Satellite observations of daytime and nighttime ozone in the mesosphere and lower thermosphere

M. Kaufmann, O. A. Gusev, K. U. Grossmann, F. J. Martín-Torres, D. R. Marsh, A. A. Kutepov

研究成果査読

53 被引用数 (Scopus)

抄録

The global distribution of mesospheric and lower thermospheric ozone 9.6 μm infrared emissions was measured by the Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) experiment during two Space Shuttle missions in November 1994 and August 1997. The radiances measured by CRISTA have been inverted to O3 number densities in the 50-95 km range by using a nonlocal thermodynamic equilibrium model. A detailed sensitivity study of retrieved O3 number densities has been carried out. The ozone abundance profiles show volume mixing ratios of 1-2 ppmv at the stratopause, 0.5 ppmv or less around 80 km, and typically 1 ppmv during daytime and 10 ppmv during nighttime at the secondary maximum. The agreement with other experiments is typically better than 25%. The global distribution of upper mesospheric ozone shows significant latitudinal gradients and an enhancement in the equatorial upper mesosphere. At the polar night terminator a third ozone maximum is observed. Three-dimensional model results indicate that the latitudinal gradients are significantly influenced by solar tides.

本文言語English
ページ(範囲)ACH 9-1 ACH 9-14
ジャーナルJournal of Geophysical Research Atmospheres
108
9
DOI
出版ステータスPublished - 5月 16 2003
外部発表はい

ASJC Scopus subject areas

  • 林業
  • 水圏科学
  • 土壌科学
  • 水の科学と技術
  • 地表過程
  • 地球化学および岩石学
  • 地球物理学
  • 海洋学
  • 古生物学
  • 生態学
  • 宇宙惑星科学
  • 地球惑星科学(その他)
  • 大気科学

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