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Further quantification of the sources and sinks of thermospheric O¹D) atoms

Authors:	DG Torr PG Richards MR Torr VJ Abreu

Institution:	Center for Atmospheric and Space Sciences, Utah State University, UMC 41, Logan, UT 84322, U.S.A.;Space Physics Research Laboratory, Department of Atmospheric and Oceanic Science, University of Michigan, Ann Arbor, MI 48109, U.S.A.

Abstract:	In this paper we confirm an earlier finding that the reaction constitutes a major source of OI 6300 Å dayglow. The rate coefficient for this reaction is found to be consistent with an auroral result, namely k₁ ≈ 6 × 10^?12cm³s^?1. We correct an error in an earlier publication and demonstrate that reaction (1) is consistent with the laboratory determined quenching rate for the reaction where $k_{2} = 2.3 × 10^{?11} cm^{3} s^{?1}$ . Dissociative recombination of O⁺₂ with electrons is found to be a major daytime source in summer above ～220 km.

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