Calculate Electricity of Lightning Bolt: Formula?

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SUMMARY

This discussion focuses on calculating the electricity of a lightning bolt using the relationship between thunder characteristics and lightning channel properties. By measuring the time of arrival of the first sound of thunder, one can determine the distance to the lightning strike. The duration of thunder provides a minimum length for the lightning channel, while the pitch of thunder, typically around 50 cycles per second, allows for the calculation of energy input, estimated between 100,000 to 1,000,000 watt-seconds per yard of channel length. Factors such as air density, altitude, and proximity significantly influence the pitch of thunder.

PREREQUISITES
  • Understanding of sound propagation and its relation to distance measurement
  • Basic knowledge of lightning physics and channel characteristics
  • Familiarity with energy calculations in electrical phenomena
  • Awareness of environmental factors affecting sound, such as air density and altitude
NEXT STEPS
  • Research the physics of sound propagation in different atmospheric conditions
  • Study Martin A. Uman's work on lightning for deeper insights
  • Explore methods for measuring thunder pitch and its implications
  • Investigate the energy output of lightning strikes and its measurement techniques
USEFUL FOR

Scientists, meteorologists, electrical engineers, and anyone interested in the physics of lightning and thunder dynamics.

skulliam4
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If given the decibels from the thunder and the distance away the lightning struck, would it be possible to tell the amount of electricity in that bolt of lightning? If so, a formula would be much appreciated.
 
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Apparently decibels don't figure into it.

After consulting Martin A. Uman's basic reference book on lightning, I summarize the following:

From measurement of the time of arrival of the first sound of thunder we can determine the distance to the closest point of the lightning channel.

From the thunder's duration we can determine a minimum length for the channel.

Generally the pitch of thunder is 50 cycles per second. From measurement of pitch and use of appropriate theory, scientists have determined the energy input per unit length of lightning stroke channel (100,000 to 1,000,000 watt-seconds per yard of channel length).

Thunder pitch is also influenced by air density and altitude.
 
Last edited:
Thunder pitch is also influenced by air density and altitude.

... and proximity ! :smile:

the closer it is the sharper and higher frequency the crack. compared to long distance low frequency rumbles


Dave
 
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