Numerical and statistical evidence for long-range ducted gravity wave propagation over Halley, Antarctica
Article first published online: 20 SEP 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 18, pages 4813–4817, 28 September 2013
How to Cite
2013), Numerical and statistical evidence for long-range ducted gravity wave propagation over Halley, Antarctica, Geophys. Res. Lett., 40, 4813-4817, doi:10.1002/grl.50926., , , , , and (
- Issue published online: 11 OCT 2013
- Article first published online: 20 SEP 2013
- Accepted manuscript online: 10 SEP 2013 10:30PM EST
- Manuscript Accepted: 4 SEP 2013
- Manuscript Revised: 3 SEP 2013
- Manuscript Received: 12 JUL 2013
- gravity waves;
 Abundant short-period, small-scale gravity waves have been identified in the mesosphere and lower thermosphere over Halley, Antarctica, via ground-based airglow image data. Although many are observed as freely propagating at the heights of the airglow layers, new results under modeled conditions reveal that a significant fraction of these waves may be subject to reflections at altitudes above and below. The waves may at times be trapped within broad thermal ducts, spanning from the tropopause or stratopause to the base of the thermosphere (∼140 km), which may facilitate long-range propagation (∼1000s of km) under favorable wind conditions.