Dataset {
    Float32 lat[lat = 22];
    Float32 lon[lon = 21];
    Grid {
     ARRAY:
        Float64 int_dlon[lat = 22][lon = 21];
     MAPS:
        Float32 lat[lat = 22];
        Float32 lon[lon = 21];
    } int_dlon;
} int_dlon;