Twilight ozone measurement by solar occultation from AE 5

Details Twilight ozone measurement by solar occultation from AE 5 Twilight ozone measurement by solar occultation from AE 5

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977georl...4..434g&link_type=abstract

Geophysical Research Letters, vol. 4, Oct. 1977, p. 434-436.

Physics

1

Atmospheric Composition, Occultation, Ozonometry, Satellite Observation, Twilight Glow, Atmospheric Attenuation, Atmospheric Models, Backscattering, Explorer 55 Satellite, Optical Thickness, Solar Flux Density, Ultraviolet Radiation, Vertical Distribution

Scientific paper

The BUV on AE 5 was used for a solar occultation measurement of atmospheric ozone. An observation was carried out during the morning twilight near 5 deg N, December 17, 1976, at the fixed wavelength of 255.5 nm, and a profile between 49 and 82 km was obtained. The number densities determined by this measurement were 3.7 x 10 to the 10th cu cm at 50 km, 5.1 x 10 to the 9th at 60 km, 3.9 x 10 to the 8th at 70 km, and 3.0 x 10 to the 7th at 80 km. No evidence of a high altitude secondary maximum was found. These concentrations are between a factor of 4 and 20 smaller than those midnight results reported from a Copernicus measurement, and similar to the values from the Krueger-Minzer Mid-latitude Model above 55 km. These values may be as much as a factor of 2 less than the Krueger-Minzer model below 50.

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