Articles | Volume 24, issue 3
https://doi.org/10.5194/acp-24-1919-2024
https://doi.org/10.5194/acp-24-1919-2024
Research article
 | 
13 Feb 2024
Research article |  | 13 Feb 2024

Effects of intermittent aerosol forcing on the stratocumulus-to-cumulus transition

Prasanth Prabhakaran, Fabian Hoffmann, and Graham Feingold

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Cited articles

Ackerman, A. S., Stevens, B., Savic-Jovcic, V., Bretherton, C. S., Chlond, A., Golaz, J. C., Jiang, H., Khairoutdinov, M., Krueger, S. K., Lewellen, D. C., and Lock, A.: Large-eddy simulations of a drizzling, stratocumulus-topped marine boundary layer, Mon. Weather Rev., 137, 1083–1110, 2009. a
Ahlm, L., Jones, A., Stjern, C. W., Muri, H., Kravitz, B., and Kristjánsson, J. E.: Marine cloud brightening – as effective without clouds, Atmos. Chem. Phys., 17, 13071–13087, https://doi.org/10.5194/acp-17-13071-2017, 2017. a
Albrecht, B. A.: Aerosols, cloud microphysics, and fractional cloudiness, Science, 245, 1227–1230, 1989. a
Baker, M. B. and Charlson, R. J.: Bistability of CCN concentrations and thermodynamics in the cloud-topped boundary layer, Nature, 345, 142–145, 1990. a
Bretherton, C.: A conceptual model of the stratocumulus-trade-cumulus transition in the subtropical oceans, in: Proceedings of the 11th International Conference on Clouds and Precipitation, 17–21 August 1992, Montreal, PQ, Canada, International Commission on Clouds and Precipitation, vol. 1, 374–377, https://www.google.com/url?sa=t&rct=j&q=&esrc=s &source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjY9but3 aeEAxULxTgGHRhDBzEQFnoECA8QAQ&url=https%3A %2F%2Fwww.iamas.org%2Ficcp%2Fwp-content%2F uploads%2Fsites%2F3%2F2021%2F01%2F11th-Internation-Conference-on-Clouds-and-Precipitation-Proceedings-Vol-I.pdf&usg=AOvVaw0dh-5QnZxuc1yfjDzwZoXl&opi=89978449 (last access: 12 February 2024), 1992. a, b
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In this study, we explore the impact of deliberate aerosol perturbation in the northeast Pacific region using large-eddy simulations. Our results show that cloud reflectivity is sensitive to the aerosol sprayer arrangement in the pristine system, whereas in the polluted system it is largely proportional to the total number of aerosol particles injected. These insights would aid in assessing the efficiency of various aerosol injection strategies for climate intervention applications.
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