P.P. Pathak, Shelly Rajput
P.P. Pathak1, Shelly Rajput2*
1Department of Physics, Gurukula Kangri (Deemed to be University), Haridwar, India.
2Department of Applied Sciences, Delhi Global Institute of Technology, Haryana, India.
Volume - 12,
Issue - 1,
Year - 2021
The stepped leader and return stroke are known to emit the radiation in LF to VHF and microwave region (Cooray, 1986; Pathak, 1994). A return stroke along with its image in the earth (as a finitely conducting surface) constitute a variable dipole giving out electromagnetic radiations in VLF range (Pathak. et al.1982; Pathak and Hazarika, 1985). In present paper the magnitude of electromagnetic radiation in LF-VHF range during return stroke have been calculated and compared with the available observed radiation (Weidman and Krider, 1986) in HF-VHF range and found in good agreement. For this the electric field radiated by a corona streamer is integrated theoretically throughout the return stroke channel.
Cite this article:
P.P. Pathak, Shelly Rajput. Signatures of Radiation due to Return Stroke in LF-VHF range during ground discharge. Research J. Engineering and Tech. 2021;12(1):15-18. doi: 10.5958/2321-581X.2021.00003.9
P.P. Pathak, Shelly Rajput. Signatures of Radiation due to Return Stroke in LF-VHF range during ground discharge. Research J. Engineering and Tech. 2021;12(1):15-18. doi: 10.5958/2321-581X.2021.00003.9 Available on: http://ijersonline.org/AbstractView.aspx?PID=2021-12-1-3
1. Cooray, V.: Temporal behavior of lightning HF radiation at 3 MHz near the time of first return stroke, J. Atmos. Terr. Phys., 48, 73-78(1986).
2. Griffiths, R. F., and C.T. Phelps: A Model of Lightning initiation arising from positive corona streamers developments, J. Geophys. Res., 81, 3671-3676 (1976)
3. Pathak, P.P.: Positive corona streamers as a source of high frequency radiation, J. Geophys. Res., 99D ,10843-10845 (1994)
4. Pathak, P.P., and S. Hazarika: Effect of ground conductivity on VLF radiation from lightning, J. Radio and Space Phys.14,122(1985)
5. Pathak, P.P., Rai, J. and Varshneya, N.C.: VLF radiation from lightning, Geophys. J. Roy. Astron. Soc., 69, 197-207(1982)
6. Rai, J.: Current and velocity of the return lightning stroke, J. Atmos. Terr. Phys., 40, 1275-1285 (1978)
7. Rai, J., M. Rao, and B.A.P. Tantry: Bremsstrahlung as a possible source of UHF emissions from lightning, Nature, 238, 59-60(1972)
8. Rai, J., S.P. Gupta, and P.K. Bhattacharya: Electromagnetic field of multiple return stroke lightning, Int. J. Electron, 36, 649-654(1974)
9. Rakov, V.A.: Lightning phenomenology and parameters important for lightning protection, 9th International Symposium on Lightning Protection (2007)
10. Rao, M.: corona current after the return stroke and the emission of ELF waves in a lightning flash to earth, Radio Sc., 2, 241-244(1967)
11. Rao, M., and H. Bhattacharya: Lateral corona current from return stroke channel and slow field changed after the return stroke in a lightning discharge, J. Geophys. Res., 71, 2811-2814(1967)
12. Schonland, B.F.J.: The Lightning Discharge, Handbook. Phys., 22, 576-628 (1956)
13. Schonland, B.F.J., D.J. Malan, H. Collens: Progressive Lightning, Pt. 2. Proc. R. Soc. London Ser. A, 152, 595-625(1935)
14. Shao, X.M., C.T. Rhodes, and N. Holden: RF radiation observation of positive cloud-to-ground flashes, J. Geophys. Res. 104, 9601-9608(1999)
15. Uman, M.A.: The lightning discharge, Academic Press Inc. (1987)
16. Weidman, C.D., and E.P. Krider: The amplitude spectra of lightning radiation fields in the interval from 1-20 MHz, Radio Sci., 21, 964-976(1986)
17. Wong, C.M., and K. K. Lim: The inclination of intra-cloud lightning discharge, J. Geophys. Res., 83,1905-1912(1978)
18. Megha Gupta, and P.P. Pathak: Mechanism of radiation in HF range from return stroke, 3rd conference, Uttarakhand state Science andTechnology congress, (2008).