Aerosol Mixing State: Measurements, Modeling, and Impacts

N. Riemer, A. P. Ault, M. West, R. L. Craig, J. H. Curtis

Research output: Contribution to journalReview articlepeer-review


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.

Original languageEnglish (US)
Pages (from-to)187-249
Number of pages63
JournalReviews of Geophysics
Issue number2
StatePublished - Jun 2019


  • aerosol climate impacts
  • aerosol measurements
  • aerosol mixing state
  • aerosol modeling

ASJC Scopus subject areas

  • Geophysics


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