Corrego Alegre 1961

Brazil , accuracy 2.0 m, code 5540 (default) [grid]

Selected transformation

Method: NTv2

Grid Files: CA61_003.gsb

Remarks: Parameters from Corrego Alegre 1961 to SIRGAS 2000 (1) (tfm code 5525) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation.

Information source: OGP

Revision date: 2021-09-23

Attributes

Unit: degree (supplier to define representation)

Geodetic CRS: Corrego Alegre 1961

Datum: Corrego Alegre 1961

Ellipsoid: International 1924

Prime meridian: Greenwich

Data source: EPSG

Information source: IBGE.

Revision date: 2011-07-19

Scope: Geodesy.

Remarks: Replaced by Corrego Alegre 1970-72 (CRS code 4225).

Area of use: Brazil - onshore - between 18°S and 27°30'S, also east of 54°W between 15°S and 18°S.

Coordinate system: Ellipsoidal 2D CS. Axes: latitude, longitude. Orientations: north, east. UoM: degree

Covered area powered by MapTiler

Center coordinates
-48.49 -21.24

WGS84 bounds:
-58.16 -27.5
-38.82 -14.99

Brazil - onshore - between 18°S and 27°30'S, also east of 54°W between 15°S and 18°S.

Definition: OGC Well Known Text

Open
Copy URL
Copy Text
Copy Formatted
API
Download

GEOGCS["Corrego Alegre 1961",
    DATUM["Corrego_Alegre_1961",
        SPHEROID["International 1924",6378388,297],
        EXTENSION["PROJ4_GRIDS","CA61_003.gsb"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","5524"]]

Definition: OGC Well Known Text 2 (2019)

Open
Copy URL
Copy Text
Copy Formatted
API
Download

BOUNDCRS[
    SOURCECRS[
        GEOGCRS["Corrego Alegre 1961",
            DATUM["Corrego Alegre 1961",
                ELLIPSOID["International 1924",6378388,297,
                    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["Geodesy."],
                AREA["Brazil - onshore - between 18°S and 27°30'S, also east of 54°W between 15°S and 18°S."],
                BBOX[-27.5,-58.16,-14.99,-38.82]],
            ID["EPSG",5524]]],
    TARGETCRS[
        GEOGCRS["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)"],
                ELLIPSOID["WGS 84",6378137,298.257223563,
                    LENGTHUNIT["metre",1]],
                ENSEMBLEACCURACY[2.0]],
            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["Horizontal component of 3D system."],
                AREA["World."],
                BBOX[-90,-180,90,180]],
            ID["EPSG",4326]]],
    ABRIDGEDTRANSFORMATION["Corrego Alegre 1961 to WGS 84 (1)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","CA61_003.gsb"],
        USAGE[
            SCOPE["(null/copy) Approximation for medium and low accuracy applications assuming equality between plate-fixed static and earth-fixed dynamic CRSs, ignoring static/dynamic CRS differences."],
            AREA["Brazil - onshore - between 18°S and 27°30'S, also east of 54°W between 15°S and 18°S."],
            BBOX[-27.5,-58.16,-14.99,-38.82]],
        ID["EPSG",5540],
        REMARK["Parameters from Corrego Alegre 1961 to SIRGAS 2000 (1) (tfm code 5525) assuming that SIRGAS 2000 and WGS 84 are equal within the accuracy of the transformation."]]]

Definition: ESRI Well Known Text

Open
Copy URL
Copy Text
Copy Formatted
API
Download

GEOGCS["GCS_Corrego_Alegre_1961",
    DATUM["D_Corrego_Alegre_1961",
        SPHEROID["International_1924",6378388.0,297.0],
        EXTENSION["PROJ4_GRIDS","CA61_003.gsb"]],
    PRIMEM["Greenwich",0.0],
    UNIT["Degree",0.0174532925199433]]

Definition: PROJ.4

+proj=longlat +ellps=intl +nadgrids=CA61_003.gsb +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:5524","+proj=longlat +ellps=intl +nadgrids=CA61_003.gsb +no_defs +type=crs");

Definition: JSON

Open
Copy URL
Copy Text
Copy Formatted
API
Download

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "GeographicCRS",
        "name": "Corrego Alegre 1961",
        "datum": {
            "type": "GeodeticReferenceFrame",
            "name": "Corrego Alegre 1961",
            "ellipsoid": {
                "name": "International 1924",
                "semi_major_axis": 6378388,
                "inverse_flattening": 297
            }
        },
        "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": 5524
        }
    },
    "target_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
                    }
                }
            ],
            "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
        }
    },
    "transformation": {
        "name": "Corrego Alegre 1961 to WGS 84 (1)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "CA61_003.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 5540
        }
    }
}

Definition: GeoServer

5524=GEOGCS["Corrego Alegre 1961",DATUM["Corrego_Alegre_1961",SPHEROID["International 1924",6378388,297],EXTENSION["PROJ4_GRIDS","CA61_003.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","5524"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=longlat"
	"ellps=intl"
	"nadgrids=CA61_003.gsb"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=longlat +ellps=intl +nadgrids=CA61_003.gsb +no_defs +type=crs">
	<Layer srs="+proj=longlat +ellps=intl +nadgrids=CA61_003.gsb +no_defs +type=crs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 5524, 'EPSG', 5524, '+proj=longlat +ellps=intl +nadgrids=CA61_003.gsb +no_defs +type=crs', 'GEOGCS["Corrego Alegre 1961",DATUM["Corrego_Alegre_1961",SPHEROID["International 1924",6378388,297],EXTENSION["PROJ4_GRIDS","CA61_003.gsb"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","5524"]]');

EPSG:5524