Unique test on list of FaDatasets

[vergauwenthomas]

Before combining xarray Datasets, ideally there is a check to test if all elements are unique. But then we must define what makes an FA file (in experimental setup) unique.

Ideally, we can let the user define this, but by default we can define the unique dimensions as :

• validate (required by climate and nwp applications)
• basedate (required by nwp applications)
• member (required by ensemble applications)

Am i missing something?

[kobebryant432]

I think that covers it. Member could cover a wide range of experiments (initial condition ensembles, different LBCs, different physics). We still need to think how the member will be defined. Is this an attribute in the FA file? Or does a user have to specify this somehow?

This is different than basedate and validate which should be well defined in an FA file.