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/6374#issuecomment-1090499559,https://api.github.com/repos/pydata/xarray/issues/6374,1090499559,IC_kwDOAMm_X85A_7Pn,1217238,2022-04-06T17:04:26Z,2022-04-06T17:04:26Z,MEMBER,"> > As it is currently it is also not possible to write a zarr which follows the [GDAL ZARR driver conventions](https://gdal.org/drivers/raster/zarr.html). Writing the _CRS attribute also results in a TypeError:
> 
> Can you elaborate? What API are you using to do the write: python, netcdf-c, or what?

This error message comes from Xarray and can be triggered by calling `to_zarr()`:
https://github.com/pydata/xarray/blob/facafac359c39c3e940391a3829869b4a3df5d70/xarray/backends/api.py#L162

I don't think netCDF-C needs to be involved at all, which is why I suggested opening a separate issue.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1172229856
https://github.com/pydata/xarray/issues/6374#issuecomment-1090464275,https://api.github.com/repos/pydata/xarray/issues/6374,1090464275,IC_kwDOAMm_X85A_yoT,1217238,2022-04-06T16:25:40Z,2022-04-06T16:25:40Z,MEMBER,@wankoelias could you kindly open a new issue for writing GDAL ZARR?,"{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1172229856
https://github.com/pydata/xarray/issues/6374#issuecomment-1076810559,https://api.github.com/repos/pydata/xarray/issues/6374,1076810559,IC_kwDOAMm_X85ALtM_,1197350,2022-03-23T20:54:39Z,2022-03-23T20:54:39Z,MEMBER,"Sure, to be clear, my hesitancy is mostly just around being reluctant to maintain more complexity in our zarr interface. If there is momentum to implement and maintain this compatibility, I am definitely not opposed. 🚀 ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1172229856
https://github.com/pydata/xarray/issues/6374#issuecomment-1076796582,https://api.github.com/repos/pydata/xarray/issues/6374,1076796582,IC_kwDOAMm_X85ALpym,1217238,2022-03-23T20:38:12Z,2022-03-23T20:38:12Z,MEMBER,"@DennisHeimbigner I think it would be great to standardize NCZarr as a super-set of the ""Xarray-Zarr"" standard! I think Xarray should indeed be able to read such files. If you want to read a sub-group, you can read the sub-group in a separate call to `xarray.open_zarr()`.

@rabernat  I would not be opposed to adding support inside Xarray for reading NCZarr data, specifically to understand NCZarr's encoding of dimension names when using Zarr-Python. This wouldn't give 100% compatibility with NCZarr, but it would be very close (maybe just with incorrect dtypes for attributes) with a minimal amount of work. I don't think it would be a big deal to look for `.nczvar` files.","{""total_count"": 3, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 2, ""rocket"": 0, ""eyes"": 0}",,1172229856
https://github.com/pydata/xarray/issues/6374#issuecomment-1076622767,https://api.github.com/repos/pydata/xarray/issues/6374,1076622767,IC_kwDOAMm_X85AK_Wv,1197350,2022-03-23T17:39:57Z,2022-03-23T17:39:57Z,MEMBER,"My opinion is that we should not try to support the nczarr conventions directly. _Xarray already supports nczarr via netCDF4_. If netCDF4 can open the Zarr store, then Xarray can read it.

Supporting nczarr directly would require lots of custom logic within xarray. That's because nczarr introduces several additional metadata files that are not part of the zarr spec. These additional metadata files break the abstractions through which xarray interacts with zarr; working around this requires going under the hood, access the store object directly (rather than the zarr groups and arrays).

I would turn this question around and ask: _if netCDF4 supports access to these datasets directly, what's the advantage of xarray bypassing netCDF4 and opening them directly?_ If there are significant performance benefits, I would be more likely to consider it worthwhile.","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1172229856
https://github.com/pydata/xarray/issues/6374#issuecomment-1076592711,https://api.github.com/repos/pydata/xarray/issues/6374,1076592711,IC_kwDOAMm_X85AK4BH,5635139,2022-03-23T17:14:30Z,2022-03-23T17:14:30Z,MEMBER,CC @pydata/xarray ,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1172229856