Feature request: Unidirectional Resampling

[agheysari]

Adding the unidirectional resampling (lat or lon) option would make ds.resample_grid() more versatile.
An example case for such option would be working on a global dataset with regular lat/lon that is cropped around the arctic circle. The density of meridians close to the poles usually causes very long cells in N-S direction, which could be fixed by ds.resample_grid() if it supports resampling the longitudes.

[robertjwilson]

Hi @afgheysari

This sounds like a useful enhancement for polar applications. I cannot see a quick way to add it in, but I will think about it.

The underlying CDO method used by resample_grid does not allow unidirectionarl resampling. So I would need to find an alternative.

Potentially, the to_latlon method could be made more flexible, so that it lets users easily change the resolution of a latlon grid file. This might do what you are suggesting, though only for latlon grids.