Fig. 4
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Vertical inferred zonal wind velocity (panel a) and shear (du/dz) profiles (panel b) calculated from the temperature structure using the thermal wind equation. Wind velocities are shown from the cloud tops at 0.7 bar to 10 mbar. The shading indicates the uncertainty envelope, propagated from the temperature inversions (uncertainty estimation description in Sect. 2). Panel c: mean Brunt-Väisälä (buoyancy) frequency (N) in the lower stratosphere and upper troposphere region where the shading indicates the envelope of variability of the individual profiles.
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