EPSG:8350 — GR96 + GVR2016 height

COMPOUNDCRS[
    "GR96 + GVR2016 height",
    GEOGCRS[
        "GR96",
        ENSEMBLE[
            "Greenland Reference 1996 ensemble",
            MEMBER["Greenland Reference 1996 (1996)",ID["EPSG",1420]],
            MEMBER["Greenland Reference 1996 (2021)",ID["EPSG",1419]],
            ELLIPSOID[
                "GRS 1980",
                6378137,
                298.257222101,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",7019]
            ],
            ENSEMBLEACCURACY[0.25],
            ID["EPSG",1421]
        ],
        CS[ellipsoidal,2,ID["EPSG",6422]],
        AXIS["Geodetic latitude (Lat)",north],
        AXIS["Geodetic longitude (Lon)",east],
        ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
        ID["EPSG",4747]
    ],
    VERTCRS[
        "GVR2016 height",
        VDATUM["Greenland Vertical Reference 2016",ID["EPSG",1200]],
        CS[vertical,1,ID["EPSG",6499]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        GEOIDMODEL["GR96 to GVR2016 height (1)",ID["EPSG",8269]],
        ID["EPSG",8267]
    ],
    ID["EPSG",8350]
]

+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs

proj4.defs("EPSG:8350", "+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 8350,
  "name": "GR96 + GVR2016 height",
  "kind": "compound",
  "area": "Greenland - 58°N to 85°N",
  "unit": null,
  "bbox": [
    58,
    -75,
    85.01,
    -6.99
  ],
  "proj4": "+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (8350, 'EPSG', 8350, '+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs', 'COMPD_CS["GR96 + GVR2016 height",GEOGCS["GR96",DATUM["Greenland_1996",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6747"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4747"]],VERT_CS["GVR2016 height",VERT_DATUM["Greenland Vertical Reference 2016",2005,AUTHORITY["EPSG","1200"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8267"]],AUTHORITY["EPSG","8350"]]');

PROJECTION
  "+proj=longlat"
  "+ellps=GRS80"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

8350=COMPD_CS["GR96 + GVR2016 height",GEOGCS["GR96",DATUM["Greenland_1996",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6747"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4747"]],VERT_CS["GVR2016 height",VERT_DATUM["Greenland Vertical Reference 2016",2005,AUTHORITY["EPSG","1200"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","8267"]],AUTHORITY["EPSG","8350"]]