html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/4118#issuecomment-1042769595,https://api.github.com/repos/pydata/xarray/issues/4118,1042769595,IC_kwDOAMm_X84-J2a7,5821660,2022-02-17T09:58:18Z,2022-02-17T09:58:18Z,MEMBER,"> in the representation I use the fully qualified name for the dimension / coordinate, but the corresponding `DataArray` will use the basename, e.g. both array will have `lat` as a coordinate. Sorry for te confusion, I need to add more context to the README.

Thanks for clarifying. I'm wondering if that can be a source of misunderstanding. How should the user differentiate that? I mean finally those dimensions which have the same name `lat` are different entities and it should be possible to tell them apart somehow. I think I'm slowly getting to the bottom of this (representation in dictionaries, duplicate keys) and I really need to look into the implementation. I'll open an issue over at xarray-datagroup if I have more questions to not clutter the discussion here.","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,628719058
https://github.com/pydata/xarray/issues/4118#issuecomment-1042731962,https://api.github.com/repos/pydata/xarray/issues/4118,1042731962,IC_kwDOAMm_X84-JtO6,5821660,2022-02-17T09:17:55Z,2022-02-17T09:17:55Z,MEMBER,"@alexamici 

> * in [netCDF following the CF conventions for groups](https://cfconventions.org/Data/cf-conventions/cf-conventions-1.9/cf-conventions.html#groups), it is legal for an array to refer to a dimension or a coordinate in a different group and so arrays in the same group may have dimensions with the same name, but different size / coordinate values, (this was the orginal motivation to explore the DataGroup approach)

I'm having difficulties to understand your above point wrt to the scoping rules from the above CF document. Shouldn't it be impossible to create two arrays (in the same group) having dimensions with exactly the same name from different groups? Looking at the example here https://github.com/alexamici/xarray-datagroup there are coordinates with name ""/lat"" vs ""lat"". Aren't that two different names? Maybe I'm missing something essential here. 







","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,628719058