대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

계단상 리더에 의해서 방사된 귀환뇌격 직전의 전장과 자장 파형의 특성

Characteristics of the Electromagnetic Fields Radiated from Stepped Leaders Just Prior to Lightning Return Strokes

  • 이복희 (인하대학 공대 전자전기공학부) ;
  • 이동문 (인하대학 대학원 전기공학과) ;
  • 정동철 (인하대 대학원 전기공학과) ;
  • 장근철 (인하대 대학원 전기공학과) ;
  • 이승칠 (한진공업주식회사) ;
  • 정광희 (삼성전자(주))
  • 발행 : 2003.01.01
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초록

In this paper statistics on the radiation field waveforms produced by stepped leaders just prior to lightning return strokes were described. As a parameter of stepped leader pulse characteristics, the time interval between the final leader pulse and return stroke peak, the pause time between stepped leaders, the ratio of the final leader peak to the return stroke peak and the stepped leader pulse width at half maximum were examined. The average time intervals between the final leader pulse and return stroke peak were about 16.2 and 14.8$mutextrm{s}$ for the positive and negative polarities, respectively. When the stepped leader approaches closely to ground, the time interval between leader steps was decreased and the mean value was about 17$mutextrm{s}$, and the present results were in reasonable agreement with the data observed in Florida and Japan. The large fraction of the ratios of the final stepped leader pulse to the lightning return stroke peak were distributed over the range from 5 to 35% and in average the ratio of the final leader pulse to the return stroke peak was 17.4$\pm$11.9% for the positive and 18.5$\pm$9.4% for the negative electric field waveforms. In addition, the mean pulse widths at half maximum of the stepped leaders are 1.4Us with a standard deviation of 0.9 for the positive Polarity and 2.2us with a standard deviation of 1.2 for the negative polarity, respectively.

키워드

참고문헌

  1. W. Beasley, M. A. Uman, and P. L. Rustan, 'Electric Fields Proceeding Cloud-to-Ground Lightning Flashes', J. Geophys. Res., Vol.87, No. C7, pp.4883-4902, 1982
  2. C. D. Weidman and E. P. Krider, ' The Fine Structure of Lightning Return Stroke Wave Forms', J. Geophys. Res., Vol.83, No.C12, pp.6239-6247, 1978
  3. M. Ishii and J. Hojo, 'Statistics on Fine Structure of Cloud-to-Ground Lightning Field Waveforms', J. Geophys. Res., Vol.94, No.D11, pp.267-274, 1989
  4. Y. T. Lin, M. A. Uman, and R. B. Standler, 'Lightning Return Stroke Models', J. Geophys. Res., Vol.85, No.C3, pp.1571-1583, 1980.3
  5. M. A. Uman, 'Lightning Return Stroke Electric and magnetic Fields', J. Geophys. Res., Vol.90, No.D4, pp.6121-6130, 1985.6
  6. B. H. Lee, S. C. Lee, C. H. Ahn and T. Kawamura, 'Physical Properties of Radiation Fields Produced by Multiple In-cloud Lightning Discharges', Jpn. J. Appl. Phys., Vol.40, Pt.1, No.1, pp.299-306, 2001. 1 https://doi.org/10.1143/JJAP.40.299
  7. B. H. Lee, D. M. Lee, S. C. Lee and C. H. Ahn, 'Statistical properties of Electric Fields Produced by Cloud-to-Ground Return Strokes', KIEE Int. Trans. on EA, Vol.11C, No.4, pp.120-126, 2001.12
  8. M. A. Uman, 'Lightning', Dover Publications Inc., New York, pp. 1-43, 47-68, 216-222, 1982
  9. V. Cooray and S. Lundquist, 'Characteristics of the Radiation Fields From Lightning in Sri Lanka in the Tropics', J. Geophys. Res., Vol.90, No.D4, pp.6099-6109, 1985
  10. E. P. Krider, C. D. Weidman, and R. C. Noggle, 'The Electric Fields Produced by Lightning Stepped Leaders', J. Geophys. Res., Vol.82, No.6, pp.951-960, 1977
  11. E. P. Krider and G. J. Radda, 'Radiation Field Wave Forms Produced by Lightning Stepped Leaders', J. Geophys. Res., Vol.80, No.18, pp.2653-2657, 1975
  12. J Hojo, M Ishii, T. Kawamura, F. Suzuki and R. Funayarna, 'The Fine Structure in the Field Change Produced by Positive Ground Strokes', J. Geophys. Res., Vol.90, No. D4, pp.6139-6143, 1985
  13. V. Cooray and S. Lundquist, 'On the Characteristics of Some Radiation Fields From Lightning and Their Possible Origin in Positive Ground Flashes', J. Geophys. Res., Vol.87, No.C19, pp.11,203-11,214, 1982
  14. M. A. Uman and E. P. Krider, ' A Review of Natural Lightning : Experimental Data and Modelling ', IEEE Trans., Vol.EMC-24, No.2, pp.79-105, 1982 https://doi.org/10.1109/TEMC.1982.304006
  15. E. P. Krider, G. J. Radda, and R. C. Noggle, 'Regular Radiation Field Pulses Produced by Intracloud Lightning Discharges', J. Geophys. Res., Vol.80. No.27, pp.3801-3804, 1975