Dynamical contribution to formation of an ozone mini hole in the Northern Hemisphere in mid-winter

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概要

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• Ozone mini holes are localized and transient (several days) column ozone amount depletion phenomena which often appear over northern Europe. In early February 1989, the extremely low ozone value of 172 DU was observed by Total Ozone Mapping Spectrometer observation. Quantitative analyses of this event using a forward and backward trajectory method show that the total ozone depletion is by uplift of air throughout the lower stratosphere, whereas the effect of horizontal advection of ozone-poor air from lower latitudes is relatively small. Similar results are obtained for 4 other severe mini hole cases. However, these two dynamical effects cannot fully explain the total ozone depletion, which implies the existence of other possible processes responsible for ozone mini holes.

• 国立極地研究所の論文

著者

• Hirooka Toshihiko

  Department Of Earth And Planetary Sciences Kyushu University

• Iwao Koki

  Department of Earth and Planetary Sciences, Kyushu University

• Iwao Koki

  Department Of Earth And Planetary Sciences Kyushu University

関連論文

• Predictability of the Downward Migration of the Northern Annular Mode : A Case Study for January 2003
• Interannual Variations of the General Circulation and Polar Stratospheric Ozone Losses in a General Circulation Model
• INFLUENCES OF ARCTIC OZONE HOLE ON THE STRATOSPHERIC GENERAL CIRCULATION
• Dynamical contribution to formation of an ozone mini hole in the Northern Hemisphere in mid-winter
• Predictability of Stratospheric Sudden Warmings as Inferred from Ensemble Forecast Data : Intercomparison of 2001/02 and 2003/04 Winters

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