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Fig. 7.

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Propagation diagrams of models A–D. The Lamb (S) and reduced Lamb ( S ) $ (\tilde{S}) $ frequencies are shown as blue and green lines, the Brunt-Väisälä (N) and reduced Brunt-Väisälä ( N ) $ (\tilde{N}) $ frequencies are shown as orange and red lines. νmax is shown as a black line where the dashed part is inside the g-cavity, dotted part in the EZ, and solid part in the p-cavity.

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