Three‐dimensional algorithms for the numerical computation of flows caused by tides or meteorological forcing are developed for four of Arakawa's spatial grid types using a spectral method in the vertical dimension. Three of the grids, in which the velocity components are computed at the same grid points, offer potential advantages over the commonly used C‐grid. The computed results from the four grids are compared for three test problems based on the linearized hydrodynamical equations. It is concluded that the B‐grid provides a viable alternative to the C‐grid, with significant advantages when a spectral method is used.
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Lardner et al. (1992) studied this question.
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