After an initial adjustment time of about 2-3 months a circumpolar storm track develops on the Northern (Winter) Hemisphere while there is comparatively little activity on the Southern (Summer) Hemisphere.
This animation shows a wave breaking event of the 500 hPa geopotential height field in a 5-days PUMA run with T1365 spatial resolution.
After an initial adjustment time of about 2-3 months a circumpolar storm track develops on the Southern (Winter) Hemisphere while there is comparatively little activity on the Northern (Summer) Hemisphere.
Animation of the mean sea-level pressure during a 365 day PUMA run.
