Dataset {
    Float32 T[T = 60];
    Float32 X[X = 18];
    Grid {
     ARRAY:
        Float64 int_dX[T = 60][X = 18];
     MAPS:
        Float32 T[T = 60];
        Float32 X[X = 18];
    } int_dX;
} int_dX;