The gridded difference file AB_CSRS.DAC in STEP 1 will need to be renamed to AB_CSRS.gsb to run in some software suites. Formats identical, but AB file is provincial fit only.
Geodetic Control Section; Land and Forest Svc; Alberta Environment; http://www.gov.ab.ca/env/land/dos/ or email to geoff.banham@gov.ab.ca
2000-10-19
Engineering survey, topographic mapping.
State law defines system in US survey feet. See code 2239 for equivalent non-metric definition. For applications with an accuracy of better than 1m, replaced by NAD83(HARN) / SPCS.
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
-1882930.03 3229549.59
-2526011.43 2492456.97
-1319590.76 3946026.26
-120.0 48.99
-109.98 60.0
Definition: OGC Well Known Text
PROJCS["NAD83 / Georgia East", GEOGCS["NAD83", DATUM["North_American_Datum_1983", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","6269"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4269"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",30], PARAMETER["central_meridian",-82.1666666666667], PARAMETER["scale_factor",0.9999], PARAMETER["false_easting",200000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","26966"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83 / Georgia East", BASEGEOGCRS["NAD83", DATUM["North American Datum 1983", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4269]], CONVERSION["SPCS83 Georgia East zone (meter)", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",30, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-82.1666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.9999, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",200000, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["United States (USA) - Georgia - counties of Appling; Atkinson; Bacon; Baldwin; Brantley; Bryan; Bulloch; Burke; Camden; Candler; Charlton; Chatham; Clinch; Coffee; Columbia; Dodge; Echols; Effingham; Elbert; Emanuel; Evans; Franklin; Glascock; Glynn; Greene; Hancock; Hart; Jeff Davis; Jefferson; Jenkins; Johnson; Lanier; Laurens; Liberty; Lincoln; Long; Madison; McDuffie; McIntosh; Montgomery; Oglethorpe; Pierce; Richmond; Screven; Stephens; Taliaferro; Tattnall; Telfair; Toombs; Treutlen; Ware; Warren; Washington; Wayne; Wheeler; Wilkes; Wilkinson."], BBOX[30.36,-83.47,34.68,-80.77]], ID["EPSG",26966]]
Definition: ESRI Well Known Text
PROJCS["NAD_1983_StatePlane_Georgia_East_FIPS_1001", GEOGCS["GCS_North_American_1983", DATUM["D_North_American_1983", SPHEROID["GRS_1980",6378137.0,298.257222101]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",200000.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",-82.1666666666667], PARAMETER["Scale_Factor",0.9999], PARAMETER["Latitude_Of_Origin",30.0], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83 / Georgia East", "base_crs": { "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 } }, "conversion": { "name": "SPCS83 Georgia East zone (meter)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 30, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -82.1666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.9999, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 200000, "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": "X", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": "metre" } ] }, "scope": "Engineering survey, topographic mapping.", "area": "United States (USA) - Georgia - counties of Appling; Atkinson; Bacon; Baldwin; Brantley; Bryan; Bulloch; Burke; Camden; Candler; Charlton; Chatham; Clinch; Coffee; Columbia; Dodge; Echols; Effingham; Elbert; Emanuel; Evans; Franklin; Glascock; Glynn; Greene; Hancock; Hart; Jeff Davis; Jefferson; Jenkins; Johnson; Lanier; Laurens; Liberty; Lincoln; Long; Madison; McDuffie; McIntosh; Montgomery; Oglethorpe; Pierce; Richmond; Screven; Stephens; Taliaferro; Tattnall; Telfair; Toombs; Treutlen; Ware; Warren; Washington; Wayne; Wheeler; Wilkes; Wilkinson.", "bbox": { "south_latitude": 30.36, "west_longitude": -83.47, "north_latitude": 34.68, "east_longitude": -80.77 }, "id": { "authority": "EPSG", "code": 26966 } }
Definition: GeoServer
26966=PROJCS["NAD83 / Georgia East",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",30],PARAMETER["central_meridian",-82.1666666666667],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",200000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26966"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=30 +lon_0=-82.1666666666667 +k=0.9999 +x_0=200000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=30 +lon_0=-82.1666666666667 +k=0.9999 +x_0=200000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 26966, 'EPSG', 26966, '+proj=tmerc +lat_0=30 +lon_0=-82.1666666666667 +k=0.9999 +x_0=200000 +y_0=0 +datum=NAD83 +units=m +no_defs +type=crs', 'PROJCS["NAD83 / Georgia East",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",30],PARAMETER["central_meridian",-82.1666666666667],PARAMETER["scale_factor",0.9999],PARAMETER["false_easting",200000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26966"]]');