EPSG:8804 — NAD83 / Alaska zone 2 + NAVD88 height

Compound · USA - Alaska - 144°W to 141°W

Export Formats

OGC WKT

COMPD_CS[
    "NAD83 / Alaska zone 2 + NAVD88 height",
    PROJCS[
        "NAD83 / Alaska zone 2",
        GEOGCS[
            "NAD83",
            DATUM[
                "North_American_Datum_1983",
                SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],
                AUTHORITY["EPSG","6269"]
            ],
            PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],
            UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],
            AUTHORITY["EPSG","4269"]
        ],
        PROJECTION["Transverse_Mercator"],
        PARAMETER["latitude_of_origin",54],
        PARAMETER["central_meridian",-142],
        PARAMETER["scale_factor",0.9999],
        PARAMETER["false_easting",500000],
        PARAMETER["false_northing",0],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AXIS["Easting",EAST],
        AXIS["Northing",NORTH],
        AUTHORITY["EPSG","26932"]
    ],
    VERT_CS[
        "NAVD88 height",
        VERT_DATUM[
            "North American Vertical Datum 1988",
            2005,
            AUTHORITY["EPSG","5103"]
        ],
        UNIT["metre",1,AUTHORITY["EPSG","9001"]],
        AXIS["Gravity-related height",UP],
        AUTHORITY["EPSG","5703"]
    ],
    AUTHORITY["EPSG","8804"]
]

WKT2

COMPOUNDCRS[
    "NAD83 / Alaska zone 2 + NAVD88 height",
    PROJCRS[
        "NAD83 / Alaska zone 2",
        BASEGEOGCRS[
            "NAD83",
            DATUM[
                "North American Datum 1983",
                ELLIPSOID[
                    "GRS 1980",
                    6378137,
                    298.257222101,
                    LENGTHUNIT["metre",1,ID["EPSG",9001]],
                    ID["EPSG",7019]
                ],
                ID["EPSG",6269]
            ],
            ID["EPSG",4269]
        ],
        CONVERSION[
            "SPCS83 Alaska zone 2 (meter)",
            METHOD["Transverse Mercator",ID["EPSG",9807]],
            PARAMETER[
                "Latitude of natural origin",
                54,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8801]
            ],
            PARAMETER[
                "Longitude of natural origin",
                -142,
                ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
                ID["EPSG",8802]
            ],
            PARAMETER[
                "Scale factor at natural origin",
                0.9999,
                SCALEUNIT["unity",1,ID["EPSG",9201]],
                ID["EPSG",8805]
            ],
            PARAMETER[
                "False easting",
                500000,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",8806]
            ],
            PARAMETER[
                "False northing",
                0,
                LENGTHUNIT["metre",1,ID["EPSG",9001]],
                ID["EPSG",8807]
            ],
            ID["EPSG",15032]
        ],
        CS[Cartesian,2,ID["EPSG",4499]],
        AXIS["Easting (X)",east],
        AXIS["Northing (Y)",north],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        ID["EPSG",26932]
    ],
    VERTCRS[
        "NAVD88 height",
        VDATUM["North American Vertical Datum 1988",ID["EPSG",5103]],
        CS[vertical,1,ID["EPSG",6499]],
        AXIS["Gravity-related height (H)",up],
        LENGTHUNIT["metre",1,ID["EPSG",9001]],
        GEOIDMODEL["NAD83(2011) to NAVD88 height (1)",ID["EPSG",6326]],
        GEOIDMODEL["NAD83(2011) to NAVD88 height (2)",ID["EPSG",6327]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (1)",ID["EPSG",9160]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (2)",ID["EPSG",9161]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (3)",ID["EPSG",9162]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (4)",ID["EPSG",9163]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (5)",ID["EPSG",9164]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (6)",ID["EPSG",9165]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (7)",ID["EPSG",9166]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (8)",ID["EPSG",9167]],
        GEOIDMODEL["NAD83(FBN) to NAVD88 height (1)",ID["EPSG",9168]],
        GEOIDMODEL["NAD83(HARN) to NAVD88 height (9)",ID["EPSG",9169]],
        GEOIDMODEL["NAD83(NSRS2007) to NAVD88 height (1)",ID["EPSG",9173]],
        GEOIDMODEL["NAD83(NSRS2007) to NAVD88 height (2)",ID["EPSG",9174]],
        GEOIDMODEL["NAD83(2011) to NAVD88 height (3)",ID["EPSG",9229]],
        ID["EPSG",5703]
    ],
    ID["EPSG",8804]
]

PROJ.4

+proj=tmerc +lat_0=54 +lon_0=-142 +k=0.9999 +x_0=500000 +y_0=0 +datum=NAD83 +units=m +vunits=m +no_defs +type=crs

Proj4js

How to add a projection to Proj4js? →

proj4.defs("EPSG:8804", "+proj=tmerc +lat_0=54 +lon_0=-142 +k=0.9999 +x_0=500000 +y_0=0 +datum=NAD83 +units=m +vunits=m +no_defs +type=crs");

JSON

{
  "type": "CoordinateReferenceSystem",
  "code": 8804,
  "name": "NAD83 / Alaska zone 2 + NAVD88 height",
  "kind": "compound",
  "area": "USA - Alaska - 144°W to 141°W",
  "unit": null,
  "bbox": [
    59.72,
    -144.01,
    70.16,
    -140.98
  ],
  "proj4": "+proj=tmerc +lat_0=54 +lon_0=-142 +k=0.9999 +x_0=500000 +y_0=0 +datum=NAD83 +units=m +vunits=m +no_defs +type=crs"
}

PostGIS

How to add a projection to PostGIS? →

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (8804, 'EPSG', 8804, '+proj=tmerc +lat_0=54 +lon_0=-142 +k=0.9999 +x_0=500000 +y_0=0 +datum=NAD83 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["NAD83 / Alaska zone 2 + NAVD88 height",PROJCS["NAD83 / Alaska zone 2",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",54],PARAMETER["central_meridian",-142],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26932"]],VERT_CS["NAVD88 height",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5703"]],AUTHORITY["EPSG","8804"]]');

MapServer

How to add a projection to MapServer? →

PROJECTION
  "+proj=tmerc"
  "+lat_0=54"
  "+lon_0=-142"
  "+k=0.9999"
  "+x_0=500000"
  "+y_0=0"
  "+datum=NAD83"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

GeoServer

How to add a projection to GeoServer? →

8804=COMPD_CS["NAD83 / Alaska zone 2 + NAVD88 height",PROJCS["NAD83 / Alaska zone 2",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",54],PARAMETER["central_meridian",-142],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26932"]],VERT_CS["NAVD88 height",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5703"]],AUTHORITY["EPSG","8804"]]

Frequently Asked Questions

How do I add EPSG:8804 to GeoServer?

Add the following definition to your GeoServer configuration:

8804=COMPD_CS["NAD83 / Alaska zone 2 + NAVD88 height",PROJCS["NAD83 / Alaska zone 2",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",54],PARAMETER["central_meridian",-142],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26932"]],VERT_CS["NAVD88 height",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5703"]],AUTHORITY["EPSG","8804"]]

Read the full GeoServer guide →

How do I add EPSG:8804 to PostGIS?

Add the following definition to your PostGIS configuration:

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (8804, 'EPSG', 8804, '+proj=tmerc +lat_0=54 +lon_0=-142 +k=0.9999 +x_0=500000 +y_0=0 +datum=NAD83 +units=m +vunits=m +no_defs +type=crs', 'COMPD_CS["NAD83 / Alaska zone 2 + NAVD88 height",PROJCS["NAD83 / Alaska zone 2",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",54],PARAMETER["central_meridian",-142],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26932"]],VERT_CS["NAVD88 height",VERT_DATUM["North American Vertical Datum 1988",2005,AUTHORITY["EPSG","5103"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","5703"]],AUTHORITY["EPSG","8804"]]');

Read the full PostGIS guide →

How do I add EPSG:8804 to MapServer?

Add the following definition to your MapServer configuration:

PROJECTION
  "+proj=tmerc"
  "+lat_0=54"
  "+lon_0=-142"
  "+k=0.9999"
  "+x_0=500000"
  "+y_0=0"
  "+datum=NAD83"
  "+units=m"
  "+vunits=m"
  "+no_defs"
  "+type=crs"
END

Read the full MapServer guide →

How do I use EPSG:8804 with Proj4js?

Add the following definition to your Proj4js configuration:

proj4.defs("EPSG:8804", "+proj=tmerc +lat_0=54 +lon_0=-142 +k=0.9999 +x_0=500000 +y_0=0 +datum=NAD83 +units=m +vunits=m +no_defs +type=crs");

Read the full Proj4js guide →