Question: A lighting strike associated with a thunderstorm acts very much like a broadband antenna. Explain why data from airplane-borne electric and magnetic field sensors flown

A lighting strike associated with a thunderstorm acts very much like a broadband antenna. Explain why data from airplane-borne electric and magnetic field sensors flown immediately above (in the near zone of) such storms reveal Poynting fluxes in the p̂ direction (with respect to the ẑ-direction of the vertical lighting strike) which increase linearly with frequency between 100 Hz and 10 kHz. Hint: Thunderclouds rise to about 50,000 feet above sea level.

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When a lightning strike occurs within a thunderstorm it generates intense electric and magnetic fields that propagate outward from the strike point These fields act as a broadband antenna meaning they ... View full answer

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