Atmos. Chem. Phys. Discuss., 11, 14221-14232, 2011
www.atmos-chem-phys-discuss.net/11/14221/2011/
doi:10.5194/acpd-11-14221-2011
© Author(s) 2011. This work is distributed
under the Creative Commons Attribution 3.0 License.
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This discussion paper has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP.
Observations of in-situ generated gravity waves during a stratospheric temperature enhancement (STE) event
A. J. Gerrard1, Y. Bhattacharya1, and J. P. Thayer2
1Center for Solar-Terrestrial Research, New Jersey Institute of Technology, 323 Martin Luther King Jr. Boulevard, 101 Tiernan Hall, Newark, NJ 07102-1982, USA
2Aerospace Engineering Sciences, University of Colorado, 429 UCB, Boulder, CO 80309-0429, USA

Abstract. Observations of in-situ generated atmospheric gravity waves associated with a stratospheric temperature enhancement (STE) are presented. 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 waves compare well to numerical modeling predictions, though the potential observation of a downward propagating wave would be unexpected.

Citation: Gerrard, A. J., Bhattacharya, Y., and Thayer, J. P.: Observations of in-situ generated gravity waves during a stratospheric temperature enhancement (STE) event, Atmos. Chem. Phys. Discuss., 11, 14221-14232, doi:10.5194/acpd-11-14221-2011, 2011.
 
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