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Satellite observations of daytime and nighttime ozone in the mesosphere and lower thermosphere
Department of Physics, University of Wuppertal , Research Center Jülich.
Department of Physics, University of Wuppertal.
Department of Physics, University of Wuppertal.
Analytical Services and Materials Inc., Hampton.ORCID iD: 0000-0001-6479-2236
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2003 (English)In: Journal of Geophysical Research, ISSN 0148-0227, E-ISSN 2156-2202, Vol. 108, no 9Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2003. Vol. 108, no 9
Keyword [en]
CRISTA, Lower thermosphere, Mesosphere, Non-LTE, Ozone, ROSE
National Category
Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-5127DOI: 10.1029/2002JD002800Scopus ID: 346639333Local ID: 3254915a-868b-4511-8fa8-ce4d2a8beafcOAI: oai:DiVA.org:ltu-5127DiVA: diva2:978001
Note
Upprättat; 2003; 20150119 (ninhul)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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