bufr/src/main/java/ucar/nc2/iosp/bufr/DataDescriptor.java
DataDescriptor makeAssociatedField(int bitWidth) {
    DataDescriptor assDD = new DataDescriptor();
    assDD.name = name + "_associated_field";
    assDD.units = "";
    assDD.refVal = 0;
    assDD.scale = 0;
    assDD.bitWidth = bitWidth;
    assDD.type = 0;

    assDD.f = 0;
    assDD.x = 31;
    assDD.y = 22;
    assDD.fxy =  (short) ((f << 14) + (x << 8) + (y));

    return assDD;
  }
DataDescriptor makeAssociatedField(int bitWidth) {
    DataDescriptor assDD = new DataDescriptor();
    assDD.name = name + "_associated_field";
    assDD.units = "";
    assDD.refVal = 0;
    assDD.scale = 0;
    assDD.bitWidth = bitWidth;
    assDD.type = 0;

    assDD.f = 0;
    assDD.x = 31;
    assDD.y = 22;
    assDD.fxy =  (short) ((f << 14) + (x << 8) + (y));

    return assDD;
  }
for associated fields