issue_comments: 321599609

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https://github.com/pydata/xarray/issues/1506#issuecomment-321599609 https://api.github.com/repos/pydata/xarray/issues/1506 321599609 MDEyOklzc3VlQ29tbWVudDMyMTU5OTYwOQ== 1217238 2017-08-10T16:14:30Z 2017-08-10T16:14:30Z MEMBER

A first check of your theory (shoyer) reveals that if the time stamps are exectly the same, i.e. the date and the time is equal for each time step in the two netcdf-files, then the operation is working sucessfully.

Glad that worked!

I only have to find a way to harmonize both datasets for time values prior operations with xarray ( a hard task considering model and evaluation data).

We have a few tools that might be useful here: - Resampling: http://xarray.pydata.org/en/stable/time-series.html#resampling-and-grouped-operations - Nearest neighbor lookups with reindex: http://xarray.pydata.org/en/stable/indexing.html#nearest-neighbor-lookups

 
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