Update make_grid.m. Save downgraded bathymetry, before filtering and...

Update make_grid.m. Save downgraded bathymetry, before filtering and smoothing, in GRD file to help bathymetry change evaluation.

Preprocessing_tools/make_grid.m

@@ -201,6 +201,7 @@ maskr=process_mask(maskr);
 %
 nc=netcdf(grdname,'write');
 nc{'h'}(:)=h;
+nc{'hraw'}(1,:,:)=h;
 nc{'mask_u'}(:)=masku;
 nc{'mask_v'}(:)=maskv;
 nc{'mask_psi'}(:)=maskp;