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Publication abstract: With oceans covering 71% of the Earth’s surface, sea spray aerosols (SSA) play an important role in the global radiative budget by acting as cloud condensation nuclei and ice nucleating particles. By acting as ice nucleating particles (INPs), SSA can affect the structure and properties of mixed-phase clouds by inducing freezing at warmer temperatures than the homogeneous freezing temperature. Climate models that incorporate marine INPs often assume that submicron SSA particles form INPs due to the fact they contain a higher fraction of organic mass. Here we show that supermicron SSA, produced using a natural breaking wave analogue, are the major source of INPs throughout the lifecycle of a phytoplankton bloom. Additionally, supermicron SSA are shown to be more efficient INPs than submicron SSA, suggesting ice active components are contained in these larger sea spray particles. NSF Center for Aerosol Impacts on Chemistry of the Environment (CAICE), a Center for Chemical Innovation (CHE-1801971). Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp) Mitts, Brock A.; Wang, Xiaofei; Lucero, Dolan D.; Beall, Charlotte M.; Deane, Grant B.; DeMott, Paul J.; Prather, Kimberly A. (2020). Data from: Importance of Supermicron Ice Nucleating Particles in Nascent Sea Spray. In Center for Aerosol Impacts on Chemistry of the Environment (CAICE). UC San Diego Library Digital Collections. https://doi.org/10.6075/J0GM85TV References: Wang, X., Deane, G. B., Moore, K. A., Ryder, O. S., Stokes, M. D., Beall, C. M., et al. (2017). The role of jet and film drops in controlling the mixing state of submicron sea spray aerosol particles. Proceedings of the National Academy of Sciences of the United States of America, 114(27), 6978–6983. https://doi.org/10.1073/pnas.1702420114
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Ice nucleation Sea spray aerosol (SSA) Supermicron Number site density