Journal cover Journal topic
Annales Geophysicae An open-access journal of the European Geosciences Union
Ann. Geophys., 35, 481-491, 2017
https://doi.org/10.5194/angeo-35-481-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Regular paper
24 Mar 2017
Effect of water vapour absorption on hydroxyl temperatures measured from Svalbard
Joshua M. Chadney et al.

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Short summary
A layer of excited OH molecules in the upper atmosphere produces strong airglow emission from which it is possible to obtain the temperature of the layer. To obtain accurate temperatures values, one must take into account the absorption of OH emission by water vapour in the lower atmosphere before this emission is measured by instruments on the ground. This paper provides the amount of absorption suffered by each OH line due to water vapour and presents a method to estimate water concentrations.
A layer of excited OH molecules in the upper atmosphere produces strong airglow emission from...
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