Return Strokes Measurements of Electric Field Produced by Lightning Discharges in Malaysia

Abstract:

The physics of cloud discharges have not been known completely yet. The cloud to ground discharges is divided by researchers into several stages to make the analyses of lightning flash easier. The first step is preliminary breakdown which is called to pre-starting process prior to leader initiation within the clouds. The leader initiation precedes return strokes in continuing the cloud discharges. The time and amplitude of lightning waveforms differs in each flash with the other ones due to the stochastic characteristics of lightning flashes. This research tries to add more analyses to few previous researches done in tropical regions. On the other hand, observations of this study is compared with those obtained in Sweden to show the differences between statistics of return strokes in Malaysia and Sweden as a temperate region. A broadband antenna and a buffer system for amplifying input signal and also impedance matching is used in this study for capturing electric field of lightning waveforms to carry out statistical analyses on them in Johor, Malaysia. The percentage of single stroke flashes was 18% in Sweden and 12.1% in this study which shows single strokes happens more in temperate regions rather than tropical regions. Total number of 568 subsequent return strokes out of 271 flashes shows a Mean number of 3.4 strokes per flash in Sweden compared with 184 subsequent strokes out of 58 flashes in this study which presents 4.1 strokes per flash in average.

• Periodical: Applied Mechanics and Materials (Volume 554)
• Pages: 618-622
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.554.618
• Online since: June 2014
• Authors: Kamyar Mehranzamir*, Zulkurnain Abdul-Malek, Behnam Salimi, Noor Azlinda Ahmad
• Keywords: Breakdown, Electric Field, Lightning Discharge, Lightning Flash Detection, Return Stroke

References

[1] S.R. Sharma, V. Cooray, M. Fernando, Isolated breakdown activity in Swedish lightning, Journal of Atmospheric and Solar-Terrestrial Physics, Volume 70, Issues 8–9, pp.1213-1221, ISSN 1364-6826, http: /dx. doi. org/10. 1016/j. jastp. 2008. 03. 003, (2008).

DOI: 10.1016/j.jastp.2008.03.003

[2] K. Mehranzamir, B. Salimi, Z. Abdul-Malek, Investigation of Preliminary Breakdown Pulses in Lightning Waveforms, The 34th Progress In Electromagnetics Research Symposium (PIERS) in Stockholm, Sweden, 1542-1546, August 12-15, (2013).

[3] N. A Ahmad, M. Fernando, Z.A. Baharudin, V. Cooray, H. Ahmad, Z. Abdul Malek, Characteristics of narrow bipolar pulses observed in Malaysia, Journal of Atmospheric and Solar-Terrestrial Physics, Volume 72, Issues 5–6, Pages 534-540, ISSN 1364-6826, http: /dx. doi. org/10. 1016/j. jastp. 2010. 02. 006, April, (2010).

DOI: 10.1016/j.jastp.2010.02.006

[4] B. Salimi , Z. Abdul-Malek , S.J. Mirazimi, K. Mehranzamir, Investigation of Short Base Line Lightning Detection System by Using Time of Arrival Method, Intelligent Informatics. Springer Berlin Heidelberg, 182, pp.141-147, http: /dx. doi. org/10. 1007/978-3-642-32063-7_16, (2013).

DOI: 10.1007/978-3-642-32063-7_16

[5] Mehranzamir. Kamyar, Salimi. Behnam, Abdul-Malek. Zulkurnain, Comparative study of lightning models with lightning discharges in Malaysia,  Electrical Insulation and Dielectric Phenomena (CEIDP), 2013 IEEE Conference on , vol., no., pp.1085-1088, doi: 10. 1109/CEIDP. 2013. 6747446, 20-23 Oct. (2013).

DOI: 10.1109/ceidp.2013.6747446

[6] B. Salimi, Z. Abdul-Malek, K. Mehranzamir, S. Vahabi Mashak, H. Nabipour Afrouzi, Localised Single-Station Lightning Detection by Using TOA Method, Jurnal Teknologi. Vol 64. No. 4, p.73–77. ISSN 0127–9696. doi: 10. 11113/jt. v64. 2105, (2013).

DOI: 10.11113/jt.v64.2105

[7] B. Salimi, K. Mehranzamir, Z. Abdul-Malek, Statistical Analysis of Lightning Electric Field Measured Under Malaysian Condition, Asia-Pacific Journal of Atmospheric Sciences, Volume 50, Issue 2, pp.133-137, http: /dx. doi. org/10. 1007/s13143-014-0002-0,  February, (2014).

DOI: 10.1007/s13143-014-0002-0

[8] B. Salimi, K. Mehranzamir, Z. Abdul-Malek, Statistical Analysis of Lightning Electric Field Measured Under Equatorial Region Condition, Procedia Technology, Elsevier, Volume 11, Pages 525-531, ISSN 2212-0173, http: /dx. doi. org/10. 1016/j. protcy. 2013. 12. 224, (2013).

DOI: 10.1016/j.protcy.2013.12.224

[9] Cooray, V., Prez,H., Some features of lightning flashes observed in Sweden, Journal of Geophysical Research: Atmospheres, Volume 99, pp.10683-10688, http: /dx. doi. org/10. 1029/93JD02366, (1994).

DOI: 10.1029/93jd02366