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Proceedings Paper

Star-pointing spectrometer for measurements of atmospheric ozone
Author(s): Liisa Oikarinen; Heikki K. Saari; Kari Rainio; Jussi Graeffe; Heikki Astola
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Paper Abstract

Optical measurement of the density of ozone and other atmospheric species at night is possible by using stars as light sources. The Technical Research Centre of Finland (VTT) has built a star-pointing spectrometer, which records stellar spectra by a 2D CCD-array. The spectrometer has a 'slitless' design, so it can measure the absolute intensity level of a stellar spectrum attenuated by the atmosphere. A spectral inversion method designed for the satellite-based instrument GOMOS is applied for constituent retrieval form stellar spectra measured on ground. Analysis of simulated measurements shows that when averaging over one night the total ozone column can be measured by the VTT spectrometer at an accuracy of 2-3 percent.

Paper Details

Date Published: 31 October 1996
PDF: 12 pages
Proc. SPIE 2830, Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research II, (31 October 1996); doi: 10.1117/12.256135
Show Author Affiliations
Liisa Oikarinen, Finnish Meteorological Institute (Finland)
Heikki K. Saari, Technical Research Ctr. of Finland (Finland)
Kari Rainio, Technical Research Ctr. of Finland (Finland)
Jussi Graeffe, Technical Research Ctr. of Finland (Finland)
Heikki Astola, Technical Research Ctr. of Finland (Finland)


Published in SPIE Proceedings Vol. 2830:
Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research II
Paul B. Hays; Jinxue Wang, Editor(s)

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