Articles | Volume 11, issue 4
Research article
11 Dec 2020
Research article |  | 11 Dec 2020

Daytime low-level clouds in West Africa – occurrence, associated drivers, and shortwave radiation attenuation

Derrick K. Danso, Sandrine Anquetin, Arona Diedhiou, Kouakou Kouadio, and Arsène T. Kobea

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Cited articles

Adejuwon, J. O. and Odekunle, T. O.: Variability and the severity of the “Little Dry Season” in southwestern Nigeria, J. Climate, 19, 483–493,, 2006. 
Adler, B., Kalthoff, N., and Gantner, L.: Nocturnal low-level clouds over southern West Africa analysed using high-resolution simulations, Atmos. Chem. Phys., 17, 899–910,, 2017. 
Adler, B., Babić, K., Kalthoff, N., Lohou, F., Lothon, M., Dione, C., Pedruzo-Bagazgoitia, X., and Andersen, H.: Nocturnal low-level clouds in the atmospheric boundary layer over southern West Africa: an observation-based analysis of conditions and processes, Atmos. Chem. Phys., 19, 663–681,, 2019. 
Armstrong, S. and Hurley, W. G.: A new methodology to optimise solar energy extraction under cloudy conditions, Renew. Energy, 35, 780–787,, 2010. 
Babić, K., Adler, B., Kalthoff, N., Andersen, H., Dione, C., Lohou, F., Lothon, M., and Pedruzo-Bagazgoitia, X.: The observed diurnal cycle of low-level stratus clouds over southern West Africa: a case study, Atmos. Chem. Phys., 19, 1281–1299,, 2019a. 
Short summary
The atmospheric and surface conditions that exist during the occurrence of daytime low-level clouds (LLCs) and their influence on solar radiation were investigated in West Africa. During the monsoon season, these LLCs are linked to high moisture flux driven by strong southwesterly winds from the Gulf of Guinea and significant background moisture levels. Their occurrence leads to a strong reduction in the incoming solar radiation and has large impacts on the surface energy budget.
Final-revised paper