Updated Matlab Scripts

[arango]

Several of the Matlab scripts in the matlab/grid directory of the repository where updated including the grids to process the contact points between nested grids.

New Scripts:

• check_refine.m: Checks a ROMS nested refinement grid structure. It generates and plots several information fields to check a refinement nested configuration. Several fields are averaged in the fine-to-coarse sense to check conservation properties.

• qc_interp.m: Interpolates requested field from ROMS coarse to a finer grid using 9-points quadratic conservative interpolation (Clark and Farley, 1984), such that the coarse-to-fine and fine-to-coarse are reversible.

• refined_gridvar.m: Sets requested refined grid variable from ROMS coarse grid by division or quadratic conservative interpolation (Clark and Farley, 1984).

Both functions qc_interp and refined_gridvar are not currently used. I haven't able to prove and verify the conservation properties discussed in Clark and Farley (1984).

Updated Scripts:

• add_mask.m: Adds land/sea masking array to specified NetCDF file that it is not a ROMS grid NetCDF file. It primarily used to add mask field to datasets to aid on spatial interpolations.

• coarse2fine.m: Updated interpolation strategy and many other little things.

• contact.m: Updated interpolation strategy and fixed the computing od the interpolation weights for composite grids.

• fine2coarse.m: Rewritten completely.

• get_roms_grid.m: Added domain perimeter at PSI-points to the grid structure.

• grid_connections.m: Added hybrid nesting option. It will be used in the future.