cdm/src/main/java/ucar/nc2/iosp/nids/Nidsheader.java
public int[] getDualpolLevels(  short[] th) {

        int inc = th.length;
        int [] levels = new int[ inc]; //th[2] ];
        for ( int i = 0; i < inc; i++ ) {    /* calibrated data values        */
            levels[i] = th[i];
        }

        return levels;
    }
public int[] getDualpolLevels(  short[] th) {

        int inc = th.length;
        int [] levels = new int[ inc]; //th[2] ];
        for ( int i = 0; i < inc; i++ ) {    /* calibrated data values        */
            levels[i] = th[i];
        }

        return levels;
    }
get the calibrate data values for dualpol data
@param th
@return