Dataset {
    Int32 P[P = 8];
    Float32 X[X = 144];
    Float32 T[T = 252];
    Grid {
     ARRAY:
        Float64 rhum[T = 252][P = 8][X = 144];
     MAPS:
        Float32 T[T = 252];
        Int32 P[P = 8];
        Float32 X[X = 144];
    } rhum;
} rhum;