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Method: NTv2
Grid Files: NLCSRSV4A.GSB
Remarks: File NLCSRSV4A.GSB corrects error in file header record previously released as NLCSRSV4.GSB. No change to gridded data.
Information source: Canadian Geodetic Survey, Natural Resources Canada (NrCan).
Revision date: 2023-07-17
Unit: US survey foot
Geodetic CRS: NAD83
Datum: North American Datum 1983
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: U.S. National Geodetic Survey, http://www.ngs.noaa.gov/
Revision date: 2008-06-19
Scope: Engineering survey, topographic mapping.
Remarks: State law defines use of US survey feet. Federal definition is metric - see code 32104. For applications with an accuracy of better than 3ft, replaced by NAD83(HARN) / SPCS.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["NAD83 / Nebraska (ftUS)", 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 Nebraska zone (US survey foot)", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",39.8333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",-100, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",43, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",40, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",1640416.6667, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8826]], PARAMETER["Northing at false origin",0, 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) - Nebraska - counties of Adams; Antelope; Arthur; Banner; Blaine; Boone; Box Butte; Boyd; Brown; Buffalo; Burt; Butler; Cass; Cedar; Chase; Cherry; Cheyenne; Clay; Colfax; Cuming; Custer; Dakota; Dawes; Dawson; Deuel; Dixon; Dodge; Douglas; Dundy; Fillmore; Franklin; Frontier; Furnas; Gage; Garden; Garfield; Gosper; Grant; Greeley; Hall; Hamilton; Harlan; Hayes; Hitchcock; Holt; Hooker; Howard; Jefferson; Johnson; Kearney; Keith; Keya Paha; Kimball; Knox; Lancaster; Lincoln; Logan; Loup; Madison; McPherson; Merrick; Morrill; Nance; Nemaha; Nuckolls; Otoe; Pawnee; Perkins; Phelps; Pierce; Platte; Polk; Red Willow; Richardson; Rock; Saline; Sarpy; Saunders; Scotts Bluff; Seward; Sheridan; Sherman; Sioux; Stanton; Thayer; Thomas; Thurston; Valley; Washington; Wayne; Webster; Wheeler; York."], BBOX[39.99,-104.06,43.01,-95.3]], ID["EPSG",26852]]], TARGETCRS[ GEOGCRS["NAD83(CSRS)v6", DATUM["North American Datum of 1983 (CSRS) version 6", 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["Horizontal component of 3D system."], AREA["Canada - onshore and offshore - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon."], BBOX[38.21,-141.01,86.46,-40.73]], ID["EPSG",8252]]], ABRIDGEDTRANSFORMATION["NAD83 to NAD83(CSRS)v6 (10)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","NLCSRSV4A.GSB"], USAGE[ SCOPE["Spatial referencing."], AREA["Canada - Newfoundland - onshore."], BBOX[46.56,-59.48,51.68,-52.54]], ID["EPSG",9550], REMARK["File NLCSRSV4A.GSB corrects error in file header record previously released as NLCSRSV4.GSB. No change to gridded data."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "NAD83 / Nebraska (ftUS)", "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 Nebraska zone (US survey foot)", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": 39.8333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": -100, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 43, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 40, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 1640416.6667, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 0, "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 } } ] }, "id": { "authority": "EPSG", "code": 26852 } }, "target_crs": { "type": "GeographicCRS", "name": "NAD83(CSRS)v6", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum of 1983 (CSRS) version 6", "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": 8252 } }, "transformation": { "name": "NAD83 to NAD83(CSRS)v6 (10)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "NLCSRSV4A.GSB", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 9550 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=39.8333333333333 +lon_0=-100 +lat_1=43 +lat_2=40 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=39.8333333333333 +lon_0=-100 +lat_1=43 +lat_2=40 +x_0=500000.00001016 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +type=crs"> </Layer> </Map>
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