Dataset {
    Float32 L[L = 3];
    Float32 S[S = 360];
    Grid {
     ARRAY:
        Float32 hindcast_length[L = 3][S = 360];
     MAPS:
        Float32 L[L = 3];
        Float32 S[S = 360];
    } hindcast_length;
} hindcast_length;