Mathematics – Logic
Scientific paper
Apr 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983angeo...1..149a&link_type=abstract
(European Geophysical Society and European Seismological Commission, Symposium on Ions in the Middle Atmosphere, Leeds, England,
Mathematics
Logic
3
Aeronomy, Atmospheric Chemistry, Negative Ions, Positive Ions, Stratosphere, Atmospheric Composition, Ion Recombination, Thermochemistry
Scientific paper
Current knowledge of the number density and nature of the charged species in the 10-50-km-altitude region is surveyed, with an emphasis on the findings of in situ experiments since about 1977. The bulk parameters of the stratospheric charged medium are considered in terms of ionization sources, ion sinks, and ion density. Altitude profiles of the different bulk parameters as measured by different methods are shown. Ion-mobility data based on Gerdian-condensor measurements, theoretical models of stratospheric ion chemistry, and direct mass-spectrometer determinations of positive and negative ionic species are discussed. Tables of tentative species identifications and sample profiles are provided. The applicability of these findings in neutral-trace-gas analysis and as diagnostic tools for the estimation of ion-molecule-reaction thermochemical parameters is shown. Future work will require reduction of balloon-pollution and low-counting-statistics effects and more precise mass-spectrometer calibration.
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