Articles | Volume 18, issue 19
https://doi.org/10.5194/acp-18-14623-2018
© Author(s) 2018. 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-18-14623-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
12 Oct 2018
Research article |
| 12 Oct 2018
| 12 Oct 2018
Time-dependent entrainment of smoke presents an observational challenge for assessing aerosol–cloud interactions over the southeast Atlantic Ocean
Department of Atmospheric Sciences, University of Washington, Seattle, Washington, USA
Amie Dobracki
Department of Oceanography, University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
Steffen Freitag
Department of Oceanography, University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
Jennifer D. Small Griswold
Department of Atmospheric Sciences, University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
Ashley Heikkila
Department of Atmospheric Sciences, University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
Steven G. Howell
Department of Oceanography, University of Hawai'i at Mānoa, Honolulu, Hawai'i, USA
Mary E. Kacarab
School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA
James R. Podolske
NASA Ames Research Center, Moffett Field, California, USA
Pablo E. Saide
Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, California, USA
National Center for Atmospheric Research, Boulder, Colorado, USA
Robert Wood
Department of Atmospheric Sciences, University of Washington, Seattle, Washington, USA
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- On the relationship between cloud water composition and cloud droplet number concentration A. MacDonald et al. 10.5194/acp-20-7645-2020
- Anthropogenic emissions from South Asia reverses the aerosol indirect effect over the northern Indian Ocean S. Jose et al. 10.1038/s41598-020-74897-x
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- A satellite-based analysis of semi-direct effects of biomass burning aerosols on fog and low-cloud dissipation in the Namib Desert A. Mass et al. 10.5194/acp-25-491-2025
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- A meteorological overview of the ORACLES (ObseRvations of Aerosols above CLouds and their intEractionS) campaign over the southeastern Atlantic during 2016–2018: Part 1 – Climatology J. Ryoo et al. 10.5194/acp-21-16689-2021
- Modeled and observed properties related to the direct aerosol radiative effect of biomass burning aerosol over the southeastern Atlantic S. Doherty et al. 10.5194/acp-22-1-2022
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- Impacts of long-range transport of aerosols on marine-boundary-layer clouds in the eastern North Atlantic Y. Wang et al. 10.5194/acp-20-14741-2020
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- Spatiotemporal Heterogeneity of Aerosol and Cloud Properties Over the Southeast Atlantic: An Observational Analysis I. Chang et al. 10.1029/2020GL091469
- Effects of Biomass Burning on Stratocumulus Droplet Characteristics, Drizzle Rate, and Composition A. Hossein Mardi et al. 10.1029/2019JD031159
- Intercomparison of airborne and surface-based measurements during the CLARIFY, ORACLES and LASIC field experiments P. Barrett et al. 10.5194/amt-15-6329-2022
Latest update: 03 Jul 2025
Short summary
Smoke from Africa can mix into clouds over the southeast Atlantic and create new droplets, which brightens the clouds, reflects more sunlight, and thus cools the region. Using aircraft data from a NASA field campaign, we find that cloud properties are correlated with smoke as expected when the smoke is below the clouds but not when smoke is above the clouds because it takes several days for clouds to mix smoke downward. We recommend methods that can track clouds as they move for future studies.
Smoke from Africa can mix into clouds over the southeast Atlantic and create new droplets, which...
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