Working With ICON Grids

ICON grid files store cell centers and vertices in radians. ARTist provides helpers to convert those coordinates to degrees and use them with xarray data.

Attach Grid Coordinates

ds.icon.add_grid("icon_grid.nc")

clon = ds.icon.clon
clat = ds.icon.clat

Find Nearest Native Cells

points = [[13.0, 52.0], [14.0, 53.0]]
gridpoints = ds.icon.nearest_gridpoints(points)

Regrid A DataArray

ds.icon.add_grid("icon_grid.nc")
regular = ds["ash_mixed_acc"].icon.regrid(lon, lat)