Sprites in varying air density: Charge conservation, glowing negative trails and changing velocity

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چکیده

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Sprites in varying air density: Charge conservation, glowing negative trails and changing velocity

[1] We study the initial downward propagation of long sprite streamers in naturally varying air density with numerical simulations on adaptively refined grids. We find that the ionization rate and the light emission from the streamer head increase approximately linearly with air density (therefore exponentially with time) while the radius hardly changes, in contradiction with a naive applicatio...

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ژورنال

عنوان ژورنال: Geophysical Research Letters

سال: 2010

ISSN: 0094-8276

DOI: 10.1029/2009gl041982