Abstract
Earth's atmosphere, like all planetary atmospheres, is constantly ionized by cosmic rays. Close to the surface, natural radioactivity is the dominant source of ionization. This article describes the generation and physical characteristics of atmospheric cluster-ions, including their size, composition, transport, and electrical properties, and gives an overview of relevant measurement technologies. The role of cluster-ions in weather and climate through modulating atmospheric particle formation and a range of other electrical effects is summarized. Nomenclature and categorization of atmospheric cluster-ions, and the properties of ions in the indoor environment are also briefly discussed.
Original language | English |
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Title of host publication | Encyclopedia of Atmospheric Sciences |
Subtitle of host publication | Second Edition |
Publisher | Elsevier Inc. |
Pages | 9-13 |
Number of pages | 5 |
ISBN (Electronic) | 9780123822260 |
ISBN (Print) | 9780123822253 |
DOIs | |
Publication status | Published - 1 Jan 2014 |
Keywords
- Aerosol
- Charge
- Condensation nuclei
- Cosmic rays
- Electric conduction
- Ion attachment
- Ion mobility
- Ion recombination
- Ion spectra
- Nucleation