from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A system that displays a map of the position of recorded or real-time lightning discharges relative to the user or other objects.
- n. The component of such a system that gathers the required data, comprised of an interconnected network of electric field change sensors that measure the time of arrival of electric field pulses from the strokes in a lightning flash. 2D maps require 3 such sensors, 3D maps require 4.
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