Articles | Volume 21, issue 15
Research article
10 Aug 2021
Research article |  | 10 Aug 2021

The sporadic sodium layer: a possible tracer for the conjunction between the upper and lower atmospheres

Shican Qiu, Ning Wang, Willie Soon, Gaopeng Lu, Mingjiao Jia, Xingjin Wang, Xianghui Xue, Tao Li, and Xiankang Dou

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Solitary wave characteristics on the fine structure of mesospheric sporadic sodium layer
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Subject: Dynamics | Research Activity: Atmospheric Modelling and Data Analysis | Altitude Range: Mesosphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Abdu, M. A., Macdougall, J. W., Batista, I. S., Sobral, J. H. A., and Jayachandran, P. T.: Equatorial evening prereversal electric field enhancement and sporadic E layer disruption: A manifestation of E and F region coupling, J. Geophys. Res.-Space, 108, SIA 8-1–SIA 8-13, 2003. 
Bittencourt, J. A.: Fundamentals of Plasma Physics, 3rd Edn., Springer-Verlag, New York, Inc., 9–10 pp., 2004. 
Bortnik, J., Thorne, R. M., O'Brien, T. P., Green, J. C., Strangeway, R. J., Shprits, Y. Y., and Baker, D. N.: Observation of two distinct, rapid loss mechanisms during the 20 November 2003 radiation belt dropout event, J. Geophys. Res.-Space, 111, A12216,, 2006. 
Chinese Meridian Project: available at:, last access: 6 August 2021. 
Christos, H.: Is there a conclusive evidence on lightning-related effects on sporadic E layers?, J. Atmos. Sol.-Terr. Phy., 172, 117–121, 2018. 
Short summary
Our results suggest that lightning strokes would probably influence the ionosphere and thus give rise to the occurrence of a sporadic sodium layer (NaS), with the overturning of the electric field playing an important role. Model simulation results show that the calculated first-order rate coefficient could explain the efficient recombination of Na+→Na in this NaS case study. A conjunction between the lower and upper atmospheres could be established by these inter-connected phenomena.
Final-revised paper