Name: ATS77 to NAD83 (1)
Method: NTv2
Grid Files: GS7783.GSB
Remarks:
Information source: Nova Scotia Geomatics Centre via ISO Geodetic Register.
Revision date: 2019-05-29
Unit: metre
Geodetic CRS: ATS77
Datum: Average Terrestrial System 1977
Ellipsoid: Average Terrestrial System 1977
Prime meridian: Greenwich
Data source: EPSG
Information source: New Brunswick Geographic Information Corporation land and water information standards manual.
Revision date: 2011-10-08
Scope: Engineering survey, topographic mapping.
Remarks: In use from 1979. Replaces NAD27 / NB Stereographic (CRS code 5588). Replaced by NAD83(CSRS) / NB Stereographic (CRS code 2953).
Area of use: Canada - New Brunswick.
Coordinate system: Cartesian 2D CS. Axes: northing, easting (N,E). Orientations: north, east. UoM: m.
Center coordinates
574351.99 666519.99
Projected bounds:
316703.64 456573.97
848374.85 886615.68
WGS84 bounds:
-66.28 43.41
-59.73 47.08
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["ATS77 / New Brunswick Stereographic (ATS77)", 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["New Brunswick Stereographic (ATS77)", METHOD["Oblique Stereographic", ID["EPSG",9809]], PARAMETER["Latitude of natural origin",46.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-66.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.999912, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",300000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",800000, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["northing (N)",north, ORDER[1], LENGTHUNIT["metre",1]], AXIS["easting (E)",east, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["Canada - New Brunswick."], BBOX[44.56,-69.05,48.07,-63.7]], ID["EPSG",2200]]], TARGETCRS[ GEOGCRS["NAD83", DATUM["North American Datum 1983", 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["North America - onshore and offshore: Canada - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon. Puerto Rico. United States (USA) - Alabama; Alaska; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Hawaii; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming. US Virgin Islands. British Virgin Islands."], BBOX[14.92,167.65,86.46,-40.73]], ID["EPSG",4269], REMARK["Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada."]]], ABRIDGEDTRANSFORMATION["ATS77 to NAD83 (1)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","GS7783.GSB"], USAGE[ SCOPE["Geodesy."], AREA["Canada - Nova Scotia onshore."], BBOX[43.41,-66.28,47.08,-59.73]], ID["EPSG",9105]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "ATS77 / New Brunswick Stereographic (ATS77)", "base_crs": { "type": "GeographicCRS", "name": "ATS77", "datum": { "type": "GeodeticReferenceFrame", "name": "Average Terrestrial System 1977", "ellipsoid": { "name": "Average Terrestrial System 1977", "semi_major_axis": 6378135, "inverse_flattening": 298.257 } }, "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": 4122 }, "remarks": "In use from 1979. To be phased out in late 1990's." }, "conversion": { "name": "New Brunswick Stereographic (ATS77)", "method": { "name": "Oblique Stereographic", "id": { "authority": "EPSG", "code": 9809 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 46.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -66.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999912, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 300000, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 800000, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Northing", "abbreviation": "N", "direction": "north", "unit": "metre" }, { "name": "Easting", "abbreviation": "E", "direction": "east", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 2200 } }, "target_crs": { "type": "GeographicCRS", "name": "NAD83", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum 1983", "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": 4269 }, "remarks": "Longitude is POSITIVE EAST. The adjustment included connections to Greenland and Mexico but the system was not adopted there. For applications with an accuracy of better than 1m replaced by NAD83(HARN) in the US and PRVI and by NAD83(CSRS) in Canada." }, "transformation": { "name": "ATS77 to NAD83 (1)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "GS7783.GSB", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 9105 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=sterea +lat_0=46.5 +lon_0=-66.5 +k=0.999912 +x_0=300000 +y_0=800000 +a=6378135 +rf=298.257 +units=m +no_defs +type=crs"> <Layer srs="+proj=sterea +lat_0=46.5 +lon_0=-66.5 +k=0.999912 +x_0=300000 +y_0=800000 +a=6378135 +rf=298.257 +units=m +no_defs +type=crs"> </Layer> </Map>