Ionosonde observations of ionospheric disturbances due to the 15 February 2013 Chelyabinsk meteor explosion

Ionosonde observations of ionospheric disturbances due to the 15 February 2013 Chelyabinsk meteor explosion

Rezy Pradipta1, Cesar E. Valladares1, and Patricia H. Doherty1

1Institute for Scientific Research, Boston College, Chestnut Hill, Massachusetts, USA

Journal of Geophysical Research: Space Physics RESEARCH ARTICLE 10.1002/2015JA021767

Correspondence to:

R. Pradipta, 
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Key Points:

• Chelyabinsk meteor explosion produced gravity waves and ionospheric disturbances 
• These TIDs were detected by several ionosonde stations in Europe and Russia 
• Y-forking of ionogram traces is the main/primary signature of these TIDs

Abstract:

We report the results of our investigations on the potential ionospheric effects caused by the 15 February 2013 Chelyabinsk meteor explosion. We used the data from a number of digisonde stations located in Europe and Russia to detect the traveling ionospheric disturbances (TIDs) likely to have been caused by the meteor explosion. We found that certain characteristic signatures of the TIDs can be identified in individual ionogram records, mostly in the form of Y-forking/splitting of the ionogram traces. Based on the arrival times of the disturbances, we have inferred the overall propagation speed of the TIDs from Chelyabinsk to be 171 ± 14 m/s

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