Pure and Applied Geophysics

, Volume 106, Issue 1, pp 1281–1289 | Cite as

The nighttime distribution of ozone in the low-latitude mesosphere

  • R. G. Roble
  • P. B. Hays
Ozone Measurements from Rockets and Satellites

Abstract

The intensity of stars at wavelengths in the Hartley continuum region of ozone has been monitored by the University of Wisconsin stellar photometers aboard the OAO-2 satellite during occultation of the star by the earth's atmosphere. These occultation data have been used to determine the ozone number density profile at the occultation tangent point. The nighttime ozone number density profile has a bulge in its vertical profile with a peak of 1 to 3×108 cm−3 at approximately 83 km and a minimum near 75 km. The ozone number density at high altitudes varies by as much as a factor of 4, but does not show any clear seasonal variation or nighttime variation. The retrieved ozone number density profiles define a data envelope that is compared with other nighttime observations of the ozone number density profile and also the results of theoretical models.

Calculations are also presented that illustrate the difference in retrieving the bulge in the ozone number density profile from stellar and solar occultation data.

Keywords

Ozone Solar Disk Solar Occultation Lower Thermosphere Ozone Profile 

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Copyright information

© Birkhäuser Verlag 1973

Authors and Affiliations

  • R. G. Roble
    • 1
  • P. B. Hays
    • 2
  1. 1.National Center for Atmospheric ResearchBoulder
  2. 2.Department of Atmospheric and Oceanic SciencesUniversity of MichiganAnn Arbor

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