Fig. 4

Transmission rate TF of the wave action flux across the co-rotation when the box is located at the pole for R > 1∕4. It is displayed against the Rossby number Ro and the ratioof the horizontal wavenumbers αk = kz∕kx. The forbidden region where R < 1∕4 is shown in white, and the dark red cone corresponds to values of TF that are lower than 10−9.
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