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- Rahman, Mahbubur, et al.
(författare)
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Direct measurement of NOx produced by lightning
- 2006
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Ingår i: EOS Trans. AGU, 87(52), Fall Meet. Suupl., Abstract AE53A-0289, 2006, San Francisco, USA.
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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- Rahman, Mahbubur, et al.
(författare)
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Measurements of NOx produced by rocket-triggered lightning
- 2007
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Ingår i: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 34:3, s. L03816-
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Tidskriftsartikel (refereegranskat)abstract
- We present the first direct measurements of NOx generated by specific lightning sources. In July 2005, three negative lightning flashes were triggered using the rocket-and-wire technique at the International Center for Lightning Research and Testing (ICLRT) at Camp Blanding, Florida. The NOx produced by these three rocket-triggered flashes was measured. The NOx production per unit charge was between 2 and 3 · 1020 molecules per meter per coulomb. The data show that the NOx production is primarily from long-duration, steady currents, as opposed to microsecondscale impulsive return stroke currents. This observation implies that cloud discharges, which transfer, via a steady current of the order of 100 A, larger charges than ground discharges, but do not contain return strokes, are as efficient as (or more efficient than) cloud-to-ground discharges in producing NOx.
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