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Atmospheric band fitting coefficients derived from a self-consistent rocket-borne experiment
Stockholm University, Faculty of Science, Department of Meteorology .ORCID iD: 0000-0001-5338-1538
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Number of Authors: 112019 (English)In: Atmospheric Chemistry And Physics, ISSN 1680-7316, E-ISSN 1680-7324, Vol. 19, no 2, p. 1207-1220Article in journal (Refereed) Published
Abstract [en]

Based on self-consistent rocket-borne measurements of temperature, the densities of atomic oxygen and neutral air, and the volume emission of the atmospheric band (762 nm), we examined the one-step and two-step excitation mechanism of O-2 (b(1)Sigma(+)(g)) for nighttime conditions. Following McDade et al. (1986), we derived the empirical fitting coefficients, which parameterize the atmospheric band emission O-2 (b(1)Sigma(+)(g) - X-3 Sigma(-)(g)) (0, 0). This allows us to derive the atomic oxygen concentration from nighttime observations of atmospheric band emission O-2 (b(1)Sigma(+)(g) - X-3 Sigma(-)(g)) (0, 0). The derived empirical parameters can also be utilized for atmospheric band modeling. Additionally, we derived the fit function and corresponding coefficients for the combined (one-and two-step) mechanism. The simultaneous common volume measurements of all the parameters involved in the theoretical calculation of the observed O-2 (b(1)Sigma(+)(g) - X-3 Sigma(-)(g)) (0, 0) emission, i.e., temperature and density of the background air, atomic oxygen density, and volume emission rate, is the novelty and the advantage of this work.

Place, publisher, year, edition, pages
2019. Vol. 19, no 2, p. 1207-1220
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:su:diva-166780DOI: 10.5194/acp-19-1207-2019ISI: 000457277400001OAI: oai:DiVA.org:su-166780DiVA, id: diva2:1295746
Available from: 2019-03-12 Created: 2019-03-12 Last updated: 2019-03-12Bibliographically approved

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Hedin, JonasRapp, MarkusGumbel, Jörg
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