Potential Improvements

[alioacar]

Hi @robertjwilson. First of all, thanks! it's a very useful tool.
With a few styling adjustments, I can generate a really good report. Here's an example

and here are a few improvement suggestions:

• defining python level cores and cdo cores separately might better solve RAM issues but I haven't looked at the cdo/nctoolkit parallelism yet and don't know much about it.
• unstructured grid support (you mentioned in the docs) can easily be implemented. I recently added face-centered field to structured grid regridding to xESMF, and I'll be adding the node-centered part soon. xESMF can be used for this purpose.
• with a few small additions, oceanval could support a multi-model workflow where several different models or versions are compared against the same observation set (instead of relying on user written loops)