Well Known Text
 
WKT Version 2
COORDINATEOPERATION["EGM2008 height to POM08 height (1)",VERSION["QC-Png Gulf-Cen"],SOURCECRS[VERTCRS["EGM2008 height",VDATUM["EGM2008 geoid",ID["EPSG",1027]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",3855]]],TARGETCRS[VERTCRS["POM08 height",VDATUM["Port Moresby 2008",ID["EPSG",1172]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["EGM2008 height to POM08 height (1)",ID["EPSG",7874]],ID["EPSG",7841]]],METHOD["Vertical Offset",ID["EPSG",9616]],PARAMETER["Vertical Offset",-0.93,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8603]],OPERATIONACCURACY[0],ID["EPSG",7874]]


