{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"CompoundCRS","name":"JGD2024 / Japan Plane Rectangular CS XII + JGD2024 (vertical) height","components":[{"type":"ProjectedCRS","name":"JGD2024 / Japan Plane Rectangular CS XII","base_crs":{"type":"GeographicCRS","name":"JGD2024","datum":{"type":"GeodeticReferenceFrame","name":"Japanese Geodetic Datum 2024","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"}]},"id":{"authority":"EPSG","code":6668},"remarks":"Replaces JGD2000 (CRS code 4612) with effect from 21st October 2011. On adoption of JGD2024 (vertical) with effect from 1st April 2025, the name of this geodetic CRS was changed from JGD2011 to JGD2024; there is no change of definition or of coordinate values."},"conversion":{"name":"Japan Plane Rectangular CS zone XII","method":{"name":"Transverse Mercator","id":{"authority":"EPSG","code":9807}},"parameters":[{"name":"Latitude of natural origin","value":44,"unit":"degree","id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":142.25,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":0.9999,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":0,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":0,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Northing","abbreviation":"X","direction":"north","unit":"metre"},{"name":"Easting","abbreviation":"Y","direction":"east","unit":"metre"}]}},{"type":"VerticalCRS","name":"JGD2024 (vertical) height","datum":{"type":"VerticalReferenceFrame","name":"Japanese Geodetic Datum 2024 (vertical)","anchor_epoch":2024.415},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]}}],"scope":"Cadastre, engineering survey, topographic mapping (large and medium scale).","area":"Japan - onshore - Hokkaido between approximately 141°E and 143°E - Sapporo city; Asahikawa city; Wakkanai city; Rumoi city; Bibai city; Yubari city; Iwamizawa city; Tomakomai city; Muroran city; Shibetsu city; Nayoro city; Ashibetsu city; Akabira city; Mikasa city; Takikawa city; Sunagawa city; Ebetsu city; Chitose city; Utashinai city; Fukagawa city; Monbetsu city; Furano city; Noboribetsu city; Eniwa city; Ishikari-shicho; Monbetsu-gun of Abashiri-shicho; Kamikawa-shicho; Soya-shicho; Hidaka-shicho; Iburi-shicho (except Usu-gun and Abuta-gun); Sorachi-shicho; Rumoi-shicho.","bbox":{"south_latitude":42.15,"west_longitude":140.89,"north_latitude":45.54,"east_longitude":143.61},"id":{"authority":"EPSG","code":11330}}