{ "type":"CompoundCRS", "components":[ { "type":"ProjectedCRS", "name":"NAD83(CSRS)v7 / UTM zone 17", "base_crs":{ "name":"NAD83(CSRS)v7", "datum":{"type":"GeodeticReferenceFrame","name":"North American Datum of 1983 (CSRS) version 7","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"}]} }, "conversion":{ "name":"UTM zone 17N", "method":{"name":"Transverse Mercator","id":{"authority":"EPSG","code":9807}}, "parameters":[ {"name":"Latitude of natural origin","value":0,"unit":"degree","id":{"authority":"EPSG","code":8801}}, {"name":"Longitude of natural origin","value":-81,"unit":"degree","id":{"authority":"EPSG","code":8802}}, {"name":"Scale factor at natural origin","value":0.9996,"unit":"unity","id":{"authority":"EPSG","code":8805}}, {"name":"False easting","value":500000,"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":"Easting","abbreviation":"E(X)","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"N(Y)","direction":"north","unit":"metre"}]} }, { "type":"VerticalCRS", "name":"CGVD28 height", "datum":{"type":"VerticalReferenceFrame","name":"Canadian Geodetic Vertical Datum of 1928"}, "coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]}, "geoid_model":{"name":"HT2_2010","id":{"authority":"NRCAN","code":"HT2_2010"}}, "id":{"authority":"EPSG","code":5713} } ], "name":"NAD83(CSRS)v7 / UTM zone 17 + CGVD28 height", "scope":"Engineering survey, topographic mapping.", "area":"Canada between 84\u00b030W and 78\u00b030W, onshore and offshore south of 84\u00b030N - Nunavut, Ontario and Quebec.", "bbox":{"south_latitude":41.67,"west_longitude":-84,"north_latitude":84,"east_longitude":-78} }