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https://github.com/pydata/xarray/issues/1215#issuecomment-336213748 https://api.github.com/repos/pydata/xarray/issues/1215 336213748 MDEyOklzc3VlQ29tbWVudDMzNjIxMzc0OA== 1217238 2017-10-12T17:46:42Z 2017-10-12T17:46:42Z MEMBER

Is it now possible to append to a netCDF file using xarray?

No, it is not. This issue is about appending new variables to an existing netCDF file.

I think what you are looking for is to append along existing dimensions to a netCDF file. This is possible in the netCDF data model, but not yet supported by xarray. See https://github.com/pydata/xarray/issues/1398 for some discussion.

For these types of use cases, I would generally recommend writing a new netCDF file, and then loading everything afterwards using xarray.open_mfdataset.

 
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