Simultaneous Measurements of Atmospheric Composition and Airglow Emission Brightness Obtained by Spaceborne Stellar Occultation Experiments

Details Simultaneous Measurements of Atmospheric Composition and Airglow Emission Brightness Obtained by Spaceborne Stellar Occultation Experiments Simultaneous Measurements of Atmospheric Composition and Airglow Emission Brightness Obtained by Spaceborne Stellar Occultation Experiments

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsa31a..11y&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SA31A-11

Physics

0300 Atmospheric Composition And Structure, 0310 Airglow And Aurora, 0394 Instruments And Techniques

Scientific paper

A new approach to optical remote sensing of the Earth's atmosphere using a combination of extinctive and refractive stellar occultation measurements is presented. By simultaneously measuring both the refraction and extinction of the starlight, the composition-dependent extinction measurements can more accurately probe the Earth's lower atmosphere where refraction effects are significant. The technique is demonstrated using data from the Ultraviolet and Visible Imagers and Spectrographic Imagers (UVISI) on the Midcourse Space Experiment (MSX) satellite, and quality of the retrieved ozone (~15-100 km), molecular oxygen (~40-250 km), pressure, and temperature profiles will be presented. Because of the nature of the observational geometry, spectral radiances of various airglow emissions along the same observational line-of-sight could also be simultaneously measured. The implication of combined composition measurements from stellar occultation and airglow emissions for the study of atmospheric photochemistry will be discussed.

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