Different input models should allow different variable names as input

[jfrost-mo]

What problem does your feature request solve?

LFRic and the UM use different names for the same field. This means that if you want to plot temperature you need air_temperature for the UM and temperature_at_screen_level for LFRic. You can't plot both for both models as one name will be missing from the data.

Describe the solution you'd like

Some way to specify a separate list of fields to process for each model.

Describe alternatives you've considered

• How does this interact with diagnostics that take from both models?
• Should we just be continuing after a failure?

[jfrost-mo]

This can be satisfied with the list of equivalent variables now provided in CSET. We just need to figure out how to plumb it through #858 and #492.

[jfrost-mo]

Fixed in #765.