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issues: 350899839

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
350899839 MDU6SXNzdWUzNTA4OTk4Mzk= 2368 Let's list all the netCDF files that xarray can't open 1197350 closed 0     32 2018-08-15T17:41:13Z 2023-11-30T04:36:42Z 2023-11-30T04:36:42Z MEMBER      

At the Pangeo developers meetings, I am hearing lots of reports from folks like @dopplershift and @rsignell-usgs about netCDF datasets that xarray can't open.

My expectation is that xarray doesn't have strong requirements on the contents of datasets. (It doesn't "enforce" cf compatibility for example; that's optional.) Anything that can be written to netCDF should be readable by xarray.

I would like to collect examples of places where xarray fails. So far, I am only aware of one:

  • Self-referential multidimensional coordinates (#2233). Datasets which contain variables like siglay(siglay, node). Only siglay(siglay) would work.

Are there other distinct cases?

Please provide links / sample code of netCDF datasets that xarray can't read. Even better would be short code snippets to create such datasets in python using the netcdf4 interface.

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