Atmospheric band fitting coefficients derived from a self-consistent rocket-borne experiment

Grygalashvyly, Mykhaylo; Eberhart, Martin; Hedin, Jonas; Strelnikov, Boris; Lübken, Franz-Josef; Rapp, Markus; Löhle, Stefan; Fasoulas, Stefanos; Khaplanov, Mikhail; Gumbel, Jörg; Vorobeva, Ekaterina

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 O2b1Σg+ for nighttime conditions. Following McDade et al. (1986), we derived the empirical fitting coefficients, which parameterize the atmospheric band emission O2b1Σg+-X3Σg-0,0. This allows us to derive the atomic oxygen concentration from nighttime observations of atmospheric band emission O2b1Σg+-X3Σg-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 O2b1Σg+-X3Σg-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.

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Grygalashvyly, Mykhaylo / Eberhart, Martin / Hedin, Jonas / et al: Atmospheric band fitting coefficients derived from a self-consistent rocket-borne experiment. 2019. Copernicus Publications.

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Rechteinhaber: Mykhaylo Grygalashvyly et al.

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