EPSG:31972

SIRGAS 2000 / UTM zone 18N

Available transformations
to EPSG:8987
EPSG:8987 - SIRGAS-CON SIR17P01

Selected transformation

Method: NTv2

Grid Files: SIRGAS2000-to-SIRGAS-CONSIR17P01.gsb

Remarks: Derived at 79 stations at epoch 2015.00. Accuracy deteriorates with time due to intra-plate seismic deformation.

Information source: SIRGAS Working Group I, "Relación y modelos de transformación entre las soluciones SIRGAS95, SIRGAS2000 y SIR17P01. Resultados obtenidos", presented at SIMPOSIO SIRGAS 2021 Perú, 29 Nov-01 Dec 2021.

Revision date: 2022-04-08

Attributes

Unit: metre

Geodetic CRS: SIRGAS 2000

Datum: Sistema de Referencia Geocentrico para las AmericaS 2000

Ellipsoid: GRS 1980

Prime meridian: Greenwich

Data source: EPSG

Information source: OGP

Revision date: 2006-07-21

Center coordinates
636865.61 -1501078.91

Projected bounds:
-5476395.32 -7703800.0
6902640.13 4970508.86

WGS84 bounds:
-122.19 -59.87
-25.28 32.72

Latin America - Central America and South America, onshore and offshore.
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Definition: OGC Well Known Text 2 (2019)

BOUNDCRS[
    SOURCECRS[
        PROJCRS["SIRGAS 2000 / UTM zone 18N",
            BASEGEOGCRS["SIRGAS 2000",
                DATUM["Sistema de Referencia Geocentrico para las AmericaS 2000",
                    ELLIPSOID["GRS 1980",6378137,298.257222101,
                        LENGTHUNIT["metre",1]]],
                PRIMEM["Greenwich",0,
                    ANGLEUNIT["degree",0.0174532925199433]],
                ID["EPSG",4674]],
            CONVERSION["UTM zone 18N",
                METHOD["Transverse Mercator",
                    ID["EPSG",9807]],
                PARAMETER["Latitude of natural origin",0,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8801]],
                PARAMETER["Longitude of natural origin",-75,
                    ANGLEUNIT["degree",0.0174532925199433],
                    ID["EPSG",8802]],
                PARAMETER["Scale factor at natural origin",0.9996,
                    SCALEUNIT["unity",1],
                    ID["EPSG",8805]],
                PARAMETER["False easting",500000,
                    LENGTHUNIT["metre",1],
                    ID["EPSG",8806]],
                PARAMETER["False northing",0,
                    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["Engineering survey, topographic mapping."],
                AREA["Latin America - Central America and South America - between 78°W and 72°W, northern hemisphere, onshore and offshore."],
                BBOX[0,-78,15.04,-72]],
            ID["EPSG",31972]]],
    TARGETCRS[
        GEOGCRS["SIRGAS-CON SIR17P01",
            DYNAMIC[
                FRAMEEPOCH[2015]],
            DATUM["SIRGAS Continuously Operating Network SIR17P01",
                ELLIPSOID["GRS 1980",6378137,298.257222101,
                    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["Latin America - Central America and South America, onshore and offshore."],
                BBOX[-59.87,-122.19,32.72,-25.28]],
            ID["EPSG",8987]]],
    ABRIDGEDTRANSFORMATION["SIRGAS 2000 to SIRGAS-CON SIR17P01 (1)",
        METHOD["NTv2",
            ID["EPSG",9615]],
        PARAMETERFILE["Latitude and longitude difference file","SIRGAS2000-to-SIRGAS-CONSIR17P01.gsb"],
        USAGE[
            SCOPE["Transformation of coordinates at 0.02m level of accuracy."],
            AREA["Latin America - Central America and South America, onshore and offshore."],
            BBOX[-59.87,-122.19,32.72,-25.28]],
        ID["EPSG",9980],
        REMARK["Derived at 79 stations at epoch 2015.00. Accuracy deteriorates with time due to intra-plate seismic deformation."]]]

Definition: PROJ.4

+proj=utm +zone=18 +ellps=GRS80 +units=m +no_defs +type=crs

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:31972","+proj=utm +zone=18 +ellps=GRS80 +units=m +no_defs +type=crs");

Definition: JSON

{
    "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
    "type": "BoundCRS",
    "source_crs": {
        "type": "ProjectedCRS",
        "name": "SIRGAS 2000 / UTM zone 18N",
        "base_crs": {
            "name": "SIRGAS 2000",
            "datum": {
                "type": "GeodeticReferenceFrame",
                "name": "Sistema de Referencia Geocentrico para las AmericaS 2000",
                "ellipsoid": {
                    "name": "GRS 1980",
                    "semi_major_axis": 6378137,
                    "inverse_flattening": 298.257222101
                }
            },
            "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": 4674
            }
        },
        "conversion": {
            "name": "UTM zone 18N",
            "method": {
                "name": "Transverse Mercator",
                "id": {
                    "authority": "EPSG",
                    "code": 9807
                }
            },
            "parameters": [
                {
                    "name": "Latitude of natural origin",
                    "value": 0,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8801
                    }
                },
                {
                    "name": "Longitude of natural origin",
                    "value": -75,
                    "unit": "degree",
                    "id": {
                        "authority": "EPSG",
                        "code": 8802
                    }
                },
                {
                    "name": "Scale factor at natural origin",
                    "value": 0.9996,
                    "unit": "unity",
                    "id": {
                        "authority": "EPSG",
                        "code": 8805
                    }
                },
                {
                    "name": "False easting",
                    "value": 500000,
                    "unit": "metre",
                    "id": {
                        "authority": "EPSG",
                        "code": 8806
                    }
                },
                {
                    "name": "False northing",
                    "value": 0,
                    "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"
                }
            ]
        },
        "id": {
            "authority": "EPSG",
            "code": 31972
        }
    },
    "target_crs": {
        "type": "GeographicCRS",
        "name": "SIRGAS-CON SIR17P01",
        "datum": {
            "type": "DynamicGeodeticReferenceFrame",
            "name": "SIRGAS Continuously Operating Network SIR17P01",
            "frame_reference_epoch": 2015,
            "ellipsoid": {
                "name": "GRS 1980",
                "semi_major_axis": 6378137,
                "inverse_flattening": 298.257222101
            }
        },
        "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": 8987
        }
    },
    "transformation": {
        "name": "SIRGAS 2000 to SIRGAS-CON SIR17P01 (1)",
        "method": {
            "name": "NTv2",
            "id": {
                "authority": "EPSG",
                "code": 9615
            }
        },
        "parameters": [
            {
                "name": "Latitude and longitude difference file",
                "value": "SIRGAS2000-to-SIRGAS-CONSIR17P01.gsb",
                "id": {
                    "authority": "EPSG",
                    "code": 8656
                }
            }
        ],
        "id": {
            "authority": "EPSG",
            "code": 9980
        }
    }
}

Definition: MapServer - MAPfile

PROJECTION
	"proj=utm"
	"zone=18"
	"ellps=GRS80"
	"units=m"
	"no_defs"
	"type=crs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=utm +zone=18 +ellps=GRS80 +units=m +no_defs +type=crs">
	<Layer srs="+proj=utm +zone=18 +ellps=GRS80 +units=m +no_defs +type=crs">
	</Layer>
</Map>