The measurement of electromagnetic fields and related quantities in a lightning environment is a challenging problem, especially at high frequencies and/or in the immediate vicinity of the lightning arcs and corona. This paper reviews the techniques for accomplishing such measurements in these regimes with examples. These sensors are often the same as for the nuclear electromagnetic pulse (EMP), but significant differences also appear.
This paper summarizes some techniques developed for electromagnetic measurements of lightning electromagnetic fields a t Langmuir Laboratory. These included measurement of transient electric and magnetic fields a t the ground surface, use of these fields to estimate location of the lightning and properties of the source, and use of time of arrival a t different sensors t o locate the source. These measurements are compared t o acoustic and photographic measurements of the same events.
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