Articles | Volume 15, issue 7
Atmos. Chem. Phys., 15, 3647–3669, 2015
https://doi.org/10.5194/acp-15-3647-2015
Atmos. Chem. Phys., 15, 3647–3669, 2015
https://doi.org/10.5194/acp-15-3647-2015

Research article 01 Apr 2015

Research article | 01 Apr 2015

OH populations and temperatures from simultaneous spectroscopic observations of 25 bands

S. Noll et al.

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Short summary
We discuss a high-quality data set of simultaneous observations of 25 OH bands with an astronomical echelle spectrograph. These data allowed us to analyse band-dependent OH populations and temperatures. In particular, we could find different non-LTE contributions to OH rotational temperatures depending on band, line set, and observing time. This is critical for mesopause studies that use these temperatures as a proxy of the true temperatures.
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