html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/2213#issuecomment-394718239,https://api.github.com/repos/pydata/xarray/issues/2213,394718239,MDEyOklzc3VlQ29tbWVudDM5NDcxODIzOQ==,7643370,2018-06-05T13:55:30Z,2018-06-05T13:55:30Z,NONE,"@shoyer I created a [notebook ](https://github.com/esa-esdl/esdl-core/blob/master/notebooks/xarray_2213.ipynb) to reproduce this issue with self-contained dummy data and I think I know when this issue occurs. 

In both cases (my original application and in the notebook example), the time dimension of the DataArray comes with time. When selecting it using **_.sel_**, when time is specified with date and time, the returned DataArray is rightly 2D. However, when the time selection includes only the date (when calling xarray.Dataset.sel), the return includes an unexpected time dimension. In the notebook example, the time dimension is 1 because it could find the right date whereas in my application, time dimension is 0 because it could not find the queried date. I am not sure what is the expected behaviour here.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,329066551
https://github.com/pydata/xarray/issues/2213#issuecomment-394371429,https://api.github.com/repos/pydata/xarray/issues/2213,394371429,MDEyOklzc3VlQ29tbWVudDM5NDM3MTQyOQ==,7643370,2018-06-04T14:19:29Z,2018-06-04T14:19:29Z,NONE,"@jhamman - yes I can reproduce this also in 0.10.6. 

<details>
INSTALLED VERSIONS
------------------
commit: None
python: 3.5.2.final.0
python-bits: 64
OS: Windows
OS-release: 10
machine: AMD64
processor: Intel64 Family 6 Model 63 Stepping 2, GenuineIntel
byteorder: little
LC_ALL: None
LANG: None
LOCALE: None.None

xarray: 0.10.6
pandas: 0.19.0
numpy: 1.11.3
scipy: 1.1.0
netCDF4: 1.2.2
h5netcdf: 0.2.2
h5py: 2.6.0
Nio: None
zarr: None
bottleneck: 1.2.1
cyordereddict: 1.0.0
dask: 0.14.1
distributed: 1.21.8
matplotlib: 2.2.2
cartopy: None
seaborn: 0.8.1
setuptools: 27.2.0.post20161106
pip: 9.0.1
conda: None
pytest: 3.6.0
IPython: 6.4.0
sphinx: None

</details>","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,329066551