EPSG:12215

COMPD_CS["ETRS89-NLD [AGRS2010] + LAT-NLD depth",
    GEOGCS["ETRS89-NLD [AGRS2010]",
        DATUM["AGRS2010_ETRF2000",
            SPHEROID["GRS 1980",6378137,298.257222101,
                AUTHORITY["EPSG","7019"]],
            AUTHORITY["EPSG","1427"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","11037"]],
    VERT_CS["LAT-NLD depth",
        VERT_DATUM["Lowest Astronomical Tide Netherlands",2005,
            AUTHORITY["EPSG","1290"]],
        UNIT["metre",1,
            AUTHORITY["EPSG","9001"]],
        AXIS["Depth",DOWN],
        AUTHORITY["EPSG","9287"]],
    AUTHORITY["EPSG","12215"]]

COMPOUNDCRS["ETRS89-NLD [AGRS2010] + LAT-NLD depth",
    GEOGCRS["ETRS89-NLD [AGRS2010]",
        DATUM["AGRS2010 (ETRF2000)",
            ELLIPSOID["GRS 1980",6378137,298.257222101,
                LENGTHUNIT["metre",1]],
            ANCHOREPOCH[2010.5]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        CS[ellipsoidal,2],
            AXIS["geodetic latitude (Lat)",north,
                ORDER[1],
                ANGLEUNIT["degree",0.0174532925199433]],
            AXIS["geodetic longitude (Lon)",east,
                ORDER[2],
                ANGLEUNIT["degree",0.0174532925199433]]],
    VERTCRS["LAT-NLD depth",
        VDATUM["Lowest Astronomical Tide Netherlands"],
        CS[vertical,1],
            AXIS["depth (D)",down,
                LENGTHUNIT["metre",1]]],
    USAGE[
        SCOPE["Hydrography and nautical charting."],
        AREA["4859 - Netherlands - offshore and nearshore - east of 2.54° and south of 55.7625°"],
        BBOX[51.33,2.54,55.76,7.21]],
    ID["EPSG",12215]]

GEOGCS["GCS_ETRS89-NLD_AGRS2010",
    DATUM["D_AGRS2010_ETRF2000",
        SPHEROID["GRS_1980",6378137.0,298.257222101]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]],
VERTCS["LAT_NL_depth",
    VDATUM["Lowest_Astronomical_Tide_Netherlands"],
    PARAMETER["Vertical_Shift",0.0],
    PARAMETER["Direction",-1.0],
    UNIT["Meter",1.0]]

proj4.defs("EPSG:12215","+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "CompoundCRS",
    "name": "ETRS89-NLD [AGRS2010] + LAT-NLD depth",
    "components": [
        {
            "type": "GeographicCRS",
            "name": "ETRS89-NLD [AGRS2010]",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "AGRS2010 (ETRF2000)",
                "anchor_epoch": 2010.5,
                "ellipsoid": {
                    "name": "GRS 1980",
                    "semi_major_axis": 6378137,
                    "inverse_flattening": 298.257222101
                }
            },
            "coordinate_system": {
                "subtype": "ellipsoidal",
                "axis": [
                    {
                        "name": "Geodetic latitude",
                        "abbreviation": "Lat",
                        "direction": "north",
                        "unit": "degree"
                    },
                    {
                        "name": "Geodetic longitude",
                        "abbreviation": "Lon",
                        "direction": "east",
                        "unit": "degree"
                    }
                ]
            },
            "remarks": "Horizontal component of national realization of ETRS89 in the Netherlands, aligned to ETRF2000."
        },
        {
            "type": "VerticalCRS",
            "name": "LAT-NLD depth",
            "datum": {
                "type": "VerticalReferenceFrame",
                "name": "Lowest Astronomical Tide Netherlands"
            },
            "coordinate_system": {
                "subtype": "vertical",
                "axis": [
                    {
                        "name": "Depth",
                        "abbreviation": "D",
                        "direction": "down",
                        "unit": "metre"
                    }
                ]
            }
        }
    ],
    "scope": "Hydrography and nautical charting.",
    "area": "4859 - Netherlands - offshore and nearshore - east of 2.54° and south of 55.7625°",
    "bbox": {
        "south_latitude": 51.33,
        "west_longitude": 2.54,
        "north_latitude": 55.76,
        "east_longitude": 7.21
    },
    "id": {
        "authority": "EPSG",
        "code": 12215
    }
}

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs">
	</Layer>
</Map>

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 12215, 'EPSG', 12215, '+proj=longlat +ellps=GRS80 +vunits=m +no_defs +type=crs', 'COMPD_CS["ETRS89-NLD [AGRS2010] + LAT-NLD depth",GEOGCS["ETRS89-NLD [AGRS2010]",DATUM["AGRS2010_ETRF2000",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","1427"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","11037"]],VERT_CS["LAT-NLD depth",VERT_DATUM["Lowest Astronomical Tide Netherlands",2005,AUTHORITY["EPSG","1290"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","9287"]],AUTHORITY["EPSG","12215"]]');