Articles | Volume 17, issue 10
Research article
30 May 2017
Research article |  | 30 May 2017

Quasi-12 h inertia–gravity waves in the lower mesosphere observed by the PANSY radar at Syowa Station (39.6° E, 69.0° S)

Ryosuke Shibuya, Kaoru Sato, Masaki Tsutsumi, Toru Sato, Yoshihiro Tomikawa, Koji Nishimura, and Masashi Kohma

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Subject: Dynamics | Research Activity: Field Measurements | Altitude Range: Mesosphere | Science Focus: Physics (physical properties and processes)
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Cited articles

Akmaev, R. A., Forbes, J. M., Lübken, F.-J., Murphy, D. J., and Höffner, J.: Tides in the mesopause region over Antarctica: Comparison of whole atmosphere model simulations with ground-based observations, J. Geophys. Res.-Atmos., 121, 1156–1169,, 2016.
Alexander, M. J., Geller, M., McLandress, C., Polavarapu, S., Preusse, P., Sassi, F., Sato, K., Eckermann, S., Ern, M., Hertzog, A., Kawatani, Y., Pulido, M., Shaw, T., Sigmond, M., Vincent, R., and Watanabe, S.: Recent developments in gravity wave effects in climate models, and the global distribution of gravity wave momentum flux from observations and models, Q. J. Roy. Meteor. Soc., 136, 1103–1124, 2010.
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Becker, E.: Sensitivity of the upper mesosphere to the Lorenz energy cycle of the troposphere, J. Atmos. Sci., 66, 647–666,, 2009.
Short summary
The first observations made by a complete PANSY radar system (Program of the Antarctic Syowa MST/IS radar) installed at Syowa Station were successfully performed from 16 to 24 March 2015. Over this period, quasi-12 h period disturbances in the mesosphere at heights of 70 to 80 km were observed. Combining the observational data and numerical simulation outputs, we found that quasi-12 h disturbances are due to large-scale inertia–gravity waves, not to semi-diurnal migrating tides.
Final-revised paper