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Daley, Roger (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
The properties of 3 types of linear non-divergent mass-wind laws on the sphere have been examined: linear-balance equation, spherical harmonic expansions of the linearized primitive equations, and Rossby-Hough expansions. Both the symmetric and antisymmetric non-zonal cases are examined. The results show that all 3 methods are virtually equivalent for the antisymmetric case, but differ considerably for the symmetric case. All 3 methods, whether derived from the primitive equations or from a filtering approximation, appear to be singular at the equator in the symmetric case.DOI: 10.1111/j.1600-0870.1983.tb00181.x
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