Well Known Text
 
WKT Version 2
COORDINATEOPERATION["Vienna height to GHA height (1)",VERSION["BEV-Aut Wien"],SOURCECRS[VERTCRS["Vienna height",VDATUM["Wiener Null",ID["EPSG",1267]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["Vienna height to GHA height (1)",ID["EPSG",9371]],ID["EPSG",8881]]],TARGETCRS[VERTCRS["GHA height",VDATUM["Gebrauchshohen ADRIA",ID["EPSG",5176]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["ETRS89 to GHA height (1)",ID["EPSG",9278]],ID["EPSG",5778]]],METHOD["Vertical Offset",ID["EPSG",9616]],PARAMETER["Vertical Offset",156.68,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8603]],OPERATIONACCURACY[0],ID["EPSG",9371]]


