issue_comments: 1266619173

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https://github.com/pydata/xarray/issues/7111#issuecomment-1266619173 https://api.github.com/repos/pydata/xarray/issues/7111 1266619173 IC_kwDOAMm_X85LfxMl 167802 2022-10-04T08:53:46Z 2022-10-04T08:54:12Z CONTRIBUTOR

Thanks for pinging me. Regarding the ancillary variables, this comes from the CF conventions, allowing to "link" two or more arrays together. For example, we might have a radiance array, with quality_flags as an ancillary variable array, that characterises the quality of each radiance pixel. Now, in netcdf/CF, the ancillary variables are just references, but the logical way to do this in xarray is to use an ancillary_variables attribute to a DataArray. I'm not sure how we could do it in another way.

 
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