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Proceedings Paper

Retrieval of trace species profiles using balloon-borne occultation spectra
Author(s): M. N. Eremenko; S. Payan; Claude Camy-Peyret; Mikhail Yu. Kataev; Artur A. Mitsel
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Paper Abstract

Remote sensing of atmospheric state parameters (such as temperature and mixing ratio profiles, trace gas column amounts) requires fast and accurate radiative transfer calculations. For the retrieval of a large number of species, a set of micro-windows containing single lines of the target species is generally used. However, spectral signatures of several species like CFCs are often covering large micro-windows and a forward calculation in wide spectral region must be performed to access the concentration of these species in the atmosphere using remote sensing techniques. If line-by-line calculation of the absorption cross section is used, the calculation time is important and not dedicated to operational analysis of spectral atmospheric measurements. A new retrieval algorithm has been developed at LPMA to determine vertical profiles in such conditions. In order to decrease the calculation time, pre-calculated absorption cross section look-up tables are used, allowing quick generation of absorption cross section without significant loss of accuracy. The simulation of the measurements on wide spectral region is very sensitive to instrumental characteristics like spectral variation of the instrument line shape or accurate calibration of the spectra and the corresponding modeling problems will be carefully examined.

Paper Details

Date Published: 28 February 2002
PDF: 6 pages
Proc. SPIE 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, (28 February 2002); doi: 10.1117/12.458425
Show Author Affiliations
M. N. Eremenko, Tomsk Univ. of Automated Control Systems and Radioelectronics (Russia)
LPMA-CNRS (France)
S. Payan, LPMA CNRS (France)
Claude Camy-Peyret, LPMA CNRS (France)
Mikhail Yu. Kataev, Tomsk Univ. of Automated Control Systems and Radioelectronics (Russia)
Artur A. Mitsel, Tomsk Univ. of Automated Control Systems and Radioelectronics (Russia)


Published in SPIE Proceedings Vol. 4678:
Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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