Martin Yeo

Let's have a go at the hashing solution!

# Summary from working group conversations `2023-02-02`, `2023-02-14`, `2023-03-22` Note this issue is not intended as a debate, hence why it is not posted as a discussion. The below conversations...

@bouweandela please could we try an alternative solution that changes the chunking of the original coordinates (the ones that make up the derived coordinate)? We know that users could override...

>This code was added with https://github.com/SciTools/iris/pull/4704 Unfortunately, I'm not sure that either contributor or reviewer will be available to re-discuss this, so we may need to make our own decision!...

@bouweandela suggests a possible future implementation that could be more efficient: making the weights array always a Dask array, then `compute()` only when needed, to avoid any memory footprint and...

In case it helps: https://github.com/SciTools/iris/blob/e9c77c05843c0c01947ca3e0927b1c7df0aad472/lib/iris/plot.py#L984-L996

> See the CF conventions for this projection for a more concrete statement of expected units: http://cfconventions.org/cf-conventions/cf-conventions.html#_geostationary_projection > > > The use of projection_x_coordinate and projection_y_coordinate was deprecated in version...

Brilliant, thanks again!

We expect that in many cases UGRID files will be loaded with no coordinate systems, since there is little detail about `grid_mapping` in relation to UGRID. There is some debate...

Hi @bblay. We are certainly aware that it is very difficult to understand compatibility issues. Whether we could act on your suggestion is super uncertain at the moment. We currently...