Propagation of topographically trapped waves on aβ-plane
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Topographically trapped (subinertia) waves that propagate along a coast lying in an arbitrary direction on aβ-plane are studied. It is found that the waves also propagate in the direction normal to the coast within an envelope due to theβ-effect. The dispersion relation is hardly affected by theβ-effect except in a long wavelength or long period range in which generalized Haurwitz waves (Takeda, 1984b) exist. In the long wavelength or long period range, two types of waves exist: topographically trapped type waves and generalized Haurwitz type waves.
KeywordsDispersion Relation Period Range Type Wave Arbitrary Direction Haurwitz Wave
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