a Geospatially Connected Planet [Space-Agencies] A. Atijosan https://doi.org/10.1109/MGRS.2026.3672046
- Synergistic evolution and mechanism analysis of pollution and carbon reduction: A cross-basin perspective from China Y. Sun et al. https://doi.org/10.1016/j.jclepro.2026.147629
- Carbon dioxide removals by tropical moist forests offset most land-use emissions across 18 Afrotropical countries W. Verbiest et al. https://doi.org/10.1038/s43247-026-03710-w
- Driving processes of seasonal cooling in the northern Gulf of Guinea coastal upwelling E. Djorwe et al. https://doi.org/10.1016/j.rsma.2026.105196
- Uncertainties in highresmip models in simulating rainfall over West Africa based on the choice of reference data K. Yamoah et al. https://doi.org/10.1007/s00704-026-06021-4
- Influence of Barents Sea Ice in May on the West African Summer Monsoon and its possible mechanisms A. Datti et al. https://doi.org/10.1016/j.atmosres.2026.108983
- Modeling diurnal Temperature-Rainfall relationships under multicollinearity using PLS-SEM: A case study of Ghana I. Osei et al. https://doi.org/10.1371/journal.pone.0351942
- Urban Pollution Burden in Sub-Saharan African (SSA) Cities: Characterizing PM2.5, PM10, and Black Carbon in Two Contrasting Environments in Accra, Ghana J. Nimo et al. https://doi.org/10.1021/acsestair.5c00469
- Predictability of Summer (July-September) Extreme Precipitation Days over West Africa during 1982-2022 Y. Forosani et al. https://doi.org/10.4236/gep.2025.134005
- Effects of local mesoscale circulations on PM2.5 and O3 migration and transformation over the riverine and mountainous regions T. Zhou et al. https://doi.org/10.1007/s10661-025-14902-w
- Using Machine Learning Models to Predict Daily PM<sub>10</sub> Concentration in the Wet Savanna of Lamto Station in Côte d’Ivoire T. N’Datchoh et al. https://doi.org/10.4236/ojap.2025.144006
- Tracing carbonaceous aerosols through trace gas–aerosol relationships in urban pollution plumes A. Deroubaix et al. https://doi.org/10.1038/s41612-026-01456-y
- A Synthesis of Compound Drought in Africa: Mechanisms, Hotspots, Impacts, and Future Projections O. Adeyeri https://doi.org/10.3390/w18091040
Saved (final revised paper)
Latest update: 22 Oct 2026
Short summary
Using a numerical atmospheric model, we found that cooling sea surface temperatures along the southern coast of West Africa in July cause the “little dry season”. This effect reduces humidity and pollutant transport inland, potentially enhancing West Africa's synoptic and seasonal forecasting.
Using a numerical atmospheric model, we found that cooling sea surface temperatures along the...
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