[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Radio Frequency of Lightning?



One other point of interest. The earth-ionosphere system acts as a
spherical resonant cavity with a fundamental frequency of about 8 Hz.
This leads to an observable ELF spectrum consisting of the first few
harmonics with sizeable intensity. The cavity is continually stimulated by
lightning.
Regards,
Bill Prestwich
McMaster University
EMAIL:prestwic@mcmaster.ca

************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html