Articles | Volume 22, issue 18
https://doi.org/10.5194/acp-22-12113-2022
© Author(s) 2022. 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-22-12113-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
| 
19 Sep 2022
Research article | Highlight paper |
| 19 Sep 2022
| 19 Sep 2022
Cloud adjustments from large-scale smoke–circulation interactions strongly modulate the southeastern Atlantic stratocumulus-to-cumulus transition
Michael S. Diamond
CORRESPONDING AUTHOR
Cooperative Institute for Research in Environmental Sciences (CIRES),
University of Colorado, Boulder, CO, USA
NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, USA
Pablo E. Saide
Department of Atmospheric and Oceanic Sciences, University of
California, Los Angeles, CA, USA
Institute of the Environment and Sustainability, University of
California, Los Angeles, CA, USA
Paquita Zuidema
Rosenstiel School of Marine and Atmospheric Science, University of
Miami, Miami, FL, USA
Andrew S. Ackerman
NASA Goddard Institute for Space Studies, New York, NY, USA
Sarah J. Doherty
Cooperative Institute for Climate, Ocean and Ecosystem Studies, University of Washington, Seattle, WA, USA
Department of Atmospheric Sciences, University of Washington, Seattle,
WA, USA
Ann M. Fridlind
NASA Goddard Institute for Space Studies, New York, NY, USA
Hamish Gordon
Engineering Research Accelerator and Center for Atmospheric Particle
Studies, Carnegie Mellon University, Pittsburgh, PA, USA
Calvin Howes
Department of Atmospheric and Oceanic Sciences, University of
California, Los Angeles, CA, USA
Jan Kazil
Cooperative Institute for Research in Environmental Sciences (CIRES),
University of Colorado, Boulder, CO, USA
NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, USA
Takanobu Yamaguchi
Cooperative Institute for Research in Environmental Sciences (CIRES),
University of Colorado, Boulder, CO, USA
NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, USA
Jianhao Zhang
Cooperative Institute for Research in Environmental Sciences (CIRES),
University of Colorado, Boulder, CO, USA
NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, USA
Graham Feingold
NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, USA
Robert Wood
Department of Atmospheric Sciences, University of Washington, Seattle,
WA, USA
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Cited
11 citations as recorded by crossref.
- Cloud Mesoscale Cellular Classification and Diurnal Cycle Using a Convolutional Neural Network (CNN) M. Segal Rozenhaimer et al. 10.3390/rs15061607
- The radiative impact of biomass burning aerosols on dust emissions over Namibia and the long-range transport of smoke observed during the Aerosols, Radiation and Clouds in southern Africa (AEROCLO-sA) campaign C. Flamant et al. 10.5194/acp-24-4265-2024
- Effects of smoke on marine low clouds and radiation during 2020 western United States wildfires L. Dong et al. 10.1016/j.atmosres.2024.107295
- Comparing the simulated influence of biomass burning plumes on low-level clouds over the southeastern Atlantic under varying smoke conditions A. Baró Pérez et al. 10.5194/acp-24-4591-2024
- Aerosol-induced closure of marine cloud cells: enhanced effects in the presence of precipitation M. Christensen et al. 10.5194/acp-24-6455-2024
- Satellite-based analysis of top of atmosphere shortwave radiative forcing trend induced by biomass burning aerosols over South-Eastern Atlantic C. Jouan & G. Myhre 10.1038/s41612-024-00631-3
- Impact of biomass burning aerosols (BBA) on the tropical African climate in an ocean–atmosphere–aerosol coupled climate model M. Mallet et al. 10.5194/acp-24-12509-2024
- Biomass-burning smoke's properties and its interactions with marine stratocumulus clouds in WRF-CAM5 and southeastern Atlantic field campaigns C. Howes et al. 10.5194/acp-23-13911-2023
- 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
- Projecting Stratocumulus Transitions on the Albedo—Cloud Fraction Relationship Reveals Linearity of Albedo to Droplet Concentrations T. Goren et al. 10.1029/2022GL101169
- Aerosol first indirect effect of African smoke at the cloud base of marine cumulus clouds over Ascension Island, southern Atlantic Ocean M. de Graaf et al. 10.5194/acp-23-5373-2023
11 citations as recorded by crossref.
- Cloud Mesoscale Cellular Classification and Diurnal Cycle Using a Convolutional Neural Network (CNN) M. Segal Rozenhaimer et al. 10.3390/rs15061607
- The radiative impact of biomass burning aerosols on dust emissions over Namibia and the long-range transport of smoke observed during the Aerosols, Radiation and Clouds in southern Africa (AEROCLO-sA) campaign C. Flamant et al. 10.5194/acp-24-4265-2024
- Effects of smoke on marine low clouds and radiation during 2020 western United States wildfires L. Dong et al. 10.1016/j.atmosres.2024.107295
- Comparing the simulated influence of biomass burning plumes on low-level clouds over the southeastern Atlantic under varying smoke conditions A. Baró Pérez et al. 10.5194/acp-24-4591-2024
- Aerosol-induced closure of marine cloud cells: enhanced effects in the presence of precipitation M. Christensen et al. 10.5194/acp-24-6455-2024
- Satellite-based analysis of top of atmosphere shortwave radiative forcing trend induced by biomass burning aerosols over South-Eastern Atlantic C. Jouan & G. Myhre 10.1038/s41612-024-00631-3
- Impact of biomass burning aerosols (BBA) on the tropical African climate in an ocean–atmosphere–aerosol coupled climate model M. Mallet et al. 10.5194/acp-24-12509-2024
- Biomass-burning smoke's properties and its interactions with marine stratocumulus clouds in WRF-CAM5 and southeastern Atlantic field campaigns C. Howes et al. 10.5194/acp-23-13911-2023
- 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
- Projecting Stratocumulus Transitions on the Albedo—Cloud Fraction Relationship Reveals Linearity of Albedo to Droplet Concentrations T. Goren et al. 10.1029/2022GL101169
- Aerosol first indirect effect of African smoke at the cloud base of marine cumulus clouds over Ascension Island, southern Atlantic Ocean M. de Graaf et al. 10.5194/acp-23-5373-2023
Latest update: 18 Nov 2024
Executive editor
Large quantities of seasonal smoke are produced by agricultural burning in Southern Africa between the months of June and October. Between 2016 and 2018A a series of large field campaigns, ORACLES, CLARIFY, and LASIC, targeted study of the atmospheric impacts of these plumes. This study synthesizes these measurements with numerical simulations to investigate how biomass burning plumes blown westward affect a well-known transition from solid stratocumulus to broken cumulus over the Atlantic Ocean. The dynamics of the cloud transition are complex, and there are many possible ways that aerosols and clouds can interact. This study is particularly notable for considering not just how smoke particles directly modify the microphysical properties of clouds through interactions in the atmospheric boundary layer, but also how they impact clouds indirectly by absorbing solar radiation above the cloud deck. A surprising finding is that microphysical interactions have only a minimal impact on cloud transitions. Instead, the breakup of stratocumulus clouds decks is substantially slowed by the absorption of sunlight by smoke plumes above clouds and its subsequent impact on the vertical temperature and moisture profile of the atmosphere.
Large quantities of seasonal smoke are produced by agricultural burning in Southern Africa...
Short summary
Smoke from southern Africa blankets the southeast Atlantic from June-October, overlying a major transition region between overcast and scattered clouds. The smoke affects Earth's radiation budget by absorbing sunlight and changing cloud properties. We investigate these effects in regional climate and large eddy simulation models based on international field campaigns. We find that large-scale circulation changes more strongly affect cloud transitions than smoke microphysical effects in our case.
Smoke from southern Africa blankets the southeast Atlantic from June-October, overlying a major...
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