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Charge transfer in the lightning stroke as determined by the magnetograph

✍ Scribed by A.D. Meese; W.H. Evans

Book ID
103086870
Publisher
Elsevier Science
Year
1962
Tongue
English
Weight
689 KB
Volume
273
Category
Article
ISSN
0016-0032

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✦ Synopsis

Records of the Tucson Magnetic Observatory were analyzed for the summer period of 1960. Sixteen stroke responses were found for which location data were available. The magnetometer reacts to a lightning stroke as a ballistic instrument so that the maximum deflection is proportional to charge. The average charge transferred was found to be between 143 and 256 coulombs. This charge magnitude is in agreement with previous ballistic measurements, but much larger than the generally accepted value of 20-30 coulombs. The lack of sensitivity of other methods to the smaller persistent current in many strokes may account for the discrepancy.

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