First model of negative ion composition in the troposphere

Details First model of negative ion composition in the troposphere First model of negative ion composition in the troposphere

Dec 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34.1229k&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 34, Dec. 1986, p. 1229-1239.

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15

Atmospheric Chemistry, Atmospheric Composition, Negative Ions, Troposphere, Mass Spectroscopy, Molecular Ions, Neutral Gases, Vertical Distribution

Scientific paper

A chemical model of negative ions in the troposphere (0-15 km) is presented. This model is an extension of the negative ion composition model in the lower stratosphere (Kawamoto and Ogawa, 1984) with some modifications. The computed result shows that the predominant ions are NO3(-)HNO3H2O below 10 km and NO3(-)(HNO3)2 above 10 km, and that the fractional abundance of cluster ions having an HSO4(-) core increases with height below 12 km and decreases with height above it. The ions having CO3(-) cores are at most 2 percent in fractional abundance. The other kinds of negative ions are far smaller in fractional abundance than the NO3(-), HSO4(-), and CO3(-) core ions. The result is compared with the two mass spectrometric observed results (Heitmann and Arnold, 1983; Perkins and Eisele, 1984). The problems on the tropospheric negative ions which arose are discussed.

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