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Table 1.

Comparison between the frequencies obtained for a sample of different types of waves (see Sect. 3.1) presented in Thuburn et al. (2002) and those identified in this work using ECLIPS3D.

Mode Acoustic Acoustic Gravity Rossby Rossby Kelvin
Thuburn 3.27 × 10−2 2.87 × 10−4 1.88 × 10−4 −1.46 × 10−5 −3.07 × 10−6 3.14 × 10−5
ECLIPS3D 3.28 × 10−2 2.87 × 10−4 1.88 × 10−4 −1.46 × 10−5 −3.02 × 10−6 3.08 × 10−5
Energy equation 3.37 × 10−2 2.86 × 10−4 1.88 × 10−4 −1.46 × 10−5 −3.08 × 10−6 3.00 × 10−5

Notes. The semi-analytical values from the a posteriori energy equation are also given. All these modes have a longitudinal wavenumber m = 1.

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