Articles | Volume 25, issue 12
https://doi.org/10.5194/acp-25-6121-2025
https://doi.org/10.5194/acp-25-6121-2025
Research article
 | 
20 Jun 2025
Research article |  | 20 Jun 2025

Cold pools mediate mesoscale adjustments of trade-cumulus fields to changes in cloud droplet number concentration

Pouriya Alinaghi, Fredrik Jansson, Daniel A. Blázquez, and Franziska Glassmeier

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Cited articles

Albrecht, B. A.: Aerosols, Cloud Microphysics, and Fractional Cloudiness, Science, 245, 1227–1230, https://doi.org/10.1126/science.245.4923.1227, 1989. a, b
Alinaghi, P., Janssens, M., Choudhury, G., Goren, T., Siebesma, A. P., and Glassmeier, F.: Shallow cumulus cloud fields are optically thicker when they are more clustered, Q. J. Roy. Meteor. Soc., 150, 3566–3577, https://doi.org/10.1002/qj.4783, 2024a. a
Alinaghi, P., Jansson, F., A. Blázquez, D., and Glassmeier, F.: Datasets and the movie for the manuscript “Cold pools mediate mesoscale adjustments of trade-cumulus fields to changes in cloud-droplet number concentration”, Zenodo [data set], https://doi.org/10.5281/zenodo.13868738, 2024b. a
Alinaghi, P., Siebesma, A. P., Jansson, F., Janssens, M., and Glassmeier, F.: External Drivers and Mesoscale Self-Organization of Shallow Cold Pools in the Trade-Wind Regime, J. Adv. Model. Earth Sy., 17, e2024MS004540, https://doi.org/10.1029/2024MS004540, 2025. a, b, c, d, e, f, g, h, i, j, k, l, m
Bellouin, N., Quaas, J., Gryspeerdt, E., Kinne, S., Stier, P., Watson-Parris, D., Boucher, O., Carslaw, K. S., Christensen, M., Daniau, A.-L., Dufresne, J.-L., Feingold, G., Fiedler, S., Forster, P., Gettelman, A., Haywood, J. M., Lohmann, U., Malavelle, F., Mauritsen, T., McCoy, D. T., Myhre, G., Mülmenstädt, J., Neubauer, D., Possner, A., Rugenstein, M., Sato, Y., Schulz, M., Schwartz, S. E., Sourdeval, O., Storelvmo, T., Toll, V., Winker, D., and Stevens, B.: Bounding global aerosol radiative forcing of climate change, Rev. Geophys., 58, e2019RG000660, https://doi.org/10.1029/2019RG000660, 2020. a
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Short summary
Shallow clouds in the trades are a major source of uncertainty in climate projections. These clouds organize into striking mesoscale patterns that are exactly what climate models lack. This study explores the origin of such patterns and investigates how variations in microscale properties control them. The importance of microscale effects is compared to that of large-scale forcing on the mesoscale organization of trade-cumulus fields.
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