Changes in Column Ozone Correlated with the Stratospheric EP Flux

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概要

• 論文の詳細を見る

• 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 〜20-30% of the observed trends in column ozone over 35-60°N during the past two decades.

• 社団法人日本気象学会の論文
• 2002-09-25

著者

• Wu Fei

  National Center For Atmospheric Research

• Stolarski Richard

  Nasa Goddard Space Flight Center

• RANDEL william

  National Center for Atmospheric Research

関連論文

• Changes in Column Ozone Correlated with the Stratospheric EP Flux
• CHARACTERISTICS OF THE ANTARCTIC OZONE HOLE DERIVED FROM NIMBUS 7 TOMS DATA

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