{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"BoundCRS","source_crs":{"type":"GeographicCRS","name":"Lisbon","datum":{"type":"GeodeticReferenceFrame","name":"Lisbon 1937","ellipsoid":{"name":"International 1924","semi_major_axis":6378388,"inverse_flattening":297}},"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":4207},"remarks":"Replaces Lisbon 1890 system which used Bessel 1841 ellipsoid (code 4666). Replaced by Datum 73 (code 4274)."},"target_crs":{"type":"GeographicCRS","name":"ETRS89-PRT [1995]","datum":{"type":"GeodeticReferenceFrame","name":"ETRS89-PRT [1995]","anchor_epoch":1995.4,"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":11108},"remarks":"Horizontal component of national realization of ETRS89 in continental Portugal."},"transformation":{"name":"Lisbon to ETRS89-PRT [1995] (4)","method":{"name":"NTv2","id":{"authority":"EPSG","code":9615}},"parameters":[{"name":"Latitude and longitude difference file","value":"DLx_ETRS89_geo.gsb","id":{"authority":"EPSG","code":8656}}],"id":{"authority":"EPSG","code":11780}}}