Articles | Volume 22, issue 8
https://doi.org/10.5194/acp-22-5701-2022
https://doi.org/10.5194/acp-22-5701-2022
Research article
 | 
02 May 2022
Research article |  | 02 May 2022

Smoke in the river: an Aerosols, Radiation and Clouds in southern Africa (AEROCLO-sA) case study

Cyrille Flamant, Marco Gaetani, Jean-Pierre Chaboureau, Patrick Chazette, Juan Cuesta, Stuart John Piketh, and Paola Formenti

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Cited articles

AEROCLO: AEROCLO Operating Center – day: 2022-May-02, http://aeroclo.sedoo.fr/, last access: 27 April 2022. 
Annegarn, H. J., Otter, L., Swap, R. J., and Scholes, R. J.: Southern Africa's ecosystem in a test-tube: A perspective on the Southern African Regional Science Initiative (SAFARI 2000), S. Afr. J. Sci., 98, 111–113, 2002. 
Bergstrom, R. W., Pilewskie, P., Russell, P. B., Redemann, J., Bond, T. C., Quinn, P. K., and Sierau, B.: Spectral absorption properties of atmospheric aerosols, Atmos. Chem. Phys., 7, 5937–5943, https://doi.org/10.5194/acp-7-5937-2007, 2007. 
Bruneau, J., Pelon, J., Blouzon, F., Spatazza, J., Genau, P., Buchholtz, G., Amarouche, N., Abchiche, A., and Aouji, O.: 355-nm high spectral resolution airborne lidar LNG: system description and first results, Appl. Optics, 54, 8776–8785, https://doi.org/10.1364/AO.54.008776, 2015. 
Chaboureau, J.-P. and Bechtold, P.: A simple cloud parameterization from cloud resolving model data: Theory and application, J. Atmos. Sci., 59, 2362–2372, https://doi.org/10.1175/1520-0469(2002)059<2362:ASCPDF>2.0.CO;2, 2002. 
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Short summary
Rivers of smoke extend from tropical southern Africa towards the Indian Ocean during the winter fire season, controlled by the interaction of tropical easterly waves, and westerly waves at mid latitudes. During the AEROCLO-sA field campaign in 2017, a river of smoke was directly observed over Namibia. In this paper, the evolution and atmospheric drivers of the river of smoke are described, and the role of a mid-latitude cut-off low in lifting the smoke to the upper troposphere is highlighted.
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