Table 2
Summary of analytical results at each critical level when the box is inclined or not with respect to the rotation axis, in the [0, π∕2] quadrant, and for positive wavenumbers.
| Box | Critical level | Attenuation | Amplification |
|---|---|---|---|
 |
yes for waves ↓ | No | |
Inclined box  |
 |
Yes for waves ↑ | No |
| σ = 0 | No | No | |
| Pole (θ0 = 0) | σ = 0 |  |
Yes if  |
| Equator (θ0 = π∕2) | σ = ± 1 | \ | \ |
| σ = 0 | No | No | |
Notes. The table indicates whether each critical level can cause attenuation or amplification of the (upward
↑ and downward
↓) travelling wave in the
y direction, which depends, notably at the pole, on 
and on the wave action flux above the critical level 
. The symbol \ indicates that no wave action flux is carried across the critical level. Moreover, the results are analogous in the otherquadrants of the spherical body (with the direction of the attenuated wave through
varying according to sign(kzf)).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.