Abstract
THE problems confronting weather modification by seeding methods are well known and centre on the dispersion of the seeding agent over a large air volume. In a different method for artificial cloud modification proposed by Vonnegut and Moore1 electric charges are released by corona discharges into updraughts from the ground by a system of wires at a high electric potential. In this method the electric charges are much more rapidly dispersed, due to a rather large ion mobility in a thundercloud electric field, than is otherwise possible for seeding agents dispersed by turbulent convection. But the system of ground wires seems to be impractical for a weather modification technique with the demand for high mobility.
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References
- 1
Vonnegut, B., and Moore, C. B., in Recent Advances in Atmospheric Electricity (edit. by Smith, L. G.), 317–331. (Pergamon Press, New York, London, Paris, and Los Angeles, 1958).
- 2
Vonnegut, B., Proc. Conf. Atmos. Electricity, 169–181, (Air Force Cambridge Res. Lab., Cambridge, Massachusetts, 1955).
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Affiliations
Laboratory of Atmospheric Physics, Desert Research Institute, University of Nevada System, Reno, Nevada, 89507
- F. WINTERBERG
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