EPSG:27702

WGS 84 / Equi7 Antarctica

Attributes

Unit: metre

Geodetic CRS: WGS 84

Datum: World Geodetic System 1984 ensemble

Data source: EPSG

Information source: "Optimisation of global grids for high-resolution remote sensing data", Bernhard Bauer-Marschallinger, Vienna University of Technology (TU Wien).

Revision date: 2024-01-04

Scope: Continental mapping of raster data.

Remarks: Basis for the Equi7 grid for Antarctica. Designed in 2014 to efficiently handle the archiving, processing, and displaying of high resolution raster data over land while preserving geometric accuracy. Neither conformal nor equal area.

Area of use: Antarctica.

Coordinate system: Cartesian 2D CS for UPS south. Axes: E,N. Orientations: E along 90°E, N along 0°E meridians. UoM: m.

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SimpleMap

Center coordinates
3714266.98 6779433.07

Projected bounds:
-2408935.51 -2784152.26
9837469.46 9588185.27

WGS84 bounds:
-180.0 -90.0
180.0 -34.47

Antarctica.
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Definition: OGC Well Known Text

PROJCS["WGS 84 / Equi7 Antarctica",
    GEOGCS["WGS 84",
        DATUM["WGS_1984",
            SPHEROID["WGS 84",6378137,298.257223563,
                AUTHORITY["EPSG","7030"]],
            AUTHORITY["EPSG","6326"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4326"]],
    PROJECTION["Azimuthal_Equidistant"],
    PARAMETER["latitude_of_center",-90],
    PARAMETER["longitude_of_center",0],
    PARAMETER["false_easting",3714266.977],
    PARAMETER["false_northing",3402016.506],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","27702"]]

Definition: OGC Well Known Text 2 (2019)

PROJCRS["WGS 84 / Equi7 Antarctica",
    BASEGEOGCRS["WGS 84",
        ENSEMBLE["World Geodetic System 1984 ensemble",
            MEMBER["World Geodetic System 1984 (Transit)"],
            MEMBER["World Geodetic System 1984 (G730)"],
            MEMBER["World Geodetic System 1984 (G873)"],
            MEMBER["World Geodetic System 1984 (G1150)"],
            MEMBER["World Geodetic System 1984 (G1674)"],
            MEMBER["World Geodetic System 1984 (G1762)"],
            MEMBER["World Geodetic System 1984 (G2139)"],
            MEMBER["World Geodetic System 1984 (G2296)"],
            ELLIPSOID["WGS 84",6378137,298.257223563,
                LENGTHUNIT["metre",1]],
            ENSEMBLEACCURACY[2.0]],
        PRIMEM["Greenwich",0,
            ANGLEUNIT["degree",0.0174532925199433]],
        ID["EPSG",4326]],
    CONVERSION["Equi7 projection - Antarctica",
        METHOD["Azimuthal Equidistant",
            ID["EPSG",1125]],
        PARAMETER["Latitude of natural origin",-90,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8801]],
        PARAMETER["Longitude of natural origin",0,
            ANGLEUNIT["degree",0.0174532925199433],
            ID["EPSG",8802]],
        PARAMETER["False easting",3714266.977,
            LENGTHUNIT["metre",1],
            ID["EPSG",8806]],
        PARAMETER["False northing",3402016.506,
            LENGTHUNIT["metre",1],
            ID["EPSG",8807]]],
    CS[Cartesian,2],
        AXIS["(E)",north,
            MERIDIAN[90,
                ANGLEUNIT["degree",0.0174532925199433]],
            ORDER[1],
            LENGTHUNIT["metre",1]],
        AXIS["(N)",north,
            MERIDIAN[0,
                ANGLEUNIT["degree",0.0174532925199433]],
            ORDER[2],
            LENGTHUNIT["metre",1]],
    USAGE[
        SCOPE["Continental mapping of raster data."],
        AREA["Antarctica."],
        BBOX[-90,-180,-34.47,180]],
    ID["EPSG",27702]]

Definition: ESRI Well Known Text

PROJCS["WGS_1984_Equi7_Antarctica",
    GEOGCS["GCS_WGS_1984",
        DATUM["D_WGS_1984",
            SPHEROID["WGS_1984",6378137.0,298.257223563]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Azimuthal_Equidistant"],
    PARAMETER["False_Easting",3714266.977],
    PARAMETER["False_Northing",3402016.506],
    PARAMETER["Central_Meridian",0.0],
    PARAMETER["Latitude_Of_Origin",-90.0],
    UNIT["Meter",1.0]]

Definition: PROJ.4

+proj=aeqd +lat_0=-90 +lon_0=0 +x_0=3714266.977 +y_0=3402016.506 +datum=WGS84 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js) 

proj4.defs("EPSG:27702","+proj=aeqd +lat_0=-90 +lon_0=0 +x_0=3714266.977 +y_0=3402016.506 +datum=WGS84 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "ProjectedCRS",
    "name": "WGS 84 / Equi7 Antarctica",
    "base_crs": {
        "type": "GeographicCRS",
        "name": "WGS 84",
        "datum_ensemble": {
            "name": "World Geodetic System 1984 ensemble",
            "members": [
                {
                    "name": "World Geodetic System 1984 (Transit)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1166
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G730)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1152
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G873)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1153
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1150)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1154
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1674)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1155
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G1762)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1156
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2139)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1309
                    }
                },
                {
                    "name": "World Geodetic System 1984 (G2296)",
                    "id": {
                        "authority": "EPSG",
                        "code": 1383
                    }
                }
            ],
            "ellipsoid": {
                "name": "WGS 84",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257223563
            },
            "accuracy": "2.0",
            "id": {
                "authority": "EPSG",
                "code": 6326
            }
        },
        "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": 4326
        }
    },
    "conversion": {
        "name": "Equi7 projection - Antarctica",
        "method": {
            "name": "Azimuthal Equidistant",
            "id": {
                "authority": "EPSG",
                "code": 1125
            }
        },
        "parameters": [
            {
                "name": "Latitude of natural origin",
                "value": -90,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8801
                }
            },
            {
                "name": "Longitude of natural origin",
                "value": 0,
                "unit": "degree",
                "id": {
                    "authority": "EPSG",
                    "code": 8802
                }
            },
            {
                "name": "False easting",
                "value": 3714266.977,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8806
                }
            },
            {
                "name": "False northing",
                "value": 3402016.506,
                "unit": "metre",
                "id": {
                    "authority": "EPSG",
                    "code": 8807
                }
            }
        ]
    },
    "coordinate_system": {
        "subtype": "Cartesian",
        "axis": [
            {
                "name": "Easting",
                "abbreviation": "E",
                "direction": "north",
                "meridian": {
                    "longitude": 90
                },
                "unit": "metre"
            },
            {
                "name": "Northing",
                "abbreviation": "N",
                "direction": "north",
                "meridian": {
                    "longitude": 0
                },
                "unit": "metre"
            }
        ]
    },
    "scope": "Continental mapping of raster data.",
    "area": "Antarctica.",
    "bbox": {
        "south_latitude": -90,
        "west_longitude": -180,
        "north_latitude": -34.47,
        "east_longitude": 180
    },
    "id": {
        "authority": "EPSG",
        "code": 27702
    }
}

Definition: GeoServer

27702=PROJCS["WGS 84 / Equi7 Antarctica",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Azimuthal_Equidistant"],PARAMETER["latitude_of_center",-90],PARAMETER["longitude_of_center",0],PARAMETER["false_easting",3714266.977],PARAMETER["false_northing",3402016.506],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","27702"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=aeqd"
	"lat_0=-90"
	"lon_0=0"
	"x_0=3714266.977"
	"y_0=3402016.506"
	"datum=WGS84"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=aeqd +lat_0=-90 +lon_0=0 +x_0=3714266.977 +y_0=3402016.506 +datum=WGS84 +units=m +no_defs +type=crs">
	<Layer srs="+proj=aeqd +lat_0=-90 +lon_0=0 +x_0=3714266.977 +y_0=3402016.506 +datum=WGS84 +units=m +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 27702, 'EPSG', 27702, '+proj=aeqd +lat_0=-90 +lon_0=0 +x_0=3714266.977 +y_0=3402016.506 +datum=WGS84 +units=m +no_defs +type=crs', 'PROJCS["WGS 84 / Equi7 Antarctica",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Azimuthal_Equidistant"],PARAMETER["latitude_of_center",-90],PARAMETER["longitude_of_center",0],PARAMETER["false_easting",3714266.977],PARAMETER["false_northing",3402016.506],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","27702"]]');