Articles | Volume 17, issue 16
Atmos. Chem. Phys., 17, 9751–9760, 2017
https://doi.org/10.5194/acp-17-9751-2017
Atmos. Chem. Phys., 17, 9751–9760, 2017
https://doi.org/10.5194/acp-17-9751-2017

Research article 18 Aug 2017

Research article | 18 Aug 2017

Resolving the mesospheric nighttime 4.3 µm emission puzzle: comparison of the CO2(ν3) and OH(ν) emission models

Peter A. Panka et al.

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Cited articles

Adler-Golden, S.: Kinetic parameters for OH nightglow modeling consistent with recent laboratory measurements, J. Geophys. Res., 102, 19969–19976, https://doi.org/10.1029/97JA01622, 1997.
Caridade, P. J. S. B., Horta, J.-Z. J., and Varandas, A. J. C.: Implications of the O + OH reaction in hydroxyl nightglow modeling, Atmos. Chem. Phys., 13, 1–13, https://doi.org/10.5194/acp-13-1-2013, 2013.
Cosby, P. and Slanger, T.: OH spectroscopy and chemistry investigated with astronomical sky spectra, Can. J. Phys., 85, 77–99, 2007.
Edwards, D. P., Kumer, J. B., López-Puertas, M., Mlynczak, M. G., Gopalan, A., Gille, J. C., and Roche, A.: Non-local thermodynamic equilibrium limb radiance near 10 µm as measured by UARS CLAES, J. Geophys. Res.-Atmos., 101, 26577–26588, https://doi.org/10.1029/96JD02133, 1996.
Feofilov, A. G. and Kutepov, A. A.: Infrared Radiation in the Mesosphere and Lower Thermosphere: Energetic Effects and Remote Sensing, Surv. Geophys., 33, 1231–1280, https://doi.org/10.1007/s10712-012-9204-0, 2012.
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Recently, theoretical and laboratory studies have suggested an additional nighttime channel of transfer of vibrational energy of OH molecules to CO2 in the mesosphere and lower thermosphere (MLT). We show that new mechanism brings modelled 4.3 μm emissions very close to the SABER/TIMED measurements. This renders new opportunities for the application of the CO2 4.3 μm observations in the study of the energetics and dynamics of the nighttime MLT.
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