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Article Dans Une Revue (Article De Synthèse) Atmospheric Chemistry and Physics Discussions Année : 2023

Pollution slightly enhances atmospheric cooling by low-level clouds in tropical West Africa

Cyrille Flamant

Résumé

Reflection of solar radiation by tropical low-level clouds has an important cooling effect on climate and leads to decreases in surface temperatures. Still, the effect of pollution on ubiquitous tropical continental low-level clouds and the investigation of the related impact on atmospheric cooling rates are poorly constrained by in-situ observations and modelling, in particular during the West African summer monsoon season. Here, we present comprehensive in-situ measurements of 20 microphysical properties of low-level clouds over tropical West Africa, measured with the DLR aircraft Falcon 20 during the DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa) campaign in June and July 2016.

Domaines

Climatologie
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licence : CC BY NC - Paternité - Pas d'utilisation commerciale

Dates et versions

hal-03872992 , version 1 (26-11-2022)
hal-03872992 , version 2 (01-08-2023)

Identifiants

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Valerian Hahn, Ralf Meerkötter, Christiane Voigt, Sonja Gisinger, Daniel Sauer, et al.. Pollution slightly enhances atmospheric cooling by low-level clouds in tropical West Africa. Atmospheric Chemistry and Physics Discussions, In press, pp.(discussion). ⟨10.5194/acp-2022-795⟩. ⟨hal-03872992v1⟩
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