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High Resolution Dynamics Limb Sounder measurements of gravity wave activity in the 2006 Arctic stratosphere

Wright, C. J., Osprey, S. M., Barnett, J. J., Gray, L. J. and Gille, J. C. (2010) High Resolution Dynamics Limb Sounder measurements of gravity wave activity in the 2006 Arctic stratosphere. Journal of Geophysical Research, 115. D02105. ISSN 0148-0227

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To link to this article DOI: 10.1029/2009JD011858

Abstract/Summary

Observations from the High Resolution Dynamics Limb Sounder (HIRDLS) instrument on NASA's Aura satellite are used to quantify gravity wave momentum fluxes in the middle atmosphere. The period around the 2006 Arctic sudden stratospheric warming (SSW) is investigated, during which a substantial elevation of the stratopause occurred. Analysis of the HIRDLS results, together with analysis of European Centre for Medium-Range Weather Forecasting zonal winds, provide direct evidence of wind filtering of the gravity wave spectrum during this period. This confirms previous hypotheses from model studies and further contributes to our understanding of the effects of gravity wave driving on the winter polar stratopause.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Mathematical and Physical Sciences > NCAS
Faculty of Science > School of Mathematical and Physical Sciences > Department of Meteorology
ID Code:4330
Uncontrolled Keywords:mesospheric winds; middle atmosphere
Publisher:American Geophysical Union

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