Dataset {
    Float32 T[T = 1668];
    Float32 Y[Y = 90];
    Float32 X[X = 180];
    Grid {
     ARRAY:
        Float32 u[T = 1668][Y = 90][X = 180];
     MAPS:
        Float32 T[T = 1668];
        Float32 Y[Y = 90];
        Float32 X[X = 180];
    } u;
} mean;