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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 Oceania. 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: Australasia and the western Pacific Ocean.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
&stroke=red&width=2&path=-60.56,72.37|21.57,72.37|21.57,-121.05|-60.56,-121.05|-60.56,72.37)
Center coordinates
9516079.0 7474861.37
Projected bounds:
227344.3 -308053.2
19198052.67 12197881.28
WGS84 bounds:
72.37 -60.56
-121.05 21.57
Definition: OGC Well Known Text
PROJCS["WGS 84 / Equi7 Oceania", 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",-19.5], PARAMETER["longitude_of_center",131.5], PARAMETER["false_easting",6988408.536], PARAMETER["false_northing",7654884.537], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","27706"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["WGS 84 / Equi7 Oceania", 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 - Oceania", METHOD["Azimuthal Equidistant", ID["EPSG",1125]], PARAMETER["Latitude of natural origin",-19.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",131.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["False easting",6988408.536, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",7654884.537, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["(E)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["(N)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Continental mapping of raster data."], AREA["Australasia and the western Pacific Ocean."], BBOX[-60.56,72.37,21.57,-121.05]], ID["EPSG",27706]]
Definition: ESRI Well Known Text
PROJCS["WGS_1984_Equi7_Oceania", 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",6988408.536], PARAMETER["False_Northing",7654884.537], PARAMETER["Central_Meridian",131.5], PARAMETER["Latitude_Of_Origin",-19.5], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "WGS 84 / Equi7 Oceania", "base_crs": { "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 - Oceania", "method": { "name": "Azimuthal Equidistant", "id": { "authority": "EPSG", "code": 1125 } }, "parameters": [ { "name": "Latitude of natural origin", "value": -19.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": 131.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "False easting", "value": 6988408.536, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 7654884.537, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" } ] }, "scope": "Continental mapping of raster data.", "area": "Australasia and the western Pacific Ocean.", "bbox": { "south_latitude": -60.56, "west_longitude": 72.37, "north_latitude": 21.57, "east_longitude": -121.05 }, "id": { "authority": "EPSG", "code": 27706 } }
Definition: GeoServer
27706=PROJCS["WGS 84 / Equi7 Oceania",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",-19.5],PARAMETER["longitude_of_center",131.5],PARAMETER["false_easting",6988408.536],PARAMETER["false_northing",7654884.537],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","27706"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=aeqd +lat_0=-19.5 +lon_0=131.5 +x_0=6988408.536 +y_0=7654884.537 +datum=WGS84 +units=m +no_defs +type=crs"> <Layer srs="+proj=aeqd +lat_0=-19.5 +lon_0=131.5 +x_0=6988408.536 +y_0=7654884.537 +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 ( 27706, 'EPSG', 27706, '+proj=aeqd +lat_0=-19.5 +lon_0=131.5 +x_0=6988408.536 +y_0=7654884.537 +datum=WGS84 +units=m +no_defs +type=crs', 'PROJCS["WGS 84 / Equi7 Oceania",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",-19.5],PARAMETER["longitude_of_center",131.5],PARAMETER["false_easting",6988408.536],PARAMETER["false_northing",7654884.537],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","27706"]]');
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