HR: 1330h
AN: A42C-0781    [PDF]
TI: Retrieval of atmospheric ozone and nitrogen dioxide vertical distribution from SAGE III limb scattering measurement
AU: * Rault, D
EM: d.f.rault@larc.nasa.gov
AF: NASA Langley Research Center, Langley Blvd, Hampton, va 23681 United States
AU: Loughman, R
EM: loughman@wrabbit.gsfc.nasa.gov
AF: Hampton University, Hampton Blvd, Hampton, Va 23665 United States
AB: SAGE III has been making a series of Earth limb radiance measurements over the past year. The paper will present an analysis and a discussion of the data. Since SAGE III was not designed to operate in this mode, instrument issues such as stray light and altitude registration, need special attention, and methods to deal with these issues will be first described. The methodology used to retrieve gas density profile will be explained. Two algorithms are used, the first one being based on Flitner's triplet method, and the second one relying on spectral fitting. Sample of retrieved ozone and nitrogen dioxide vertical profiles will be presented and discussed. Comparison of the retrieved profiles with measurements from other methods will be shown for validation: ozone sonde, lidar, other space borne instruments. The results will show the potential of SAGE III to operate in limb scattering mode and provide accurate determination of atmospheric ozone and nitrogen dioxide vertical distribution.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0340 Middle atmosphere--composition and chemistry
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2003 Fall Meeting