Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 33, issue 1
Articles | Volume 33, issue 1
https://doi.org/10.5194/angeo-33-101-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/angeo-33-101-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 33, issue 1
Regular paper
 | 
27 Jan 2015
Regular paper |  | 27 Jan 2015

A dominant acoustic-gravity mode in the polar thermosphere

A. K. Fedorenko, A. V. Bespalova, O. K. Cheremnykh, and E. I. Kryuchkov

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Short summary
The article presents a summary of the main findings of the systematic study of acoustic-gravity waves (AGWs) in the polar thermosphere. This study was based on the in situ measurements made by the Dynamics Explorer 2 spacecraft. It was found out that AGWs in the polar thermosphere are observed within a narrow frequency band and with horizontal wavelengths about 500-600km. The connection between the directions of motion of AGW and polar wind circulation was detected.
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