Cyclone-Like Features Within the Stratospheric Polar-Night Vortex

• Main Authors: Davies, Huw C., Sprenger, Michael
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 2024
• Subjects: stratosphere; polar night vortex; cyclones; stirring; sudden stratospheric warming; barotropic instability; Merra; polar night
• Online Access: https://hdl.handle.net/20.500.11850/682602; https://doi.org/10.3929/ethz-b-000682602

Distinctive synoptic-scale (∼1,500 km) flow features are identified within the core of the stratospheric polar-night vortex at stratopause altitudes (∼50 km). Typically they comprise a train or a complex pattern of transient vortices, each characterized by enhanced values of potential vorticity (PV)...