Topogaphy with PG grids - NCAR/StormSPEED GitHub Wiki
E3SM's approach is here:
https://acme-climate.atlassian.net/wiki/spaces/DOC/pages/2712338924/V3+Topography+GLL+PG2+grids
E3SM's approach is here:
https://acme-climate.atlassian.net/wiki/spaces/DOC/pages/2712338924/V3+Topography+GLL+PG2+grids