issue_comments: 492623485

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https://github.com/pydata/xarray/issues/2962#issuecomment-492623485 https://api.github.com/repos/pydata/xarray/issues/2962 492623485 MDEyOklzc3VlQ29tbWVudDQ5MjYyMzQ4NQ== 10050469 2019-05-15T11:55:17Z 2019-05-15T11:55:17Z MEMBER

But I can't figure out what was the code doing without create this new one "common dimension"

It is doing what is called "orthogonal indexing", but with interpolation. The resulting shape of the output is then (2, 2, 2) in your case, but could be any (t, y, x) as given by the size of each dimension indexer.

Maybe this helps a little: http://xarray.pydata.org/en/stable/indexing.html#vectorized-indexing

 
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