Coregistration should be able to handle datasets with more dimensions than lat/lon/time

[JanisGailis]

Currently coregistration works well only if both datasets to coregister have lat/lon/time dimensions. This should not be the case, as it should be possible to bring two datasets on the same spatial lat/lon grid irrespective of how many other dimensions there are.

For example, having two datasets with such dimensions:

lat/lon/time

lat/lon/time/layer/pressure,

it should be possible to resample the second dataset to the lat/lon resolution of the first one such that it still preserves the other dimensions. E.g., instead of only 'group_by' time, but somehow other dimensions as well.

[JanisGailis]

There has not been a clear need identified for this at the moment. Subject to re-opening if the need arises.