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Big Currents The very most powerful CGs can generate currents of 200+ kiloamps.Still image:
Size: 3322 x 2492
Acquisition: Graphic, Scanned illustration
Frame rate: still
Clearance: No releases required
Location: Graphic
License: Royalty Free
Usage: Creative and Editorial
Point of view: Sky only
Geography: N/A
Ambiance: N/A
Time shot: N/A

Season shot: N/A

Still images available: Y
Keywords:   Lightning Detection, Return stroke, Weather Explanations, Thunderstorm, Lightning (other), Lightning
Asset ID: 5348
Title: Big Currents
Concept: The very most powerful CGs can generate currents of 200+ kiloamps.
Detail: The lightning return stroke represents the flow of current, a motion of electrons through the atmosphere. Lightning detection networks find the typical peak current in a return stroke is around 15 to 30 kiloamps (kA), depending on geography, season, polarity, and order in the flash sequence. Some extreme CGs have been measured producing over 200,000 amperes (200 kA). These currents generate enormous electromagnetic disturbances. We hear thunder, but sensitive radio receivers can also detect the electromagnetic EM) waves produced by lightning. Static, for instance, on your radio is one manifestation of these "spherics". Lightning detection networks use the EM emissions at a variety of frequencies to detect, locate and characterize both CG and IC discharges.

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