On the polarity and continuing currents in unusually large lightning flashes deduced from ELF events

Burke, C. P.; Jones, D. Llanwyn

doi:10.1016/0021-9169(95)00054-2

Cited by 73 publications

(48 citation statements)

References 14 publications

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“…The Nagicenk Geodetic Observatory (NGC) in Sopron, Hungary, is described in detail Sato et al [2008] is based on the principles described in Burke and Jones [1996].…”

Section: Charge Moment Changementioning

confidence: 99%

Ground-based observations of the relations between lightning charge-moment-change and the physical and optical properties of column sprites

Yaniv

Yair

Price

et al. 2014

Journal of Atmospheric and Solar-Terrestrial Physics

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“…The Nagicenk Geodetic Observatory (NGC) in Sopron, Hungary, is described in detail Sato et al [2008] is based on the principles described in Burke and Jones [1996].…”

Section: Charge Moment Changementioning

confidence: 99%

Ground-based observations of the relations between lightning charge-moment-change and the physical and optical properties of column sprites

Yaniv

Yair

Price

et al. 2014

Journal of Atmospheric and Solar-Terrestrial Physics

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“…A reasonable interpretation of the presented results is that spriteassociated lightning flashes can excite Earth-ionosphere cavity resonances. A possible mechanism is that lightning discharges with continuing current excite radio-atmospheric slow tails [Wait, 1960] and Earth-ionosphere cavity resonances [Burke and Jones, 1996]. The arrival azimuth was estimated from the time of maximum horizontal magnetic intensity and is in agreement with the expected Poynting vector orientation along the greatcircle path.…”

Section: Discussionmentioning

confidence: 61%

On the accuracy of arrival azimuth determination of sprite‐associated lightning flashes by Earth‐ionosphere cavity resonances

Füllekrug¹,

Reising²,

Lyons³

1996

Geophysical Research Letters

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Abstract. Horizontal magnetic field variations in the frequency range of the Earth-ionosphere cavity resonances are observed at Silberborn, Germany, simultaneous with 19 sprite-associated lightning flashes in the midwestern United States, on July 15, 1995. The measured horizontal magnetic intensities are linearly related to the horizontal magnetic intensities of slow tails of radio atmospherics which were simultaneously recorded at Palmer Station, Antarctica. Enhancement of the Earth-ionosphere cavity resonances is verified by spectral analysis, and the measured arrival azimuths are in agreement with the expected orientation of the Poynting vector along the great-circle path. The estimated accuracy of the arrival azimuth determination is on the order of ±5°.

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“…The remote signals can be measured simultaneously around the globe with networks of sensitive radio wave magnetometers Füllekrug and Constable, 2000]. The recorded magnetic field B is linearly related to the lightning current I through the transfer function T [Burke and Jones, 1996] …”

Section: Lightning Current Waveformmentioning

confidence: 99%

“…The angular distances between the lightning discharges and the magnetometer in Silberborn are determined by triangulation of the source locations with a global network of three magnetometers in Silberborn, Germany, Hollister, California, and Lameroo, Australia. Note that this study does not discriminate the polarity of the intense lightning discharges since the Joule heating is an absolute quantity and the differences between positive and negative lightning continuing current are rather small in this frequency range [Füllekrug et al, 2002;Burke and Jones, 1996]. One second long time intervals of the broadband waveforms in the frequency range 1-200 Hz are extracted and averaged into one time series for each source receiver distance from 2,000 -18,000 km with a spatial resolution of 100 km which results in 160 mean time series.…”

Section: Lightning Current Waveformmentioning

confidence: 99%

Stratospheric Joule heating by lightning continuing current inferred from radio remote sensing

Füllekrug

Ignaccolo

Kuvshinov³

2006

Radio Science

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[1] The mean lightning current waveform of particularly intense lightning discharges is inferred from 52,510 radio wave recordings in the frequency range 1-200 Hz. The current waveform decays initially with a time constant of $2 ms, and the current lowers $60 C from cloud to ground within the first $10 ms of the discharge. The subsequent continuing current exhibits a decay time constant of $40 ms and lowers $170 C from cloud to ground within the next $100 ms of the discharge. The total charge transfer $230 C from cloud to ground deposits electrical energy into the stratosphere resulting from quasi-static (Joule) heating. The energy deposition is dominated by the lightning continuing current, and it is $10 À5 J/m 3 at 30 km height. It is speculated that the initiation of blue jets and gigantic jets in the stratosphere may result from lightning continuing current^100 ms which can be observed with radio waves at frequencies ]10 Hz.Citation: Füllekrug, M., M. Ignaccolo, and A. Kuvshinov (2006), Stratospheric Joule heating by lightning continuing current inferred from radio remote sensing, Radio Sci., 41, RS2S19,

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On the polarity and continuing currents in unusually large lightning flashes deduced from ELF events

Cited by 73 publications

References 14 publications

Ground-based observations of the relations between lightning charge-moment-change and the physical and optical properties of column sprites

Ground-based observations of the relations between lightning charge-moment-change and the physical and optical properties of column sprites

On the accuracy of arrival azimuth determination of sprite‐associated lightning flashes by Earth‐ionosphere cavity resonances

Stratospheric Joule heating by lightning continuing current inferred from radio remote sensing

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