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electromagnetic, Electromagnetic pulses caused by atmospheric phenomena, such as lightning. (
plural of, sferic
Wilbur H. Paulsen (American Meteorological Society pub.),
Bulletin of the American Meteorological Society
Locating System has been developed to determine the geographical location of lightning strokes...
Research & Experimentation 1960-1964
:...an artificial generator was used as a known source of EM pulses.
1001 Questions Answered About Hurricanes, Tornadoes and Other Natural Air Disasters
:Researchers have thought that possibly these could be used to track hurricanes"but so far, they have been only marginally successful.
Donald R. MacGorman
, W. David Rust,
The Electrical Nature of Storms
are classified normally by the frequency of the receiver used to detect them.
Rudolf F. Graf, William Sheets,
The Encyclopedia of Electronic Circuits
:This circuit generates a bipolar pulse waveform that closely approximates the main features of .
Rakov, Vladimir A. Rakov, Martin A. Uman,
Lightning: Physics and Effects
:The second common theoretical approach of the propagation of involves viewing the Earth-ionosphere cavity as a waveguide...
) radio interference caused by sferics; atmospherics
D. L. Carpenter,
Identification of Whistler Sources on Visual Records and a Method of Routine Whistler Analysis
:In the identification of sources of short whistlers, the spectral characteristics of the can often be used to establish many as doubtful...
:As it turned out, the whistler was only the first of a family of whose taxonomy was to include clicks, hooks, risers, nose-whistlers and one like a warbling of birds called the dawn chorus....
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