Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 38, issue 1
Articles | Volume 38, issue 1
https://doi.org/10.5194/angeo-38-95-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-38-95-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 38, issue 1
Regular paper
 | 
23 Jan 2020
Regular paper |  | 23 Jan 2020

Impact of local gravity wave forcing in the lower stratosphere on the polar vortex stability: effect of longitudinal displacement

Nadja Samtleben, Aleš Kuchař, Petr Šácha, Petr Pišoft, and Christoph Jacobi

Viewed

Total article views: 1,945 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,281 592 72 1,945 83 77
  • HTML: 1,281
  • PDF: 592
  • XML: 72
  • Total: 1,945
  • BibTeX: 83
  • EndNote: 77
Views and downloads (calculated since 23 Aug 2019)
Cumulative views and downloads (calculated since 23 Aug 2019)

Viewed (geographical distribution)

Total article views: 1,945 (including HTML, PDF, and XML) Thereof 1,801 with geography defined and 144 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 29 May 2025
Download
Short summary
The additional transfer of momentum and energy induced by locally breaking gravity wave hotspots in the lower stratosphere may lead to a destabilization of the polar vortex, which is strongly dependent on the position of the hotspot. The simulations with a global circulation model show that hotspots located above Eurasia cause a total decrease in the stationary planetary wave (SPW) activity, while the impact of hotspots located in North America mostly increase the SPW activity.
Read more
Share