Dataset {
    Float32 sl[sl = 4];
    Float32 X[X = 227];
    Grid {
     ARRAY:
        Float64 BLD_d[sl = 4][X = 227];
     MAPS:
        Float32 sl[sl = 4];
        Float32 X[X = 227];
    } BLD_d;
} BLD_d;