[Proj] proj4 specifications for a rotated latlon grid on a sphere?

[Hermann Peifer]

On 2012-08-13 12:19, Martin Ivanov wrote:
> Dear PROJ4 users,
>
> I have a rotated latitude-longitude grid with coordinates of the north
> pole POLE_LAT=39.25 and POLE_LON=-162.
> The data are on a sphere with radius 6371 km. Is it possible to define
> proj4 specifications for this grid...

You could try:
+proj=ob_tran +o_proj=latlon +o_lon_p=-162 +o_lat_p=39.25 +lon_0=180

Hermann