{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"GeographicCRS","name":"GWWAB22-IRF","datum":{"type":"GeodeticReferenceFrame","name":"GWWAB22 Intermediate Reference Frame","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"scope":"Engineering survey and topographic mapping for railway applications.","area":"United Kingdom (UK) - on or related to the rail routes around Cardiff and the valleys.","bbox":{"south_latitude":51.35,"west_longitude":-3.6,"north_latitude":51.81,"east_longitude":-3.12},"id":{"authority":"EPSG","code":10214},"remarks":"Intermediate CRS created in 2022 to assist the emulation of the ETRS89 / GWWAB22 SnakeGrid projected CRS through transformation ETRS89 to GWWAB22-IRF (1) (code 10215) used in conjunction with the GW22-LCC map projection (code 10211)."}