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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 16, issue 8
Ann. Geophys., 16, 997–1006, 1998
https://doi.org/10.1007/s00585-998-0997-6
© European Geosciences Union 1998
Ann. Geophys., 16, 997–1006, 1998
https://doi.org/10.1007/s00585-998-0997-6
© European Geosciences Union 1998

  31 Aug 1998

31 Aug 1998

High resolution 2-D maps of OI 630.0 nm thermospheric dayglow from equatorial latitudes

D. Pallam Raju and R. Sridharan D. Pallam Raju and R. Sridharan
  • Physical Research Laboratory, Ahmedabad 380 009, India

Abstract. The first-ever high resolution 2-D maps of OI 630.0 nm dayglow obtained from equatorial latitudes clearly reveal the movement as a large-scale feature of the equatorial ionization anomaly (EIA). These also show the presence of wave-like features classified as gravity waves presumably originating at the crest of the EIA, similar to the equatorial electrojet acting as a source of these waves. These results are presented and discussed.

Key words. Atmospheric composition and structure (Airglow and aurora) · Ionosphere (Equatorial ionosphere; Instruments and techniques).

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