期刊
JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN
卷 80, 期 4B, 页码 849-862出版社
METEOROLOGICAL SOC JPN
DOI: 10.2151/jmsj.80.849
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Variability in planetary wave forcing from the troposphere to the stratosphere is reflected in changes in ozone transport, due. to fluctuations in the stratospheric Brewer-Dobson circulation and eddy mixing. This work examines the space-time patterns of correlations between column ozone tendency and planetary wave Eliassen-Palm (EP) flux into the lower stratosphere, using monthly mean data for 1979-2000. Strong correlations are found during winter-spring in both hemispheres, with out-of-phase ozone changes between the tropics and middle-high latitudes. Springtime polar ozone is strongly influenced by wave forcing in both the Arctic and Antarctic. The ozone tendency-wave forcing correlations are combined with observed variations in EP flux to estimate the dynamic contribution to decadal-scale NH ozone trends. These calculations suggest that interannual. changes in EP flux contribute similar to20-30% of the observed trends in column ozone over 35-60degreesN during the past two decades.
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