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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 22, issue 3
Ann. Geophys., 22, 819–828, 2004
https://doi.org/10.5194/angeo-22-819-2004
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 22, 819–828, 2004
https://doi.org/10.5194/angeo-22-819-2004
© Author(s) 2004. This work is distributed under
the Creative Commons Attribution 3.0 License.

  19 Mar 2004

19 Mar 2004

Seasonal variations of O2 atmospheric and OH(6−2) airglowand temperature at mid-latitudes from SATI observations

M. J. López-González1, E. Rodríguez1, R. H. Wiens2, G. G. Shepherd3, S. Sargoytchev3, S. Brown3, M. G. Shepherd3, V. M. Aushev4, J. J. López-Moreno1, R. Rodrigo1, and Y.-M. Cho3 M. J. López-González et al.
  • 1Instituto de Astrofísica de Andalucía, CSIC, P.O. Box 3004, E-18080 Granada, Spain
  • 2Department of Physics, University of Asmara, Eritrea
  • 3Centre for Research in Earth and Space Science, York University, 4700 Keele St., Toronto, Ontario M3J 1P3, Canada
  • 4Institute of Ionosphere, Ministry of Education and Science, Almaty, 480020, Kazakhstan

Abstract. More than 3 years of airglow observations with a Spectral Airglow Temperature Imager (SATI) installed at the Sierra Nevada Observatory (37.06°N, 3.38°W) at 2900m height have been analyzed. Values of the column emission rate and vertically averaged temperature of the O2 atmospheric (0–1) band and of the OH Meinel (6–2) band from 1998 to 2002 have been presented. From these observations a clear seasonal variation of both emission rates and rotational temperatures is inferred at this latitude. It is found that the annual variation of the temperatures is larger than the semi-annual variation, while for the emission rates the amplitudes are comparable.

Key words. Atmospheric composition and structure (airglow and aurora; pressure density and temperature; instruments and techniques)

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