Hi Ghislain,
according to
ftp://ftp.conservatoire-du-littoral.fr/Public/BIOTOPE_Etang_de_Vic/BDTOPO_dep34_2012/BDTOPO_2-1_SHP_LAMB93_D034_ED122/SUPPLEMENTS/IGNF.xml
it seems as if it is the same as urn:ogc:def:crs:EPSG::5755 (vertical CRS in French Guiana: NIVELLEMENT GENERAL DE GUYANE (NGG) 1977). Not sure why they also came up with that code 400016000.
Best regards,
Clemens
On 18.02.2014, at 16:58, Ghislain Atemezing <auguste.atemezing@eurecom.fr> wrote:
> Hi Clemens,
>
>> according to http://www.epsg-registry.org/ there is no entry with id 400016000 in the EPSG register. I.e., whoever used urn:ogc:def:crs:EPSG::400016000 has used a broken identifier.
>
> Thanks for this information. I will find who to blame at IGN France, specially in the geodetic department ;-)
>
> Best regards,
> Ghislain