Weather and Climate Dynamics
Weather and Climate Dynamics
WCD
Articles | Volume 6, issue 4
Articles | Volume 6, issue 4
https://doi.org/10.5194/wcd-6-1491-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wcd-6-1491-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 4
Research article
 | 
20 Nov 2025
Research article |  | 20 Nov 2025

Non-zonal gravity wave forcing of the Northern Hemisphere winter circulation and effects on middle atmosphere dynamics

Sina Mehrdad, Sajedeh Marjani, Dörthe Handorf, and Christoph Jacobi

Data sets

UA-ICON Current-Climate Simulation: Control Run (C) Sina Mehrdad et al. https://doi.org/10.26050/WDCC/UAICON_GW_C

UA-ICON Current-Climate Simulation: Himalayas Gravity Wave Forcing (HI) Sina Mehrdad et al. https://doi.org/10.26050/WDCC/UAICON_GW_HI

UA-ICON Current-Climate Simulation: Northwest America Gravity Wave Forcing (NA) Sina Mehrdad et al. https://doi.org/10.26050/WDCC/UAICON_GW_NA

UA-ICON Current-Climate Simulation: East Asia Gravity Wave Forcing (EA) Sina Mehrdad et al. https://doi.org/10.26050/WDCC/UAICON_GW_EA

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Short summary
Wind flowing over mountains creates wave-like patterns aloft that can influence the atmosphere higher up in the stratosphere and mesosphere. In this study, we intensified these waves over specific regions like the Himalayas and Rocky Mountains and examined the resulting climate effects. We found that this can shift global wind patterns and even impact extreme events near the poles, showing how small regional changes in stratospheric wind patterns can influence the broader climate system.
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