Parcels has specific methods for loading B-grid and C-grid datasets, but not for A-grids. This is because A-grid (linear) interpolation is default, so FieldSet.from_netcdf() automatically assumes an A-grid.

However, for consistency and to help new users, it might be nice to add an explicit FieldSet.from_a_grid_dataset() method to Parcels. This method would then simply call from_netcdf().

Note that while this is done, it might also be good to update a few mentions of from_bgrid() and from_cgrid() in the docstrings to the correct from_b_grid_dataset() and from_c_grid_dataset()