Well Known Text
WKT Version 2
COMPOUNDCRS["ETRS89 + BI height",GEOGCRS["ETRS89",ENSEMBLE["European Terrestrial Reference System 1989 ensemble", MEMBER["European Terrestrial Reference Frame 1989", ID["EPSG",1178]], MEMBER["European Terrestrial Reference Frame 1990", ID["EPSG",1179]], MEMBER["European Terrestrial Reference Frame 1991", ID["EPSG",1180]], MEMBER["European Terrestrial Reference Frame 1992", ID["EPSG",1181]], MEMBER["European Terrestrial Reference Frame 1993", ID["EPSG",1182]], MEMBER["European Terrestrial Reference Frame 1994", ID["EPSG",1183]], MEMBER["European Terrestrial Reference Frame 1996", ID["EPSG",1184]], MEMBER["European Terrestrial Reference Frame 1997", ID["EPSG",1185]], MEMBER["European Terrestrial Reference Frame 2000", ID["EPSG",1186]], MEMBER["European Terrestrial Reference Frame 2005", ID["EPSG",1204]], MEMBER["European Terrestrial Reference Frame 2014", ID["EPSG",1206]], MEMBER["European Terrestrial Reference Frame 2020", ID["EPSG",1382]], ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]], ENSEMBLEACCURACY[0.1],ID["EPSG",6258]],CS[ellipsoidal,2,ID["EPSG",6422]],AXIS["Geodetic latitude (Lat)",north],AXIS["Geodetic longitude (Lon)",east],ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",4258]],VERTCRS["BI height",ENSEMBLE["British Isles height ensemble", MEMBER["Malin Head", ID["EPSG",5130]], MEMBER["Belfast Lough", ID["EPSG",5131]], MEMBER["Ordnance Datum Newlyn", ID["EPSG",5101]], MEMBER["Ordnance Datum Newlyn (Offshore)", ID["EPSG",1164]], MEMBER["Ordnance Datum Newlyn (Orkney Isles)", ID["EPSG",5138]], MEMBER["Lerwick", ID["EPSG",5140]], MEMBER["Stornoway", ID["EPSG",5144]], MEMBER["Douglas", ID["EPSG",5148]], MEMBER["St. Marys", ID["EPSG",5147]], ENSEMBLEACCURACY[0.4],ID["EPSG",1288]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["ETRS89 to BI height (1)",ID["EPSG",9914]],GEOIDMODEL["ETRS89 to BI height (2)",ID["EPSG",9916]],GEOIDMODEL["ETRS89 to BI height (3)",ID["EPSG",9918]],ID["EPSG",9451]],ID["EPSG",9452]]