The Earth's Electrical Environment (1986) / Chapter Skim
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Pages 70-71
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From page 70... ...
However, if the cooling is sufficiently rapid the concentrations of these trace species can be "frozen-in" at levels significantly above their ambient, thermochemical equilibrium abundances, thereby leading to a net source of these gases to the background atmosphere. It is estimated that about 3 tg of N yr- ~ as NO are produced in the present-day atmosphere by lightning through this process.
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From page 71... ...
Immediately after the energy deposition, the temperature in the discharge tube approaches 30,000 K and the gas is a completely ionized plasma. As the gas cools by hydrodynamic expansion and turbulent mixing, the equilibrium composition of the gas changes from a plasma to a mixture of neutral atoms such as N and O and then to a mixture of molecular species and ultimately as the temperatures return to ambient to a mixture of N2, 02, H2O, and CO2 much like the background composition of the atmosphere.
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