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C-grid

A C-grid is a composite grid whereby three variables are solved for. It is composed of three subgrids. The first subgrid shows a mesh for the variable (free surface height), the second shows a mesh for the variable U (West--East transport), and the third shows a mesh for the variable V (North--South transport). The overlay with the respective shifts (see Figure 16, Figure 17 and Figure 18) comprises the composite grid.