The Earth's Electrical Environment (1986) / Chapter Skim
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Pages 16-19
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From page 16... ...
Natural telluric currents can significantly disturb man-made systems such as communication cables, power lines, pipelines, railways, and buried metal structures. The largest natural disturbances are associated with the intense auroral current systems that flow at high latitudes during geomagnetic storms.
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From page 17... ...
Unfortunately, there are no sensors that can determine the charge-size relationship on the smaller cloud particles inside a thunderstorm; thus the data are not adequate to determine which of the many possible mechanisms dominate the generation and separation of charge. In addition to not knowing the charge-size relationship for various cloud particles, it is not known how this relationship evolves with time when there is lightning.
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From page 18... ...
An improved understanding of the major processes that create strong electric fields and their interactions with cloud particles and precipitation might lead to better forecasting of electrical hazards to aviation, forestry, and other outdoor activities. The first goal of the in-cloud measurements should be to determine the charge-size relationship for various cloud and precipitation particles and the role of screening layers in the upper and lower regions of the storm.
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From page 19... ...
5. Electrical processes in the lower atmosphere and, in particular, within the planetary boundary layer, are important because these, together with global variations, determine the electrical environment of man and the biosphere.
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