<ns0:netcdf xmlns:ns0="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" title="NEMO aggregation">
  <ns0:aggregation type="union">
    <ns0:netcdf location="file:domain_cfg.nc">
    <ns0:variable name="mbathy" orgName="top_level" />
    <ns0:variable name="e3u" orgName="e3u_0" />
    <ns0:variable name="e3v" orgName="e3v_0" />
    </ns0:netcdf>
  </ns0:aggregation>
</ns0:netcdf>