Parameterization of the heating in the middle stratosphere due to solar wind-induced electric currents

“…The energy deposition at 30 km height $10 À5 J/m 3 is comparable to the impact of solar UV radiation on the ozone layer [Makarova et al, 2004]. Yet, the energy deposition by particularly intense lightning discharges is highly localized in space and time.…”

Section: Discussionmentioning

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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“…1. Where and when such currents are larger than normal additional, Ohmic heating will occur either in the ionosphere or in the stratosphere (Makarova et al, 2004). Another consequence of the fair weather current is that electric charges can build up on the tops of clouds (Tinsley and Yu, 2003).…”

Section: Phenomena-thunderstorms and The Global Atmospheric Electrmentioning

confidence: 99%

Electrical processes coupling the atmosphere and ionosphere: An overview

Rycroft

2006

Journal of Atmospheric and Solar-Terrestrial Physics

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Parameterization of the heating in the middle stratosphere due to solar wind-induced electric currents

Cited by 9 publications

References 7 publications

Modeling of the Joule heating influence on the circulation and ozone concentration in the middle atmosphere

Modeling of the Joule heating influence on the circulation and ozone concentration in the middle atmosphere

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

Electrical processes coupling the atmosphere and ionosphere: An overview

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