Martin Yeo

Thanks @nhsavage, this is a known area to the devs, so it's good to have it flagged here 👍

@SciTools/peloton: this is a known limitation due to our minimal implementation; good to have it recorded officially. It is unclear when we will have resource to address this. Any information...

#137 relates

> @pp-mo I think this is still applicable. > > To make it more concrete, the target is to adopt documentation patterns and infrastructure akin to SciTools/iris > > Perhaps...

Good news: we discovered a secret feature :godmode: !  This gets used very rarely, and isn't even documented, so it has faded from developers' memory, but it is there....

> - [x] Add [MyPy](https://github.com/python/mypy) to Iris' pre-commit hooks, initially non-strict and with as many exceptions as necessary #5956

@matthew-mizielinski has confirmed that data like this currently generates 1 `Cube` for each time point, rather than a single `Cube` with a time dimension.

It will be problematic for UK Met Office strategy (climate - IPCC) if this misses the 3.11 (October) release.

> I believe it is currently possible to construct a hybrid height coordinate that varies over time. What is not possible is to merge multiple 2D cubes with varying orographies...

>I am also completely fine to include this into ESMValCore, so we can close this if this is not relevant for you. I reckon further discussion first, now we have...