EPSG:9922 — ETRS89 / ITM + BI height

COMPOUNDCRS[
    "ETRS89 / ITM + BI height",
    PROJCRS[
        "ETRS89-IRE [ETRF2000] / Irish Transverse Mercator",
        BASEGEOGCRS[
            "ETRS89-IRE [ETRF2000]",
            DATUM[
                "ETRS89-IRE [ETRF2000]",
                ELLIPSOID[
                    "GRS 1980",
                    6378137,
                    298.257222101,
                    LENGTHUNIT["metre",1,ID["EPSG",9001]],
                    ID["EPSG",7019]
                ],
                ANCHOREPOCH[2009.756],
                ID["EPSG",6173]
            ],
            ID["EPSG",4173]
        ],
        CONVERSION[
            "Irish Transverse Mercator",
            METHOD["Transverse Mercator",ID["EPSG",9807]],
            PARAMETER[
                "Latitude of natural origin",
                53.5000000000003,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8801]
            ],
            PARAMETER[
                "Longitude of natural origin",
                -8,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8802]
            ],
            PARAMETER[
                "Scale factor at natural origin",
                0.99982,
                SCALEUNIT["unity",1,ID["EPSG",9201]],
                ID["EPSG",8805]
            ],
            PARAMETER[
                "False easting",
                600000,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",8806]
            ],
            PARAMETER[
                "False northing",
                750000,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",8807]
            ],
            ID["EPSG",19962]
        ],
        CS[Cartesian,2,ID["EPSG",4400]],
        AXIS["Easting (E)",east],
        AXIS["Northing (N)",north],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        ID["EPSG",2157]
    ],
    VERTCRS[
        "BI height",
        ENSEMBLE[
            "British Isles height ensemble",
            MEMBER["Malin Head",ID["EPSG",5130]],
            MEMBER["Belfast Lough",ID["EPSG",5131]],
            MEMBER["Ordnance Datum Newlyn",ID["EPSG",5101]],
            MEMBER["Ordnance Datum Newlyn (Offshore)",ID["EPSG",1164]],
            MEMBER["Ordnance Datum Newlyn (Orkney Isles)",ID["EPSG",5138]],
            MEMBER["Lerwick",ID["EPSG",5140]],
            MEMBER["Stornoway",ID["EPSG",5144]],
            MEMBER["Douglas",ID["EPSG",5148]],
            MEMBER["St. Marys",ID["EPSG",5147]],
            ENSEMBLEACCURACY[0.4],
            ID["EPSG",1288]
        ],
        CS[vertical,1,ID["EPSG",6499]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        GEOIDMODEL["ETRS89 to BI height (1)",ID["EPSG",9914]],
        GEOIDMODEL["ETRS89 to BI height (2)",ID["EPSG",9916]],
        GEOIDMODEL["ETRS89 to BI height (3)",ID["EPSG",9918]],
        ID["EPSG",9451]
    ],
    ID["EPSG",9922]
]

+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=0.99982 +x_0=600000 +y_0=750000 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs

proj4.defs("EPSG:9922", "+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=0.99982 +x_0=600000 +y_0=750000 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 9922,
  "name": "ETRS89 / ITM + BI height",
  "kind": "compound",
  "area": "Europe - Ireland (Republic and Ulster) - onshore",
  "unit": null,
  "bbox": [
    51.39,
    -10.56,
    55.43,
    -5.34
  ],
  "proj4": "+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=0.99982 +x_0=600000 +y_0=750000 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (9922, 'EPSG', 9922, '+proj=tmerc +lat_0=53.5 +lon_0=-8 +k=0.99982 +x_0=600000 +y_0=750000 +ellps=GRS80 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["ETRS89 / ITM + BI height",PROJCS["IRENET95 / Irish Transverse Mercator",GEOGCS["IRENET95",DATUM["IRENET95",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6173"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4173"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",53.5],PARAMETER["central_meridian",-8],PARAMETER["scale_factor",0.99982],PARAMETER["false_easting",600000],PARAMETER["false_northing",750000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2157"]],VERT_CS["BI height",VERT_DATUM["British Isles height ensemble",2005,AUTHORITY["EPSG","1288"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9451"]],AUTHORITY["EPSG","9922"]]');

PROJECTION
  "+proj=tmerc"
  "+lat_0=53.5"
  "+lon_0=-8"
  "+k=0.99982"
  "+x_0=600000"
  "+y_0=750000"
  "+ellps=GRS80"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

9922=COMPD_CS["ETRS89 / ITM + BI height",PROJCS["IRENET95 / Irish Transverse Mercator",GEOGCS["IRENET95",DATUM["IRENET95",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6173"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4173"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",53.5],PARAMETER["central_meridian",-8],PARAMETER["scale_factor",0.99982],PARAMETER["false_easting",600000],PARAMETER["false_northing",750000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2157"]],VERT_CS["BI height",VERT_DATUM["British Isles height ensemble",2005,AUTHORITY["EPSG","1288"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","9451"]],AUTHORITY["EPSG","9922"]]