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Sea spray aerosol concentration modulated by sea surface temperature

Liu, S., C. Liu, K. Froyd, G. Schill, D. Murphy, T. P. Bui, J. Dean-Day, B. Weinzierl, M. Dollner, G. S. Diskin, G. Chen, and R. Gao (2021), Sea spray aerosol concentration modulated by sea surface temperature, Proc. Natl. Acad. Sci., doi:10.1073/pnas.2020583118.

Natural aerosols in pristine regions form the baseline used to evaluate the impact of anthropogenic aerosols on climate. Sea spray aerosol (SSA) is a major component of natural aerosols. Despite its importance, the abundance of SSA is poorly constrained. It is generally accepted that wind-driven wave breaking is the principle governing SSA production. This mechanism alone, however, is insufficient to explain the variability of SSA concentration at given wind speed. other laboratory (12, 21–23) and field measurements (3, 5) suggest that SSA production increases monotonically with water temperature. Furthermore, recent observations in the remote Atlantic Ocean shows that increasing SST enhances the modal mean diameter of SSA (24). On the other hand, model simulations have demonstrated that incorporating SST into SSA source The role of other parameters, such as sea surface temperature (SST),

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Tropospheric Composition Program (TCP)