NB7783v2.gsb
Approximation at the +/- 1m level assuming that NAD83(CSRS98) is equivalent to WGS 84.
OGP
1999-10-20
metre
Average Terrestrial System 1977
Average Terrestrial System 1977
EPSG
New Brunswick Geographic Information Corporation land and water information standards manual.
1997-07-22
Engineering survey, topographic mapping.
In use from 1979. To be phased out in late 1990's.
Canada - New Brunswick and Nova Scotia east of 66°W; Prince Edward Island.
Cartesian 2D CS. Axes: easting, northing (E,N). Orientations: east, north. UoM: m.
240156.93 5134579.83
19515.52 4934307.53
447850.56 5341805.88
-69.05 44.56
-63.7 48.07
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ BOUNDCRS[ SOURCECRS[ PROJCRS["ATS77 / UTM zone 20N", BASEGEOGCRS["ATS77", DATUM["Average Terrestrial System 1977", ELLIPSOID["Average Terrestrial System 1977",6378135,298.257, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4122]], CONVERSION["UTM zone 20N", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",0, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-63, 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]], ID["EPSG",2220]]], TARGETCRS[ GEOGCRS["NAD83(CSRS98)", DATUM["NAD83 Canadian Spatial Reference System", 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 minute second hemisphere",0.0174532925199433]], AXIS["geodetic longitude (Long)",east, ORDER[2], ANGLEUNIT["degree minute second hemisphere",0.0174532925199433]], ID["EPSG",4140]]], ABRIDGEDTRANSFORMATION["ATS77 to NAD83(CSRS98) (1)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","NB7783v2.gsb"], ID["EPSG",1472]]]], 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["NAD83(CSRS98) to WGS 84 (1)", METHOD["Geocentric translations (geog2D domain)", ID["EPSG",9603]], PARAMETER["X-axis translation",0, ID["EPSG",8605]], PARAMETER["Y-axis translation",0, ID["EPSG",8606]], PARAMETER["Z-axis translation",0, ID["EPSG",8607]], 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["Canada - Alberta; New Brunswick; Saskatchewan; Prince Edward Island; and Quebec."], BBOX[44.61,-120,62.56,-57.1]], ID["EPSG",1473], REMARK["For many purposes NAD83(CSRS98) can be considered to be coincident with WGS 84."]]]
Definition: JSON
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{ "name": "Longitude of natural origin", "value": -63, "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": 2220 } }, "target_crs": { "type": "GeographicCRS", "name": "NAD83(CSRS98)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 Canadian Spatial Reference System", "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": { "type": "AngularUnit", "name": "degree minute second hemisphere", "conversion_factor": 0.0174532925199433 } }, { "name": "Geodetic longitude", "abbreviation": "Long", "direction": "east", "unit": { "type": "AngularUnit", "name": "degree minute second hemisphere", "conversion_factor": 0.0174532925199433 } } ] }, "id": { "authority": "EPSG", "code": 4140 } }, "transformation": { "name": "ATS77 to NAD83(CSRS98) (1)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "NB7783v2.gsb", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 1472 } } }, "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": "NAD83(CSRS98) to WGS 84 (1)", "source_crs": { "type": "GeographicCRS", "name": "NAD83(CSRS98)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 Canadian Spatial Reference System", "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": { "type": "AngularUnit", "name": "degree minute second hemisphere", "conversion_factor": 0.0174532925199433 } }, { "name": "Geodetic longitude", "abbreviation": "Long", "direction": "east", "unit": { "type": "AngularUnit", "name": "degree minute second hemisphere", "conversion_factor": 0.0174532925199433 } } ] }, "id": { "authority": "EPSG", "code": 4140 } }, "method": { "name": "Geocentric translations (geog2D domain)", "id": { "authority": "EPSG", "code": 9603 } }, "parameters": [ { "name": "X-axis translation", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8605 } }, { "name": "Y-axis translation", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8606 } }, { "name": "Z-axis translation", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8607 } } ], "id": { "authority": "EPSG", "code": 1473 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=utm +zone=20 +a=6378135 +rf=298.257 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"> <Layer srs="+proj=utm +zone=20 +a=6378135 +rf=298.257 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs +type=crs"> </Layer> </Map>