Condensation nuclei events at 30 km and possible influences of solar cosmic rays

@article{Hofmann1983CondensationNE,
  title={Condensation nuclei events at 30 km and possible influences of solar cosmic rays},
  author={David J. Hofmann and James M. Rosen},
  journal={Nature},
  year={1983},
  volume={302},
  pages={511-514}
}
Two recent observations have provided the basis for study of a relationship between solar activity and the formation of small particles in the Earth's atmosphere: the discovery of annual increases of condensation nuclei (CN) at 30 km (refs 1–3) and the detection of sulphuric acid molecules in large negative ion clusters in the 25–35-km altitude region4–7. These observations have now led us to formulate and test a model wherein CN are formed in a ‘polar cloud chamber’ supersaturated with… CONTINUE READING