Variable oxygen airglow on Venus as a probe of atmospheric dynamics

Details Variable oxygen airglow on Venus as a probe of atmospheric dynamics Variable oxygen airglow on Venus as a probe of atmospheric dynamics

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.359..516a&link_type=abstract

Nature (ISSN 0028-0836), vol. 359, no. 6395, p. 516-519.

Computer Science

28

Airglow, Atmospheric Circulation, Oxygen, Venus Atmosphere, Atmospheric Composition, Carbon Dioxide, Emission Spectra, Image Analysis, Infrared Spectroscopy, Mesosphere

Scientific paper

High-resolution images are presented of an oxygen airglow that arises during downwelling at an altitude of about 95 km on the nightside of Venus. Oxygen atoms are formed by photolysis of CO2 on the sunlit hemisphere and are then transported to the nightside, where they recombine during descent. The newly formed molecular oxygen emits radiation to produce the airglow. Localized, short-lived regions of emission and neighboring dark areas are observed, demonstrating the potential of such observations to constrain atmospheric dynamics at this little-studied and important altitude in the Venusian mesosphere.

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