Spherical
- centered_2nd_uniform_latlon
finite_difference
latlon
scheme
O(h²)
Centered second-order finite difference on a regular lat-lon grid, with the standard cos λ metric on the longitudinal stencil.
- Cubed-sphere
cubed_sphere
grid
Six gnomonic panels covering the sphere; in-panel curvilinear (ξ, η) coordinates with cross-panel ghost stitching.
- Lat-Lon
latlon
grid
Regular spherical lat-lon mesh with metric corrections for the spherical surface.
- MPAS
mpas
grid
Quasi-uniform Voronoi mesh on the sphere with icosahedral dual (12 pentagons + hexagons).