Articles | Volume 16, issue 5
Atmos. Chem. Phys., 16, 3279–3288, 2016
https://doi.org/10.5194/acp-16-3279-2016
Atmos. Chem. Phys., 16, 3279–3288, 2016
https://doi.org/10.5194/acp-16-3279-2016

Research article 14 Mar 2016

Research article | 14 Mar 2016

Semi-annual oscillation (SAO) of the nighttime ionospheric D region as detected through ground-based VLF receivers

Israel Silber et al.

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Cited articles

Baker, D. J. and Stair Jr., A. T.: Rocket measurements of the altitude distributions of the hydroxyl airglow, Phys. Scripta, 37, p. 611, 1988.
Barr, R., Jones, D. L., and Rodger, C. J.: ELF and VLF radio waves, J. Atmos. Sol.-Terr. Phy., 62, 1689–1718, 2000.
Brasseur, G. and Solomon, S.: Aeronomy of the middle atmosphere: chemistry and physics of the stratosphere and mesosphere, Springer, Science & Business Media, the Netherlands, 2005.
Bremer, J. and Singer, W.: Diurnal, seasonal and solar-cycle variations of electron densities in the ionospheric D-and E-regions, J. Atmos. Terr. Phys., 39, 25–34, 1977.
Clilverd, M. A., Seppälä, A., Rodger, C. J., Verronen, P. T., and Thomson, N. R.: Ionospheric evidence of thermosphere-to-stratosphere descent of polar NOx, Geophys. Res. Lett., 33, L19811, https://doi.org/10.1029/2006GL026727, 2006.
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We report for the first time that the semi-annual oscillation (SAO) is one of the dominant oscillations in the nighttime lower ionosphere, using ground-based measurements of VLF signals reflected off the lower part of the ionosphere. We conclude that the origins of this oscillation are oscillatory changes of the D region's electrical characteristics, driven by NOx transport from the lower thermosphere. This oscillation should be considered in lower ionospheric and VLF wave propagation models.
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