FNL22 Grid + ODN height - EPSG:9978
Detailed Extent
WKT
HVCOORDSYS["FNL22_Grid_and_ODN_height",
PROJCS["FNL22_Grid",
GEOGCS["FNL22-IRF",
DATUM["FNL22_Intermediate_Reference_Frame",
SPHEROID["GRS_1980", 6378137.0, 298.257222101]],
PRIMEM["Greenwich", 0.0],
UNIT["Degree", 0.0174532925199433]],
PROJECTION["Transverse_Mercator"],
PARAMETER["False_Easting", 139618.9493],
PARAMETER["False_Northing", 183110.794],
PARAMETER["Central_Meridian", -3.8],
PARAMETER["Scale_Factor", 1.0],
PARAMETER["Latitude_Of_Origin", 58.0],
UNIT["Meter", 1.0]],
VERTCS["Newlyn",
VDATUM["Ordnance_Datum_Newlyn"],
PARAMETER["Vertical_Shift", 0.0],
PARAMETER["Direction", 1.0],
UNIT["Meter", 1.0]]]
WKT2
COMPOUNDCRS["FNL22_Grid_and_ODN_height",
PROJCRS["FNL22_Grid",
BASEGEOGCRS["FNL22-IRF",
DATUM["FNL22_Intermediate_Reference_Frame",
ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]],
PRIMEM["Greenwich", 0.0],
CS[ellipsoidal, 2],
AXIS["Latitude (lat)", north,
ORDER[1]],
AXIS["Longitude (lon)", east,
ORDER[2]],
ANGLEUNIT["Degree", 0.0174532925199433]],
CONVERSION["Transverse_Mercator",
METHOD["Transverse_Mercator"],
PARAMETER["False_Easting", 139618.9493],
PARAMETER["False_Northing", 183110.794],
PARAMETER["Central_Meridian", -3.8],
PARAMETER["Scale_Factor", 1.0],
PARAMETER["Latitude_Of_Origin", 58.0]],
CS[Cartesian, 2],
AXIS["Easting (X)", east,
ORDER[1]],
AXIS["Northing (Y)", north,
ORDER[2]],
LENGTHUNIT["Meter", 1.0]],
VERTCRS["Newlyn",
VDATUM["Ordnance_Datum_Newlyn"],
CS[vertical, 1],
AXIS["Gravity-related height (H)", up,
LENGTHUNIT["Meter", 1.0]]],
ID["EPSG", "9978"]]
Data from @esri/proj-codes
{
"wkid": 9978,
"latestWkid": 9978,
"pcsWkid": 9977,
"gcsWkid": 9974,
"vcsWkid": 5701,
"macro": "PE_HVC_FNL22_GRID_ODN_HEIGHT",
"name": "FNL22_Grid_and_ODN_height",
"wkt": "HVCOORDSYS[\"FNL22_Grid_and_ODN_height\",PROJCS[\"FNL22_Grid\",GEOGCS[\"FNL22-IRF\",DATUM[\"FNL22_Intermediate_Reference_Frame\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",139618.9493],PARAMETER[\"False_Northing\",183110.794],PARAMETER[\"Central_Meridian\",-3.8],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",58.0],UNIT[\"Meter\",1.0]],VERTCS[\"Newlyn\",VDATUM[\"Ordnance_Datum_Newlyn\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]]",
"wkt2": "COMPOUNDCRS[\"FNL22_Grid_and_ODN_height\",PROJCRS[\"FNL22_Grid\",BASEGEOGCRS[\"FNL22-IRF\",DATUM[\"FNL22_Intermediate_Reference_Frame\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Transverse_Mercator\",METHOD[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",139618.9493],PARAMETER[\"False_Northing\",183110.794],PARAMETER[\"Central_Meridian\",-3.8],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",58.0]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0]],VERTCRS[\"Newlyn\",VDATUM[\"Ordnance_Datum_Newlyn\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]]],ID[\"EPSG\",\"9978\"]]",
"description": "FNL22 Grid + ODN height",
"authority": "EPSG",
"version": "10.059(13.2.0)",
"deprecated": "no",
"areaname": "UK - Inverness to Thurso",
"extent": {
"slat": 57.4,
"nlat": 58.64,
"llon": -4.6,
"rlon": -3
}
}