Abstract

Simultaneous rocket measurements of the OH Meinel (8-3) band and O2 Atmospheric (0-0) band emission profiles are used to investigate the OH (v = 8) loss in the equatorial mesosphere due to collisions with O2 and N2. The O2 Atmospheric (0-0) band emission profile is used to obtain the atomic oxygen concentration. The derived branching ratios, A(8)A(8-3), and quenching parameters are found to be about a factor of two smaller than those obtained by McDade et al. (1987). Adopting branching ratios A(8)A(8-3) from the literature, the best agreement between the emission profiles of oxygen and OH is obtained using the Meinel band transition probabilities of Turnbull and Lowe (1989).

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