cdm/src/main/java/ucar/nc2/dataset/conv/CSMConvention.java
protected void findCoordinateAxes(NetcdfDataset ds) {

    // coordinates is an alias for _CoordinateAxes
    for (VarProcess vp : varList) {
      if (vp.coordAxes == null) { // dont override if already set
        String coordsString = ds.findAttValueIgnoreCase(vp.v, CF.COORDINATES, null);
        if (coordsString != null) {
          vp.coordinates = coordsString;
        }
      }
    }

    super.findCoordinateAxes(ds);
  }
protected void findCoordinateAxes(NetcdfDataset ds) {

    // coordinates is an alias for _CoordinateAxes
    for (VarProcess vp : varList) {
      if (vp.coordAxes == null) { // dont override if already set
        String coordsString = ds.findAttValueIgnoreCase(vp.v, CF.COORDINATES, null);
        if (coordsString != null) {
          vp.coordinates = coordsString;
        }
      }
    }

    super.findCoordinateAxes(ds);
  }
The attribute "coordinates" is an alias for _CoordinateAxes.