Article published in Radcom March 2021 p76. Click for pdf

 References

1	Douglas Adams: “Dirk Gently's Holistic Detective Agency”
2	Report by Martin Andrew GM6VXB https://groups.io/g/RSGB-PSC/topic/fw_fwd_gb3ler/27488735?p=,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,160,27488735#
3	Pasko, V. P. (2012): “Infrasonic waves generated by supersonic auroral arcs”, Geophys. Res. Lett., 39, L19105, doi:10.1029/2012GL053587. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2012GL053587
4	Jim Bacon G3YLA: “Why radio and weather go together” - RSGB 2020 Convention Online presentation - https://www.youtube.com/watch?v=AQpWBE8tKtU
5	Aalto University. "Acoustics researcher finds explanation for auroral sounds." ScienceDaily, 22 June 2016. http://www.sciencedaily.com/releases/2016/06/160622104806.htm
6	Unto K. Laine: “Auroral Acoustics project – a progress report with a new hypothesis” BNAM 2016 https://www.researchgate.net/publication/304252270_Auroral_Acoustics_project_-_a_progress_report_with_a_new_hypothesis
7	Unto K. Laine: “Localization of sound sources in temperature inversion layer during a geomagnetic storm” 24th International Congress on Sound and Vibration, 23-27 July 2017, London.
8	Bell, A. G. "On the production and reproduction of sound by light". American Journal of Science. S3-20 (118): 305–324 (1880)
9	S. Manohar and D Razansky: “Photoacoustics: a historical review.”. Advances in Optics and Photonics Vol. 8, No. 4 December 2016
10	https://en.wikipedia.org/wiki/Perseids
11	https://en.wikipedia.org/wiki/Chelyabinsk_meteor
12	The Meteoritical Society: https://www.lpi.usra.edu/meteor/metbull.php?code=57165
13	Keay, C.S: “Progress in Explaining the Mysterious Sounds Produced by Very Large Meteor Fireballs” Journal of Scientific Exploration, Vol. 7, No. 4, pp. 337-354, 1993
14	J.-L. Rault: “Searching for meteor ELF /VLF signatures” WGN, Journal of the IMO 2010, 38, p67
15	Spalding, R. et al. “Photoacoustic Sounds from Meteors” Sci. Rep. 7, 41251; doi: 10.1038/srep41251 (2017).
16	https://en.wikipedia.org/wiki/Magnitude_(astronomy)
17	https://en.wikipedia.org/wiki/Sound_pressure#Sound_pressure_level