Dataset {
    Float32 T[T = 432];
    Float32 Y[Y = 202];
    Float32 X[X = 145];
    Grid {
     ARRAY:
        Float32 PET[T = 432][Y = 202][X = 145];
     MAPS:
        Float32 T[T = 432];
        Float32 Y[Y = 202];
        Float32 X[X = 145];
    } PET;
} monthly;