[OSGeo-Standards] PROJJSON OGC Community Standard Submission?
Howard Butler
howard at hobu.co
Tue Nov 11 19:43:13 PST 2025
No takers, interest, or guidance on this topic?
> On Oct 31, 2025, at 12:37 PM, Howard Butler <howard at hobu.co> wrote:
>
> Hello,
>
> The PROJ project plans to submit PROJJSON as an OGC Community Standard. The application document was initiated three years ago [1] by myself and Even Rouault, but we were waiting to see if the OGC CRS SWG would build upon PROJJSON to create a JSON based encoding of CRS.
>
> To date, no draft has been published, the survey at the previous OGC meeting was ambiguous about how the organization would move forward, and if the CRS SWG chooses to revisit ISO 19111 conceptual model enhancements and their reflection through a JSON CRS definition, that work will in all likelihood be backwards and forwards incompatible with PROJJSON. Given the current situation, we would like to move forward with PROJJSON as a Community Standard.
>
> In the interim since we initiated the submission, PROJJSON adoption has continued to grow. STAC was recently recognized as a OGC Community Standard at the Boulder Members Meeting [2], and its Projection Extension references PROJJSON. GeoParquet 1.1 [3] uses PROJJSON as its CRS definition, Parquet references PROJJSON as a possible definition in its spatial types[4], and Zarr is looking at it for its geo-proj Zarr extension [5].
>
> We believe it makes sense to resume the application process for PROJJSON to be also recognized as a community standard. Even has prepared an update of the application at https://github.com/OSGeo/projjson-submission/pull/3.
>
> Does OSGeo want to be mentioned as one of the submitting organizations? If so, what's the process for a project to submit one of its works to OSGeo as a Community Standard? A successful motion raised on this mailing list?
> Kind regards,
>
> Howard and Even
>
>
> [1] https://github.com/OSGeo/projjson-submission
> [2] https://www.ogc.org/announcement/ogc-announces-publication-of-the-spatiotemporal-asset-catalog-community-standards/
> [3] https://geoparquet.org/releases/v1.1.0/
> [4] https://github.com/apache/parquet-format/blob/master/Geospatial.md
> [5] https://github.com/zarr-experimental/geo-proj
>
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