EPSG:9662

COORDINATEOPERATION["Baltic 1986 height to EVRF2007-PL height (1)",
    VERSION["GUGiK-Pol"],
    SOURCECRS[
        VERTCRS["Baltic 1986 height",
            VDATUM["Baltic 1986"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",9650]]],
    TARGETCRS[
        VERTCRS["EVRF2007-PL height",
            VDATUM["European Vertical Reference Frame 2007 Poland"],
            CS[vertical,1],
                AXIS["gravity-related height (H)",up,
                    LENGTHUNIT["metre",1]],
            ID["EPSG",9651]]],
    METHOD["Vertical Offset by Grid Interpolation (PL txt)",
        ID["EPSG",1101]],
    PARAMETERFILE["Vertical offset file","gugik-evrf2007.txt"],
    INTERPOLATIONCRS[
        GEOGCRS["ETRF2000-PL",
            DATUM["ETRF2000 Poland",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    LENGTHUNIT["metre",1]]],
            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]]]],
    OPERATIONACCURACY[0.04],
    USAGE[
        SCOPE["Change of height to a different vertical reference surface."],
        AREA["Poland - onshore."],
        BBOX[49,14.14,54.89,24.15]],
    ID["EPSG",9662],
    REMARK["Gives same result as differencing quasi-geoid models geoid2011-KRON86 and geoid2011-EVRF2007 (transformations 9658 and 9660)."]]

proj4.defs("EPSG:9662","+proj=vgridshift +grids=gugik-evrf2007.txt +multiplier=1");

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "Transformation",
    "name": "Baltic 1986 height to EVRF2007-PL height (1)",
    "source_crs": {
        "type": "VerticalCRS",
        "name": "Baltic 1986 height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "Baltic 1986"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 9650
        }
    },
    "target_crs": {
        "type": "VerticalCRS",
        "name": "EVRF2007-PL height",
        "datum": {
            "type": "VerticalReferenceFrame",
            "name": "European Vertical Reference Frame 2007 Poland"
        },
        "coordinate_system": {
            "subtype": "vertical",
            "axis": [
                {
                    "name": "Gravity-related height",
                    "abbreviation": "H",
                    "direction": "up",
                    "unit": "metre"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 9651
        }
    },
    "interpolation_crs": {
        "type": "GeographicCRS",
        "name": "ETRF2000-PL",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "ETRF2000 Poland",
            "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"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 9702
        }
    },
    "method": {
        "name": "Vertical Offset by Grid Interpolation (PL txt)",
        "id": {
            "authority": "EPSG",
            "code": 1101
        }
    },
    "parameters": [
        {
            "name": "Vertical offset file",
            "value": "gugik-evrf2007.txt",
            "id": {
                "authority": "EPSG",
                "code": 8732
            }
        }
    ],
    "accuracy": "0.04",
    "scope": "Change of height to a different vertical reference surface.",
    "area": "Poland - onshore.",
    "bbox": {
        "south_latitude": 49,
        "west_longitude": 14.14,
        "north_latitude": 54.89,
        "east_longitude": 24.15
    },
    "id": {
        "authority": "EPSG",
        "code": 9662
    },
    "remarks": "Gives same result as differencing quasi-geoid models geoid2011-KRON86 and geoid2011-EVRF2007 (transformations 9658 and 9660)."
}

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=vgridshift +grids=gugik-evrf2007.txt +multiplier=1">
	<Layer srs="+proj=vgridshift +grids=gugik-evrf2007.txt +multiplier=1">
	</Layer>
</Map>

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 9662, 'EPSG', 9662, '+proj=vgridshift +grids=gugik-evrf2007.txt +multiplier=1', 'None');