{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"CompoundCRS","name":"Tokyo + JSLD69 height","components":[{"type":"GeographicCRS","name":"Tokyo","datum":{"type":"GeodeticReferenceFrame","name":"Tokyo","ellipsoid":{"name":"Bessel 1841","semi_major_axis":6377397.155,"inverse_flattening":299.1528128}},"coordinate_system":{"subtype":"ellipsoidal","axis":[{"name":"Geodetic latitude","abbreviation":"Lat","direction":"north","unit":"degree"},{"name":"Geodetic longitude","abbreviation":"Lon","direction":"east","unit":"degree"}]},"remarks":"In Japan, replaces Tokyo 1892 (CRS code 5132) and replaced by JGD2000 (code 4612) from April 2002. In Korea used only for geodetic applications before being replaced by Korean 1985 (code 4162)."},{"type":"VerticalCRS","name":"JSLD69 height","datum":{"type":"VerticalReferenceFrame","name":"Japanese Standard Levelling Datum 1969"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]}}],"scope":"Engineering survey, topographic mapping.","area":"Japan - onshore mainland - Honshu, Shikoku, Kyushu.","bbox":{"south_latitude":30.94,"west_longitude":129.3,"north_latitude":41.58,"east_longitude":142.14},"id":{"authority":"EPSG","code":7414}}