Physics
Scientific paper
Sep 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3218805c&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 18, CiteID L18805
Physics
19
Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Solar Variability (7537), Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342)
Scientific paper
The response of the equatorial quasi-biennial oscillation (QBO) to zonal-mean ozone perturbations consistent with the 11-year solar cycle is examined using a 2$1\!\!/\!_{2 dimensional model of the tropical stratosphere. Unique to this model are wave-ozone feedbacks, which provide a new, nonlinear pathway for communicating solar variability effects to the QBO. Model simulations show that for zonal-mean ozone perturbations representative of solar maximum (minimum), the diabatic heating due to the wave-ozone feedbacks is primarily responsible for driving a slightly stronger (weaker) QBO circulation and producing a slightly shorter (longer) QBO period. These results, which are explained via an analytical analysis of the divergence of Eliassen-palm flux, are in general agreement with observations of quasi-decadal variability of the QBO.
Cordero Eugene C.
Nathan Terrence R.
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