Geodetic CRS: MAGNA-SIRGAS 2018
Datum: Marco Geocentrico Nacional de Referencia 2018
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Instituto Geografico Agustin Codazzi (IGAC) Resolution 515 of 2026, http://www.igac.gov.co/ and Liu et al. "High-resolution regional gravity field modeling ...", Earth, Planets and Space (2024) 76:35, https://doi.org/10.1186/s40623-024-01981-1
Revision date: 2026-07-20
Scope: Derivation of gravity-related heights from GNSS observations.
Remarks: Realizes COLGVD2023 heights. For reversible alternative see MAGNA-SIRGAS 2018 to MAGNA-SIRGAS 2018 + COLGVD2023 height (1) (code 11897).
Method: Geographic3D to GravityRelatedHeight (txt)
Area of use: Colombia - mainland onshore.
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
COORDINATEOPERATION["MAGNA-SIRGAS 2018 to COLGVD2023 height (1)", VERSION["IGAC-Col 2023"], SOURCECRS[ GEOGCRS["MAGNA-SIRGAS 2018", DATUM["Marco Geocentrico Nacional de Referencia 2018", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,3], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], AXIS["ellipsoidal height (h)",up, ORDER[3], LENGTHUNIT["metre",1]], ID["EPSG",20045]]], TARGETCRS[ VERTCRS["COLGVD2023 height", VDATUM["Colombian Geodetic Vertical Datum 2023"], CS[vertical,1], AXIS["gravity-related height (H)",up, LENGTHUNIT["metre",1]], ID["EPSG",11513]]], METHOD["Geographic3D to GravityRelatedHeight (txt)", ID["EPSG",1082]], PARAMETERFILE["Geoid (height correction) model file","QgeoidCOL2023.txt"], OPERATIONACCURACY[0.04], USAGE[ SCOPE["Derivation of gravity-related heights from GNSS observations."], AREA["Colombia - mainland onshore."], BBOX[-4.23,-79.1,12.52,-66.87]], ID["EPSG",11896], REMARK["Realizes COLGVD2023 heights. For reversible alternative see MAGNA-SIRGAS 2018 to MAGNA-SIRGAS 2018 + COLGVD2023 height (1) (code 11897)."]]
Definition: PROJ.4
+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=co_igac_QGeoidCOL2023.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:11896","+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=co_igac_QGeoidCOL2023.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "Transformation", "name": "MAGNA-SIRGAS 2018 to COLGVD2023 height (1)", "source_crs": { "type": "GeographicCRS", "name": "MAGNA-SIRGAS 2018", "datum": { "type": "GeodeticReferenceFrame", "name": "Marco Geocentrico Nacional de Referencia 2018", "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" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 20045 } }, "target_crs": { "type": "VerticalCRS", "name": "COLGVD2023 height", "datum": { "type": "VerticalReferenceFrame", "name": "Colombian Geodetic Vertical Datum 2023" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 11513 } }, "method": { "name": "Geographic3D to GravityRelatedHeight (txt)", "id": { "authority": "EPSG", "code": 1082 } }, "parameters": [ { "name": "Geoid (height correction) model file", "value": "QgeoidCOL2023.txt", "id": { "authority": "EPSG", "code": 8666 } } ], "accuracy": "0.04", "scope": "Derivation of gravity-related heights from GNSS observations.", "area": "Colombia - mainland onshore.", "bbox": { "south_latitude": -4.23, "west_longitude": -79.1, "north_latitude": 12.52, "east_longitude": -66.87 }, "id": { "authority": "EPSG", "code": 11896 }, "remarks": "Realizes COLGVD2023 heights. For reversible alternative see MAGNA-SIRGAS 2018 to MAGNA-SIRGAS 2018 + COLGVD2023 height (1) (code 11897)." }
Definition: MapServer - MAPfile
PROJECTION "proj=pipeline" "step" "proj=axisswap" "order=2,1" "step" "proj=unitconvert" "xy_in=deg" "xy_out=rad" "step" "inv" "proj=vgridshift" "grids=co_igac_QGeoidCOL2023.tif" "multiplier=1" "step" "proj=unitconvert" "xy_in=rad" "xy_out=deg" "step" "proj=axisswap" "order=2,1" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=co_igac_QGeoidCOL2023.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> <Layer srs="+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=co_igac_QGeoidCOL2023.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 11896, 'EPSG', 11896, '+proj=pipeline +step +proj=axisswap +order=2,1 +step +proj=unitconvert +xy_in=deg +xy_out=rad +step +inv +proj=vgridshift +grids=co_igac_QGeoidCOL2023.tif +multiplier=1 +step +proj=unitconvert +xy_in=rad +xy_out=deg +step +proj=axisswap +order=2,1', 'None');