Well Known Text
 
WKT Version 2
COORDINATEOPERATION["CGVD28 height to CGVD2013a(1997) height (1)",VERSION["NR-Can HT2 1997"],SOURCECRS[VERTCRS["CGVD28 height",VDATUM["Canadian Geodetic Vertical Datum of 1928",ID["EPSG",5114]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",5713]]],TARGETCRS[VERTCRS["CGVD2013a(1997) height",VDATUM["Canadian Geodetic Vertical Datum of 2013 (CGG2013a) epoch 1997",ANCHOREPOCH[1997],ID["EPSG",1326]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",20035]]],METHOD["Vertical Offset by Grid Interpolation (NRCan byn)",ID["EPSG",1112]],PARAMETERFILE["Vertical offset file","HT2_1997_CGG2013a.byn",ID["EPSG",8732]],PARAMETER["EPSG code for Interpolation CRS",8240,ID["EPSG",1048]],OPERATIONACCURACY[0.05],ID["EPSG",10113]]


