Coordinate Frame rotation (geog2D domain)
Used by CIDDEMA for delimitation of Angola's EEZ boundary. Derived by Univ. of Lisbon using 38 REPANGOL points. Average horizontal error 1m, vertical 3m; max radial error 6m. Application offshore differs from Camacupa 1948 to WGS 84 by approx 25m.
University of Lisbon and Comissão Interministerial para a Delimitação e Demarcação dos Espaços Marítimos de Angola (CIDDEMA).
2021-09-23
degree (supplier to define representation)
EPSG
University of Lisbon and Comissão Interministerial para a Delimitação e Demarcação dos Espaços Marítimos de Angola (CIDDEMA).
2018-12-04
EEZ delimitation.
Camacupa 1948 (CRS code 4220) is used for offshore oil and gas exploration and production. Camacupa 2015 differs from Camacupa 1948 by up to 25m.
Angola - onshore and offshore.
Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree
Definition: OGC Well Known Text
GEOGCS["Camacupa 2015", DATUM["Camacupa_2015", SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465], TOWGS84[-93.799,-132.737,-219.073,1.844,-0.648,6.37,-0.169]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","8694"]]
Definition: OGC Well Known Text 2 (2019)
GEOGCRS["Camacupa 2015", DATUM["Camacupa 2015", ELLIPSOID["Clarke 1880 (RGS)",6378249.145,293.465, 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]], USAGE[ SCOPE["EEZ delimitation."], AREA["Angola - onshore and offshore."], BBOX[-18.02,8.2,-4.38,24.09]], ID["EPSG",8694]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "GeographicCRS", "name": "Camacupa 2015", "datum": { "type": "GeodeticReferenceFrame", "name": "Camacupa 2015", "ellipsoid": { "name": "Clarke 1880 (RGS)", "semi_major_axis": 6378249.145, "inverse_flattening": 293.465 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "scope": "EEZ delimitation.", "area": "Angola - onshore and offshore.", "bbox": { "south_latitude": -18.02, "west_longitude": 8.2, "north_latitude": -4.38, "east_longitude": 24.09 }, "id": { "authority": "EPSG", "code": 8694 } }
Definition: GeoServer
8694=GEOGCS["Camacupa 2015",DATUM["Camacupa_2015",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-93.799,-132.737,-219.073,1.844,-0.648,6.37,-0.169]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","8694"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-93.799,-132.737,-219.073,1.844,-0.648,6.37,-0.169 +no_defs +type=crs"> <Layer srs="+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-93.799,-132.737,-219.073,1.844,-0.648,6.37,-0.169 +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 8694, 'EPSG', 8694, '+proj=longlat +a=6378249.145 +rf=293.465 +towgs84=-93.799,-132.737,-219.073,1.844,-0.648,6.37,-0.169 +no_defs +type=crs', 'GEOGCS["Camacupa 2015",DATUM["Camacupa_2015",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465],TOWGS84[-93.799,-132.737,-219.073,1.844,-0.648,6.37,-0.169]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","8694"]]');