Dataset {
    Float32 X[X = 133];
    Float32 T[T = 533];
    Float32 Y[Y = 198];
    Grid {
     ARRAY:
        Float32 Prec[T = 533][Y = 198][X = 133];
     MAPS:
        Float32 T[T = 533];
        Float32 Y[Y = 198];
        Float32 X[X = 133];
    } Prec;
} monthly;