Geocentric translations (geog2D domain)
For many purposes NAD83(2011) can be considered to be coincident with WGS 84. This approximation ignores the ~2.2m offset of NAD83 from the geocentre, the low accuracy of the WGS 84 ensemble and the application of tectonic plate motion to WGS 84 data.
IOGP
2021-09-08
US survey foot
NAD83 (National Spatial Reference System 2011)
EPSG
U.S. National Geodetic Survey, http://www.ngs.noaa.gov/
2016-07-13
Engineering survey, topographic mapping.
State law defines use of US survey feet. Federal definition is metric - see code 6594. NAD83(NSRS2007) / Virginia South (ftUS) (CRS code 3688).
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
-915547.67 9713821.97
-21956370.91 -4686430.85
17004224.73 26649815.14
167.65 14.92
-63.88 74.71
Definition: OGC Well Known Text
PROJCS["NAD83(2011) / Virginia South (ftUS)", GEOGCS["NAD83(2011)", DATUM["NAD83_National_Spatial_Reference_System_2011", SPHEROID["GRS 1980",6378137,298.257222101], TOWGS84[0,0,0,0,0,0,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","6318"]], PROJECTION["Lambert_Conformal_Conic_2SP"], PARAMETER["latitude_of_origin",36.3333333333333], PARAMETER["central_meridian",-78.5], PARAMETER["standard_parallel_1",37.9666666666667], PARAMETER["standard_parallel_2",36.7666666666667], PARAMETER["false_easting",11482916.667], PARAMETER["false_northing",3280833.333], UNIT["US survey foot",0.304800609601219], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","6595"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83(2011) / Virginia South (ftUS)", BASEGEOGCRS["NAD83(2011)", DATUM["NAD83 (National Spatial Reference System 2011)", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",6318]], CONVERSION["SPCS83 Virginia South zone (US survey foot)", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",36.3333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",-78.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",37.9666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",36.7666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",11482916.667, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8826]], PARAMETER["Northing at false origin",3280833.333, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8827]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["US survey foot",0.304800609601219]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["US survey foot",0.304800609601219]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["United States (USA) - Virginia - counties of Accomack; Albemarle; Alleghany; Amelia; Amherst; Appomattox; Bedford; Bland; Botetourt; Bristol; Brunswick; Buchanan; Buckingham; Campbell; Carroll; Charles City; Charlotte; Chesapeake; Chesterfield; Colonial Heights; Craig; Cumberland; Dickenson; Dinwiddie; Essex; Floyd; Fluvanna; Franklin; Giles; Gloucester; Goochland; Grayson; Greensville; Halifax; Hampton; Hanover; Henrico; Henry; Isle of Wight; James City; King and Queen; King William; Lancaster; Lee; Louisa; Lunenburg; Lynchburg; Mathews; Mecklenburg; Middlesex; Montgomery; Nelson; New Kent; Newport News; Norfolk; Northampton; Northumberland; Norton; Nottoway; Patrick; Petersburg; Pittsylvania; Portsmouth; Powhatan; Prince Edward; Prince George; Pulaski; Richmond; Roanoke; Rockbridge; Russell; Scott; Smyth; Southampton; Suffolk; Surry; Sussex; Tazewell; Washington; Wise; Wythe; York."], BBOX[36.54,-83.68,38.28,-75.31]], ID["EPSG",6595]]
Definition: ESRI Well Known Text
PROJCS["NAD_1983_2011_StatePlane_Virginia_South_FIPS_4502_Ft_US", GEOGCS["GCS_NAD_1983_2011", DATUM["D_NAD_1983_2011", SPHEROID["GRS_1980",6378137.0,298.257222101]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Lambert_Conformal_Conic"], PARAMETER["False_Easting",11482916.667], PARAMETER["False_Northing",3280833.333], PARAMETER["Central_Meridian",-78.5], PARAMETER["Standard_Parallel_1",37.9666666666667], PARAMETER["Standard_Parallel_2",36.7666666666667], PARAMETER["Latitude_Of_Origin",36.3333333333333], UNIT["US survey foot",0.304800609601219]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:6595","+proj=lcc +lat_0=36.3333333333333 +lon_0=-78.5 +lat_1=37.9666666666667 +lat_2=36.7666666666667 +x_0=3500000.0001016 +y_0=999999.999898399 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83(2011) / Virginia South (ftUS)", "base_crs": { "name": "NAD83(2011)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (National Spatial Reference System 2011)", "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": 6318 } }, "conversion": { "name": "SPCS83 Virginia South zone (US survey foot)", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": 36.3333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": -78.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 37.9666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 36.7666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 11482916.667, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 3280833.333, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8827 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "scope": "Engineering survey, topographic mapping.", "area": "United States (USA) - Virginia - counties of Accomack; Albemarle; Alleghany; Amelia; Amherst; Appomattox; Bedford; Bland; Botetourt; Bristol; Brunswick; Buchanan; Buckingham; Campbell; Carroll; Charles City; Charlotte; Chesapeake; Chesterfield; Colonial Heights; Craig; Cumberland; Dickenson; Dinwiddie; Essex; Floyd; Fluvanna; Franklin; Giles; Gloucester; Goochland; Grayson; Greensville; Halifax; Hampton; Hanover; Henrico; Henry; Isle of Wight; James City; King and Queen; King William; Lancaster; Lee; Louisa; Lunenburg; Lynchburg; Mathews; Mecklenburg; Middlesex; Montgomery; Nelson; New Kent; Newport News; Norfolk; Northampton; Northumberland; Norton; Nottoway; Patrick; Petersburg; Pittsylvania; Portsmouth; Powhatan; Prince Edward; Prince George; Pulaski; Richmond; Roanoke; Rockbridge; Russell; Scott; Smyth; Southampton; Suffolk; Surry; Sussex; Tazewell; Washington; Wise; Wythe; York.", "bbox": { "south_latitude": 36.54, "west_longitude": -83.68, "north_latitude": 38.28, "east_longitude": -75.31 }, "id": { "authority": "EPSG", "code": 6595 } }
Definition: GeoServer
6595=PROJCS["NAD83(2011) / Virginia South (ftUS)",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",36.3333333333333],PARAMETER["central_meridian",-78.5],PARAMETER["standard_parallel_1",37.9666666666667],PARAMETER["standard_parallel_2",36.7666666666667],PARAMETER["false_easting",11482916.667],PARAMETER["false_northing",3280833.333],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6595"]]
Definition: MapServer - MAPfile
PROJECTION "proj=lcc" "lat_0=36.3333333333333" "lon_0=-78.5" "lat_1=37.9666666666667" "lat_2=36.7666666666667" "x_0=3500000.0001016" "y_0=999999.999898399" "ellps=GRS80" "towgs84=0,0,0,0,0,0,0" "units=us-ft" "no_defs" "type=crs" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=36.3333333333333 +lon_0=-78.5 +lat_1=37.9666666666667 +lat_2=36.7666666666667 +x_0=3500000.0001016 +y_0=999999.999898399 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=36.3333333333333 +lon_0=-78.5 +lat_1=37.9666666666667 +lat_2=36.7666666666667 +x_0=3500000.0001016 +y_0=999999.999898399 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 6595, 'EPSG', 6595, '+proj=lcc +lat_0=36.3333333333333 +lon_0=-78.5 +lat_1=37.9666666666667 +lat_2=36.7666666666667 +x_0=3500000.0001016 +y_0=999999.999898399 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83(2011) / Virginia South (ftUS)",GEOGCS["NAD83(2011)",DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[0,0,0,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","6318"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",36.3333333333333],PARAMETER["central_meridian",-78.5],PARAMETER["standard_parallel_1",37.9666666666667],PARAMETER["standard_parallel_2",36.7666666666667],PARAMETER["false_easting",11482916.667],PARAMETER["false_northing",3280833.333],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","6595"]]');