Model calculations of ozone depletion in the Arctic Polar Vortex for 1991/92 to 1994/95
書誌事項
- 公開日
- 1996-03
- 権利情報
-
- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
-
- 10.1029/95gl03334
- 公開者
- American Geophysical Union (AGU)
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説明
<jats:p>We have used a 3D chemical transport model to investigate the potential for chemical ozone depletion in the Arctic polar vortex for the past 4 winters. By using the same chemical initial conditions for each winter we have isolated the effects of meteorological variability on polar ozone loss. These calculations show that during 1994/95 conditions in the Arctic polar vortex were the most conducive to ozone depletion in recent years. Our numerical experiments show that at 475 K (around 18 km) in the lower stratosphere the chemical ozone destruction between late December and mid March was greater than 30% over a large area of the polar vortex. Larger percentage losses, reaching 50%, occur at slightly lower altitudes. The average model depletion in the entire region poleward of 60°N over the same period was around 22% at 475 K. Similar calculations for the preceding three Arctic winters show less depletion. The large depletion for 1994/95 is a consequence of the extreme meteorological conditions during this winter.</jats:p>
収録刊行物
-
- Geophysical Research Letters
-
Geophysical Research Letters 23 (5), 559-562, 1996-03
American Geophysical Union (AGU)
