using the NOAA/NOS standardized hydrodynamic model NetCDF format:
https://sourceforge.net/projects/oceanmodelfiles
The first plot shows the triangular mesh itself, the second shows simple contours on the triangular mesh, the third shows colored contour bands drawn by CONPACKT on the triangular mesh by using CTCLAM to put the contour lines in an area map, and the fourth shows colored contour bands drawn by CONPACKT on the triangular mesh by using CTCICA to put color indices in a cell array: