Bimodal distribution of atmospherics associated with tornadic events
作者： R. L. Johnson
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摘要: Directionally resolved records of sferic burst counts were acquired from thunderstorms during April–June 1977. Three tornadoes reported, two being confirmed as hook echoes on National Weather Service radar. The rates, plotted a function 2 min intervals, showed 4–6 period relative inactivity followed by an abrupt enhancement the rate. Numerous investigators have reported activity associated with tornadic storms; however, these results do not indicate lull in sferics immediately prior to enhancement. bimodal distribution has been observed within nontornadic storms this laboratory.
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B. D. Herrman, M. A. Uman, R. D. Brantley, E. P. Krider, Test of the Principle of Operation of a Wideband Magnetic Direction Finder for Lightning Return Strokes Journal of Applied Meteorology. ,vol. 15, pp. 402- 405 ,(1976) , 10.1175/1520-0450(1976)015<0402:TOTPOO>2.0.CO;2
James W. Warwick, Craig O. Hayenga, John W. Brosnahan, Interferometric directions of lightning sources at 34 MHz Journal of Geophysical Research. ,vol. 84, pp. 2457- 2468 ,(1979) , 10.1029/JC084IC05P02457
R. P. Davies-Jones, J. H. Golden, On the relation of electrical activity to tornadoes Journal of Geophysical Research. ,vol. 80, pp. 1614- 1616 ,(1975) , 10.1029/JC080I012P01614
John M. Livingston, E. Philip Krider, Electric fields produced by Florida thunderstorms Journal of Geophysical Research. ,vol. 83, pp. 385- 401 ,(1978) , 10.1029/JC083IC01P00385
W. M. Sherrill, A Survey of HF Interferometry for Ionospheric Propagation Research Radio Science. ,vol. 6, pp. 549- 566 ,(1971) , 10.1029/RS006I005P00549
Rodger A. Brown, Herbert G. Hughes, Directional VLF sferics from the Union City, Oklahoma, tornadic storm Journal of Geophysical Research. ,vol. 83, pp. 3571- 3574 ,(1978) , 10.1029/JC083IC07P03571
William L. Taylor, A VHF technique for space-time mapping of lightning discharge processes Journal of Geophysical Research. ,vol. 83, pp. 3575- 3583 ,(1978) , 10.1029/JC083IC07P03575
E. Philip Krider, R. Carl Noggle, Martin A. Uman, A Gated, Wideband Magnetic Direction Finder for Lightning Return Strokes Journal of Applied Meteorology. ,vol. 15, pp. 301- 306 ,(1976) , 10.1175/1520-0450(1976)015<0301:AGWMDF>2.0.CO;2
William L. Taylor, Electromagnetic radiation from severe storms in Oklahoma during April 29-30, 1970 Journal of Geophysical Research. ,vol. 78, pp. 8761- 8777 ,(1973) , 10.1029/JC078I036P08761