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Hu & Tung 2002

Hu, Y. and Tung, K.K. (2002). Tropospheric and equatorial influences on planetary-wave amplitude in the stratosphere. Geophysical Research Letters 29: doi: 10.1029/2001GL013762. issn: 0094-8276.

Using 49-year NCEP/NCAR reanalysis data we examine two possible factors affecting the amplitudes of extratropical planetary waves in the stratosphere: tropospheric influence and equatorial Quasi-Biennial Oscillation (QBO) modulation. Our results show that the QBO modulation on wave amplitudes is statistically significant only for wavenumber-1 in early winter. The variability of wavenumber-2 amplitude is mainly determined by tropospheric forcing. The effect of the solar cycle on planetary-wave amplitude is also discussed.

BACKGROUND DATA FILES

	Abstract

Keywords
Meteorology and Atmospheric Dynamics, Middle atmosphere dynamics (0341, 0342), Meteorology and Atmospheric Dynamics, Stratosphere/troposphere interactions

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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