Potential new atmospheric sources and sinks of odd nitrogen: Sources involving the excited O2, and the N2O.O3 species

Details Potential new atmospheric sources and sinks of odd nitrogen: Sources involving the excited O2, and the N2O.O3 species Potential new atmospheric sources and sinks of odd nitrogen: Sources involving the excited O2, and the N2O.O3 species

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.2173p&link_type=abstract

Geophysical Research Letters, Volume 25, Issue 12, p. 2173-2176

Physics

4

Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry

Scientific paper

The NO and NO2 radicals play important roles in atmospheric chemistry. This paper, therefore, theoretically discusses the following speculations: (1) the O2(B3∑)+N2->2NO reaction, and perhaps the photoexcitation of the N2.O2 dimers (or collision complexes) by Herzberg band photons as well, may be potentially important atmospheric sources of odd-nitrogen, (2) there is a tantalizing potential for a substantive NOx production of the order of 1200NOxcm-3s-1 in the upper troposphere subject to certain condition, and (3) photodissociation of the possible N2O.O3 species in the 320 to 430 nm may be a non-trivial source of NOx in the upper troposphere. Experimental studies of these ideas are needed, due to their relevance in regional pollution and global change issues.

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