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© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 12 Oct 2018

Research article | 12 Oct 2018

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This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Atmospheric Band Fitting Coefficients Derived from Self-Consistent Rocket-Borne Experiment

Mykhaylo Grygalashvyly1, Martin Eberhart5, Jonas Hedin4, Boris Strelnikov1, Franz-Josef Lübken1, Markus Rapp1,2, Stefan Löhle5, Stefanos Fasoulas5, Mikhail Khaplanov4,†, Jörg Gumbel4, and Ekaterina Vorobeva3 Mykhaylo Grygalashvyly et al.
  • 1Leibniz-Institute of Atmospheric Physics at the University Rostock in Kühlungsborn, Schloss-Str. 6, 18225 Ostseebad Kühlungsborn, Germany
  • 2Deutsches Zentrum für Luft- und Raumfahrt, Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
  • 3Department of Atmospheric Physics, Saint-Petersburg State University, Universitetskaya Emb. 7/9, 199034, Saint-Petersburg, Russia
  • 4Department of Meteorology (MISU), Stockholm University, Stockholm, Sweden
  • 5University of Stuttgart, Institute of Space Systems, Stuttgart, Germany
  • deceased

Abstract. Based on self-consistent rocket-borne measurements of temperature, densities of atomic oxygen and neutral air, and volume emission of the Atmospheric Band (762nm) we examined the one-step and two-step excitation mechanism of O2(b1Σg+) for night-time conditions. Following McDade et al. (1986), we derived the empirical fitting coefficients, which parameterize the Atmospheric Band emission O2(b1Σg+X3Σg)(0,0) in terms of the atomic oxygen concentrations. This allows to derive atomic oxygen concentration from night-time observations of Atmospheric Band emission O2(b1Σg+X3Σg)(0,0). The derived empirical parameters can also be utilised for Atmospheric Band modelling. Additionally, we derived fit function and corresponding coefficients for combined (one- and two-step) mechanism. Simultaneous and true common volume measurements of all the parameters used in this derivation, 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.

Mykhaylo Grygalashvyly et al.
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Mykhaylo Grygalashvyly et al.
Mykhaylo Grygalashvyly et al.
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Short summary
Based on the rocket-born true common volume observations of atomic oxygen, Atmospheric Band emission (762 nm), M and T of the background atmosphere, the one-step, two-step and combined mechanisms of O2(b1Σg+) formation were analysed. We found new coefficients for fit function based on self-consistent temperature, atomic oxygen and volume emission observation. This can be utilised either for atmospheric band volume emission modelling or for estimation of atomic oxygen by known volume emission.
Based on the rocket-born true common volume observations of atomic oxygen, Atmospheric Band...