issue_comments: 647585666

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https://github.com/pydata/xarray/issues/4167#issuecomment-647585666 https://api.github.com/repos/pydata/xarray/issues/4167 647585666 MDEyOklzc3VlQ29tbWVudDY0NzU4NTY2Ng== 2448579 2020-06-22T15:20:21Z 2020-06-22T15:20:21Z MEMBER

Thanks for filing an issue @NickMortimer .

The transpose call is here and is used because apply_ufunc moves dimensions around so that the "core dimensions" are the last. The explicit transpose then moves the dimensions back to the original order: https://github.com/pydata/xarray/blob/b9e6a36ff7a0ca3593165cf191f4152666fa4a66/xarray/core/missing.py#L405-L421

Now transpose_coords=True is the default in our next release (#3824) so this warning will disappear.

Is there a reason why you want the coordinates to not have the same dimension order as the data? In that case, I would add another transpose call after ffill in your code.

 
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