Posted by: ctbtonewsroom | March 24, 2015

Green fireballs and ball lightning (Royal Society Publishing)

Scientific article by, Stephen Hughes, a researcher at the Queensland University of Technology, Australia, on “green” fireballs falling over the area of Queensland, Australia. As part of the analysis, he utilises CTBTO’s infrasound data from three IMS stations in Australia.

“Infrasound data from 26 April to 26 May 2006 were checked for signals that could have been generated by a meteor but only one possible meteor signal was detected. This was detected by IS07 at 10.47 h UTC, 16 May 2006. The 0.4 – 2 Hz component of the signal indicated a steep trajectory at a velocity greater than 4 km sˉ¹ and the 2–7 Hz band indicated that the object was travelling with a velocity greater than 5 km s ˉ¹ with a backazimuth ranging from 31⁰ to 90⁰ over a period of 40 s. Infrasound data from IS22 in New Caledonia was checked for 16 May but no potential meteoric signal was detected.”

green fireball2 green fireball

Read full article on Scribd.

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