Dataset {
  Grid {
    ARRAY:
      Float32 icethick[time = 516][lat = 1][lon = 106];
    MAPS:
      Float64 time[time = 516];
      Float64 lat[lat = 1];
      Float64 lon[lon = 106];
  } icethick;
  Float64 time[time = 516];
  Float64 lat[lat = 1];
  Float64 lon[lon = 106];
} gswp/field/HIRDR_ice_mon;