Spec:9.6.8
- cartesian_nonuniform_1d
cartesianfinite_difference
DD2
dirichletneumannzero_fluxzero_gradient
Non-uniform 1-D Cartesian grid with consumer-supplied edge geometry: N cell-centered points whose spacing varies along x.
- cartesian_uniform_1d
cartesianfinite_differencefinite_volume
DD2fluxgrad_normlimiterreconstructvarcoeff_laplacian
dirichletinflowneumannperiodiczero_fluxzero_gradient
Uniform 1-D Cartesian grid with consumer-supplied extent: N cell-centered points, cell centers x_i = x0 + (i - 1/2) dx.
- cartesian_uniform_2d
cartesianfinite_difference
DD2Dxygrad_normvarcoeff_laplacian
dirichletneumannperiodiczero_fluxzero_gradient
Uniform 2-D Cartesian grid with consumer-supplied extent: NX by NY cell-centered points, cell centers (x_i, y_j) = (x0 + (i - 1/2) dx, y0 + (j - 1/2) dy).
- duo
duofinite_volume
arc_lengthbasis_coscorner_fillcrossflux_divergencehalo_extendkinetic_energymetricmomentum_umomentum_vpgrad_direct_upgrad_direct_vpgrad_l97_upgrad_l97_vreconstructriemannspherical_angletangentupwindwavespeedwind_assywind_rotatewind_solve
duo
Generic gnomonic cubed-sphere grid with the duo-grid halo system of Chen (2021): six N-by-N tiles interlocked in the 'staircase' arrangement, 6 N^2 cells, unstaggered (A-grid) so every prognostic variable is collocated at cell centres.
- latlon
finite_differencefinite_volumelatlon
DD2laplacian
periodiczero_gradient
Uniform longitude-latitude grid with consumer-supplied extent (global or regional).
- latlon3d
finite_differencefinite_volumelatlon
Dadvectiondivfluxlimiterreconstructvarcoeff_laplacian
inflowno-fluxperiodicrobinzero-gradientzero_gradient
Three-dimensional longitude-latitude-level grid: the 2-D grids/latlon horizontal mesh extended with a vertical `lev` axis, for 3-D tracer transport on a lat-lon model such as GEOS-Chem Classic.
- mpas
finite_volumempas
divgradlaplacian
none
MPAS unstructured spherical centroidal-Voronoi (icosahedral) C-grid on the unit sphere: NCELLS Voronoi cells, NEDGES edges, NVERTICES triangle vertices, with cell valence bounded by MAXEDGES (on a closed sphere the Euler relations give NEDGES = 3*(NCELLS - 2) and NVERTICES = 2*(NCELLS - 2), but the three counts stay independent metaparameters so planar or open meshes can reuse the file).