After conda update, problem with cf_xarray: "Receive multiple variables for key 'longitude': ['i', 'lon']"

[eocene]

Hi all,

I'm using raw model output that looks like this:

And I'm getting this error message returned:

Everything working fine before I ran conda update.

Does anyone have an idea how to move forward? (instead of just reverting everything to old versions)

Thank you!

[dcherian]

can you show ds.i.attrs and ds.lon.attrs

[eocene]

Sure!

[malmans2]

The latest versions of xesmf have been developed here: https://github.com/pangeo-data/xESMF You are probably using xesmf 0.5.0 or 0.5.1, and I think you are experiencing this issue: https://github.com/pangeo-data/xESMF/pull/64

You have a few options:

• Downgrade to xesmf<0.5.0 (e.g. conda install -c conda-forge "xesmf!=0.5.0,!=0.5.1")
• The breaking change has been fixed but I don't think it was released yet. You could install from github (e.g., pip install git+https://github.com/pangeo-data/xESMF.git)

Alternatively, you have to create the regridder using a dataset with only one latitude/longitude coordinate, where the coordinates are defined by the standard_name attribute. For example, if you drop lon and lat in your dataset, xesmf will use the coordinates named i and j.

Looks like you already have installed cf_xarray, so for a recap of the cf attributes associated with your dataset:

import cf_xarray
ds.cf.describe()

[eocene]

Thanks yes, I had fixed it reverting back. Will wait for push to conda before doing update.

Cheers!