Theoretical interpretation of N2O5 measurements

Details Theoretical interpretation of N2O5 measurements Theoretical interpretation of N2O5 measurements

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18.1213t&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 18, July 1991, p. 1213-1216.

Physics

7

Atmospheric Chemistry, Nitrogen Dioxide, Nitrogen Oxides, Ozonometry, Reaction Kinetics, Atmospheric Composition, Balloon-Borne Instruments, Diurnal Variations, Infrared Radiometers, Photolysis

Scientific paper

Recent measurements by Webster et al. (1990) have confirmed quantitatively the chemistry controlling the nighttime decay of NO2. Simple equations describing the nighttime behavior of NO2 and N2O5 are presented here. With measurements of the nighttime ozone and NO2 concentrations, these equations can be used to predict the amount of N2O5 produced at any time during the night. In this way, the N2O5 nighttime emission measurement of Roscoe (1982), Kunde et al. (1988) and sunrise measurements of the ATMOS experiment are all used to test theory. The measurements are found to be both self consistent and confirm the present understanding of nighttime NO2 conversion to N2O5. The variation of N2O5 by a factor of two between measurements is found to be consistent with theory.

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