conservative methods doesn't work about xesmf HOT 9 CLOSED

Does your source grid ds_in has corner values?

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The original netcdf file does have the corner values lon_bnds and lat_bnds. Maybe it's lost when opened using xarray?

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Use ds_in.rename({'lon_bnds: 'lon_b', 'lat_bnds: 'lat_b'}, inplace=True) so xESMF can recognize the name.

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I did this but still not working. The error this time is

ValueError: lon and lat should be both 1D or 2D

The original grid is curve-linear, so lab_b and lon_b are 3D arrays (a vertices dimension, plut the i and j dimensions).

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See #14 (comment)

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Thanks! I followed the suggestion there and manually changed the corners and it worked. One more thing. The regridding returned 0 rather than nan on grid points that have no data. I read some of the older posts and tried the conservative_normalized method but it didn't make a difference. Is it just a matter of removing 0 after regridding or more serious issues?

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I followed the suggestion there and manually changed the corners and it worked.

Glad to see that!

The regridding returned 0 rather than nan on grid points that have no data.

This is the same issue as #15. There's a temporary workaround at #15 (comment)

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That code does work. Thanks.

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Great. Let me know if there're further issues.

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