Dataset {
    Float32 T[T = 12];
    Float32 P[P = 9];
    Grid {
     ARRAY:
        Float64 int_dP[T = 12][P = 9];
     MAPS:
        Float32 T[T = 12];
        Float32 P[P = 9];
    } int_dP;
} int_dP;