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Aerosol Mixing State: Measurements, Modeling, and Impacts

Nicole Riemer (University of Illinois Urbana-Champaign), Andrew P. Ault (University of Michigan), Matthew West (University of Illinois Urbana-Champaign), Rebecca L. Craig (College of Wooster, University of Michigan), Jeffrey H. Curtis (University of Illinois Urbana-Champaign)

Reviews of Geophysics
DOI: 10.1029/2018rg000615 (Earth and Planetary Sciences)
Licence : non indiquée (tous droits réservés)

Résumé : Abstract Atmospheric aerosols are complex mixtures of different chemical species, and individual particles exist in many different shapes and morphologies. Together, these characteristics contribute to the aerosol mixing state. This review provides an overview of measurement techniques to probe aerosol mixing state, discusses how aerosol mixing state is represented in atmospheric models at different scales, and synthesizes our knowledge of aerosol mixing state's impact on climate‐relevant properties, such as cloud condensation and ice nucleating particle concentrations, and aerosol optical properties. We present these findings within a framework that defines aerosol mixing state along with appropriate mixing state metrics to quantify it. Future research directions are identified, with a focus on the need for integrating mixing state measurements and modeling.

Publié le 21 Mar. 2019