Ion‐aerosol‐cloud processes in the lower atmosphere

  title={Ion‐aerosol‐cloud processes in the lower atmosphere},
  author={R. G. Harrison and Kenneth S. Carslaw},
  journal={Reviews of Geophysics},
Natural terrestrial radioactivity and cosmic ray ionization lead to the formation of air ions and charged aerosol particles even away from regions of active charge separation, such as in thunderstorms. The natural electrified state of the atmosphere has been studied for over a century; however, the effect of ionization on the physical properties of aerosols and clouds has rarely been studied in its own right except in thunderstorms. Here we review the status of our understanding of atmospheric… 

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