> BTW, I do not know that do you mean with epsg:27000 (there is no such a crs). sorry; iam working in the UK atm so got a bit confused. Meant to say *epsg:2100* (https://epsg.io/2100)
Have not been involved in 3D measurements for a very long time so my vertical knowledge is a bit rusty, but the name rings some bells. I'll try to ask around, but my feeling is as above: they are trying to keep it dynamic, and for each big project they declare technical specifications according to their needs but the final deliverables should always be transformed epsg/2100 (EGSA'87 or GGRS87 or Greek Grid); which we can say currently and for the foreseeable future is the de facto coordinate system of greece. n On Tue, Apr 9, 2024 at 10:46 AM Javier Jimenez Shaw <[email protected]> wrote: > Hi Nikos > > Thanks for your answer. > Yes, more digging would be really appreciated. Every country and agency > works different... and also they change along time. > > In Greece there is a vertical CRS in EPSG, "Piraeus-heigh" > https://epsg.org/crs_5716/Piraeus-height.html > > BTW, I do not know that do you mean with epsg:27000 (there is no such a > crs). > > Cheers > Javier. > > On Mon, 8 Apr 2024, 17:54 Nikolaos Ves, <[email protected]> wrote: > >> Hi Javier, >> >> This is an interesting one; I have not found a law that declares >> the official Greek coordinate system as the one described at epsg:27000. >> Interestingly enough at this moment, greece is trying to complete it's >> cadastre, and as a basis to it, everything is using the GRS80 ellipsoid >> as well. >> My take is that if this one was developed by the Hellenic Military >> Geographical Service, we could very well start seeing it being used for >> applications in the mid/far future, but for now it's not used in any >> official civil projects that I am aware of. >> >> Happy to dig a bit more to find a more authoritative answer somewhere if >> that is not sufficient, >> Let me know, >> Nikos >> >> On Mon, Apr 8, 2024 at 4:14 PM Javier Jimenez Shaw via PROJ < >> [email protected]> wrote: >> >>> Hi >>> >>> I found recently that there is a new geoid model in Greece "HELLAS GEOID >>> 2023" (HG2023) >>> >>> https://www.researchgate.net/publication/372604538_Geoid_model_determination_for_the_Hellenic_area_Hellas_Geoid_2023 >>> >>> In case it is the official one in Greece, it would be nice to include it >>> in PROJ (and EPSG). >>> Has anybody here contacts in Greece? I already wrote a couple of emails >>> to the authors, but probably I ended up in the spam folder. No useful info >>> in the webpage (or I couldn't find it). >>> >>> Thank you. >>> >>> Regards, >>> Javier. >>> .___ ._ ..._ .. . ._. .___ .. __ . _. . __.. ... .... ._ .__ >>> _______________________________________________ >>> PROJ mailing list >>> [email protected] >>> https://lists.osgeo.org/mailman/listinfo/proj >>> >>
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