Production of nitric oxide by lightning on Venus

Details Production of nitric oxide by lightning on Venus Production of nitric oxide by lightning on Venus

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..893l&link_type=abstract

Geophysical Research Letters, vol. 9, Aug. 1982, p. 893-896.

Physics

25

Atmospheric Chemistry, Lightning, Nitric Oxide, Venus Atmosphere, Environment Simulation, Photodissociation

Scientific paper

The first measurements of the production of nitric oxide (NO) by a laboratory discharge in a simulated Venus atmosphere are presented. The average NO yield over a range of energies was found to be 3.7 + or - 0.7 x 10 to the 15th molecules/joule. Simultaneous measurements of carbon monoxide (CO) resulting from the lightning-induced dissociation of carbon dioxide (CO2) indicated a CO yield of about 4 x 10 to the 17th molecules/joule. These measurements suggest that at and below cloud level, a region where solar ultraviolet radiation cannot penetrate, the dissociation of CO2 by lightning may be a significant source of oxygen atoms. Depending on the assumed value for the total energy dissipated by lightning on Venus, the production of NO by lightning may be a significant sink of atmospheric nitrogen over the history of Venus.

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