Stratospheric ozone loss over the Eurasian continent induced by the polar vortex shift - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Nature Communications Année : 2018

Stratospheric ozone loss over the Eurasian continent induced by the polar vortex shift

Fei Xie
  • Fonction : Auteur
  • PersonId : 1007131
Slimane Bekki

Résumé

The Montreal Protocol has succeeded in limiting major ozone-depleting substance emissions, and consequently stratospheric ozone concentrations are expected to recover this century. However, there is a large uncertainty in the rate of regional ozone recovery in the Northern Hemisphere. Here we identify a Eurasia-North America dipole mode in the total column ozone over the Northern Hemisphere, showing negative and positive total column ozone anomaly centres over Eurasia and North America, respectively. The positive trend of this mode explains an enhanced total column ozone decline over the Eurasian continent in the past three decades, which is closely related to the polar vortex shift towards Eurasia. Multiple chemistry-climate-model simulations indicate that the positive Eurasia-North America dipole trend in late winter is likely to continue in the near future. Our findings suggest that the anticipated ozone recovery in late winter will be sensitive not only to the ozone-depleting substance decline but also to the polar vortex changes, and could be substantially delayed in some regions of the Northern Hemisphere extratropics.
Fichier principal
Vignette du fichier
zhang.pdf (6.68 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

insu-01705720 , version 1 (11-01-2020)

Identifiants

Citer

Jiankai Zhang, Wenshou Tian, Fei Xie, Martyn Chipperfield, Wuhu Feng, et al.. Stratospheric ozone loss over the Eurasian continent induced by the polar vortex shift. Nature Communications, 2018, 9, pp.206(2018). ⟨10.1038/s41467-017-02565-2⟩. ⟨insu-01705720⟩
588 Consultations
39 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More