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The next plot shows what NCL refers to as the fixed offset grid (aka Uniform). Gaussian grids This is the internal CAM-FV velocity grid. CAM-FV can output these velocities if you ask for 'US' or 'VS' in the history. The 'U' and 'V' data in CAM-FV history has been interpolated to the fixed grid shown above. Gaussian grids (used by CAM-EUL) look nearly identical to these offset grids, except Gaussian grids use a spacing in latitude which is not quite equi-angular. A grid with the same equal spacing in both latitude and longitude will have dimensions N x 2N.
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