issue_comments: 495286200

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https://github.com/pydata/xarray/issues/2979#issuecomment-495286200 https://api.github.com/repos/pydata/xarray/issues/2979 495286200 MDEyOklzc3VlQ29tbWVudDQ5NTI4NjIwMA== 35968931 2019-05-23T16:15:54Z 2019-05-23T16:15:54Z MEMBER

Have you seen #1823? It sounds like you might be having the same issue: xarray loads coordinate information into memory to check alignment is correct, but for many datasets with large coordinate arrays this could be prohibitive.

You know your variables are aligned so you could try the workaround suggested in that thread: give the coordinates to drop_variables, then update them from a single master dataset (because presumably your latitude and longitude don't depend on time!)

 
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