Paper
28 February 2002 Retrieval of trace species profiles using balloon-borne occultation spectra
M. N. Eremenko, S. Payan, Claude Camy-Peyret, Mikhail Yu. Kataev, Artur A. Mitsel
Author Affiliations +
Proceedings Volume 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; (2002) https://doi.org/10.1117/12.458425
Event: Eighth Joint International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2001, Irkutsk, Russian Federation
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.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. N. Eremenko, S. Payan, Claude Camy-Peyret, Mikhail Yu. Kataev, and Artur A. Mitsel "Retrieval of trace species profiles using balloon-borne occultation spectra", Proc. SPIE 4678, Eighth International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, (28 February 2002); https://doi.org/10.1117/12.458425
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KEYWORDS
Absorption

Algorithm development

Databases

Chlorine

Spectroscopy

Atmospheric sensing

Remote sensing

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