Please see the respective links for guidance and workarounds.
- For spectral data, when grid=128 is selected, automatic truncation to T213 occurs.
- The option "Grid default (as archived)" gives a 0.75x0.75 lat/long grid for both spectral and grid point data, again with automatic truncation to T213 for spectral fields.
- The Gaussian grids all appear to be full grids, not reduced, with no means of requesting the latter.
- There is no T255 option