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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 22
Atmos. Chem. Phys., 11, 11913-11917, 2011
https://doi.org/10.5194/acp-11-11913-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 11, 11913-11917, 2011
https://doi.org/10.5194/acp-11-11913-2011
© Author(s) 2011. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 30 Nov 2011

Research article | 30 Nov 2011

Observations of in-situ generated gravity waves during a stratospheric temperature enhancement (STE) event

A. J. Gerrard1, Y. Bhattacharya1, and J. P. Thayer2 A. J. Gerrard et al.
  • 1Center for Solar-Terrestrial Research, New Jersey Institute of Technology, 323 Martin Luther King Jr. Boulevard, Newark, NJ 07102-1982, USA
  • 2Aerospace Engineering Sciences, University of Colorado, 429 UCB, Boulder, CO 80309-0429, USA

Abstract. Evidence for in situ generated atmospheric gravity waves associated with a stratospheric temperature enhancement (STE) are presented. The signatures of two sets of gravity waves are observed by molecular-aerosol lidar in conjunction with the early December 2000 STE event above Sondrestrom, Greenland. The first set of gravity waves shows downward phase progression with a vertical wavelength of ~8 km while the second set shows upward phase progression with a vertical wavelength of ~9 km. With estimates of the background wind fields from synoptic analyses, the various intrinsic gravity wave parameters of these two wave structures are found. The observed wave features compare well to previous numerical modeling predictions.

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