[PROJ] Is your the geoid model from your country in PROJ?

[Javier Jimenez Shaw]

Hi all

Maybe you remember that I asked recently about the (missing) Greek geoid
model.

If you are asking yourself if your country is in similar situation, go to
https://cdn.proj.org/ , select only "Geoid models" (there are other grid
files there) and check.
In case it is not there, it could be:
- There is no such a geoid model in your country (really?)
- There is, but you have to pay for it (really???)
- There is, but it is not fully open data, with a restrictive license (that
is sad... maybe they want to change that)
- It is there, apparently accesible, but the license is not clear (that
should be fixable if the agency really wants to make it open data)
- It is there, is it open, but there is some missing information in EPSG
(for instance, but not only, the vertical CRS) (that is easy and free to
fix if the agency wants to)
- We missed it! Let us know.
- None of the above.

Maybe you want to talk with your local agency to fix this ;)

Best regards,
Javier

PS. In my opinion a geoid model is not a national security problem
(otherwise the US would not make them public ;) There are world models
already. It is a way to make data (measurements done with GNSS) compatible
with requirements (orthometric heights in the local system). Mainly local
companies and surveyors will have an easy workflow if the needed geoid
model is really easy to use, better if it is automatic in their tools.

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