Well Known Text
 
WKT Version 2
COORDINATEOPERATION["ETRS89-GBR [OSNet v2009] to Lerwick height (2)",VERSION["OS-UK Shet 2015"],SOURCECRS[GEOGCRS["ETRS89-GBR [OSNet v2009]",DATUM["OSNet v2009",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ANCHOREPOCH[2009.756],ID["EPSG",1425]],CS[ellipsoidal,3,ID["EPSG",6423]],AXIS["Geodetic latitude (Lat)",north,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]],AXIS["Geodetic longitude (Lon)",east,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]]],AXIS["Ellipsoidal height (h)",up,LENGTHUNIT["metre",1,ID["EPSG",9001]]],ID["EPSG",11008]]],TARGETCRS[VERTCRS["Lerwick height",VDATUM["Lerwick",ID["EPSG",5140]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["ETRS89-GBR [OSNet v2009] to Lerwick height (2)",ID["EPSG",7714]],GEOIDMODEL["ETRS89 to Lerwick height (1)",ID["EPSG",10027]],ID["EPSG",5742]]],METHOD["Geographic3D to GravityRelatedHeight (OSGM-GB)",ID["EPSG",9663]],PARAMETERFILE["Geoid (height correction) model file","OSTN15_OSGM15_GB.txt",ID["EPSG",8666]],OPERATIONACCURACY[0.018],ID["EPSG",7714]]


