The Open Geospatial Consortium (OGC) has announced the release of the OGC Features and Geometries JSON (JSON-FG) Standard.

The Standard extends the GeoJSON format to support extra capabilities that are not within the scope of GeoJSON but are nonetheless important for a variety of geospatial feature data use cases.

According to the OGC, GeoJSON is a widely adopted exchange format for feature data and is broadly supported across geospatial applications.

“However, GeoJSON has intentional restrictions that prevent or limit its use in certain geospatial application contexts,” the GOC says.

“For example, GeoJSON is restricted to the use of WGS 84 coordinates in longitude-latitude axis order, supports only the original Simple Features geometry types, and does not provide a mechanism for classifying features according to type.”

What JSON-FG brings to GeoJSON

The Standard defines a set of extensions that bring standardised approaches for addressing the requirements listed above, and others.

The OGC says the goal of JSON-FG is to “support capabilities that may require some geospatial expertise but are broadly useful across many applications. Edge cases are considered out of scope for the Standard”.

OGC seeks public comment

Meanwhile, the OGC is seeking public comment on the candidate OGC EmissionML Standard.

The EmissionML Standard is a proposed framework for standardised, interoperable representation of emission event data across environmental monitoring and reporting systems.

EmissionML is a conceptual data model for representing emission events, providing a domain-specific ontology for describing the release of substances into the atmosphere.

This includes the source from which an emission originates, the mechanism by which it occurs, the quantity of substance released, and the temporal bounds of the event.

Comment is sought by 18 June via the OGC GitHub repository.