Influence of the spatial distribution of gravity wave activity on the middle atmospheric dynamics

Šácha, Petr; Lilienthal, Friederike; Jacobi, Christoph; Pišoft, Petr

doi:https://doi.org/10.5194/acp-16-15755-2016

Articles | Volume 16, issue 24

https://doi.org/10.5194/acp-16-15755-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-15755-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 24

Research article

|

21 Dec 2016

Research article |

| 21 Dec 2016

Influence of the spatial distribution of gravity wave activity on the middle atmospheric dynamics

Petr Šácha, Friederike Lilienthal, Christoph Jacobi, and Petr Pišoft

Supplement

https://doi.org/10.5194/acp-16-15755-2016-supplement

Video supplement

Animation 2 P. Šácha https://doi.org/10.5446/20494

Animation of longitudinal cross-sections of residual vertical velocity (Animation 4) P. Šácha https://doi.org/10.5446/20493

Animation 1a P. Šácha https://doi.org/10.5446/20495

Animation 1b P. Šácha https://doi.org/10.5446/20497

Animation 3 P. Šácha https://doi.org/10.5446/20500

Short summary

With a mechanistic model for the middle and upper atmosphere we performed sensitivity simulations to study a possible impact of a localized GW breaking hotspot in the eastern Asia–northern Pacific region and also the possible influence of the spatial distribution of gravity wave activity on the middle atmospheric circulation and transport. We show implications for polar vortex stability, in situ PW generation and longitudinal variability and strength of the Brewer–Dobson circulation.