Investigate xarray argument: http://xarray.pydata.org/en/stable/generated/xarray.open_dataset.html

[agstephens]

Description

I have seen that xarray now has the following parameter for open_*dataset() and open_dataarray():

decode_coords (bool or {"coordinates", "all"}, optional) – Controls which variables are set as coordinate variables:

• “coordinates” or True: Set variables referred to in the 'coordinates' attribute of the datasets or individual variables as coordinate variables.
• “all”: Set variables referred to in 'grid_mapping', 'bounds' and other attributes as coordinate variables.

http://xarray.pydata.org/en/stable/generated/xarray.open_dataset.html

We should investigate whether to use it as a standard part of our opener.