Error on using xarray open_mfdataset function
<p>I am trying to combine multiple netCDF files with the same dimensions, their dimensions are as follows:</p>

<pre><code>OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
OrderedDict([(u'lat', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lat', size = 720
), (u'lon', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'lon', size = 1440
), (u'time', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'time', size = 96
), (u'nv', &lt;type 'netCDF4._netCDF4.Dimension'&gt;: name = 'nv', size = 2
)])
</code></pre>

<p>However, on using open_mfdataset, I get this error:</p>

<pre><code>xr.open_mfdataset(path_file, decode_times=False)

*** ValueError: cannot infer dimension to concatenate: supply the ``concat_dim`` argument explicitly
</code></pre>

<p>How to fix this error? My dimensions are the same in all the files</p>