The effect of particle precipitation events on the neutral and ion chemistry of the middle atmosphere: II. Odd hydrogen |
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| Authors: | S Solomon DW Rusch JC Gérard GC Reid PJ Crutzen |
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| Institution: | National Center for Atmospheric Research, Boulder, CO 80307, U.S.A. |
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| Abstract: | A one dimensional time-dependent model of the neutral and ion chemistry of the middle atmosphere has been used to examine the production of odd hydrogen (H, OH, and HO2) during charged particle precipitation. At altitudes above about 65 km, odd hydrogen production depends on the ionization rate, and the atomic oxygen and water vapor densities. Odd hydrogen production is shown to exhibit diurnal and other time dependent variations during such an event at these altitudes, and the assumption that two odd hydrogen particles are always produced per ionization is reexamined. |
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