Coordinate Frame rotation (geog2D domain)
Approximation derived from tfm code 6864 ignoring time-dependent parameters and assuming ITRF96(1997.0) and WGS 84, plus NAD83(CORS96) and NAD83(HARN), can be considered the same within the accuracy of the tfm. In USA only replaces tfm code 1900.
http://www.ngs.noaa.gov/CORS/Derivation.html
2021-09-08
US survey foot
NAD83 (High Accuracy Reference Network)
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 2803. Replaces NAD83 / SPCS for applications with an accuracy of better than 3ft. Replaced by NAD83(NSRS2007) / SPCS.
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
-4622982.54 -1102815.38
-17070999.35 -6703706.92
4036804.44 7590175.23
-124.79 24.41
-66.91 49.38
Definition: OGC Well Known Text
PROJCS["NAD83(HARN) / Maine West (ftUS)", GEOGCS["NAD83(HARN)", DATUM["NAD83_High_Accuracy_Reference_Network", SPHEROID["GRS 1980",6378137,298.257222101], TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4152"]], PROJECTION["Transverse_Mercator"], PARAMETER["latitude_of_origin",42.8333333333333], PARAMETER["central_meridian",-70.1666666666667], PARAMETER["scale_factor",0.999966667], PARAMETER["false_easting",2952750], PARAMETER["false_northing",0], UNIT["US survey foot",0.304800609601219], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","26856"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83(HARN) / Maine West (ftUS)", BASEGEOGCRS["NAD83(HARN)", DATUM["NAD83 (High Accuracy Reference Network)", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4152]], CONVERSION["SPCS83 Maine West zone (US survey foot)", METHOD["Transverse Mercator", ID["EPSG",9807]], PARAMETER["Latitude of natural origin",42.8333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8801]], PARAMETER["Longitude of natural origin",-70.1666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8802]], PARAMETER["Scale factor at natural origin",0.999966667, SCALEUNIT["unity",1], ID["EPSG",8805]], PARAMETER["False easting",2952750, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8806]], PARAMETER["False northing",0, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8807]]], 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) - Maine - counties of Androscoggin; Cumberland; Franklin; Kennebec; Lincoln; Oxford; Sagadahoc; Somerset; York."], BBOX[43.04,-71.09,46.58,-69.26]], ID["EPSG",26856]]
Definition: ESRI Well Known Text
PROJCS["NAD_1983_HARN_StatePlane_Maine_West_FIPS_1802_Feet", GEOGCS["GCS_North_American_1983_HARN", DATUM["D_North_American_1983_HARN", SPHEROID["GRS_1980",6378137.0,298.257222101]], PRIMEM["Greenwich",0.0], UNIT["Degree",0.0174532925199433]], PROJECTION["Transverse_Mercator"], PARAMETER["False_Easting",2952750.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",-70.1666666666667], PARAMETER["Scale_Factor",0.999966667], PARAMETER["Latitude_Of_Origin",42.8333333333333], UNIT["US survey foot",0.304800609601219]]
Definition: JavaScript (Proj4js)
proj4.defs("EPSG:26856","+proj=tmerc +lat_0=42.8333333333333 +lon_0=-70.1666666666667 +k=0.999966667 +x_0=900000 +y_0=0 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs");
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83(HARN) / Maine West (ftUS)", "base_crs": { "name": "NAD83(HARN)", "datum": { "type": "GeodeticReferenceFrame", "name": "NAD83 (High Accuracy Reference Network)", "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": 4152 } }, "conversion": { "name": "SPCS83 Maine West zone (US survey foot)", "method": { "name": "Transverse Mercator", "id": { "authority": "EPSG", "code": 9807 } }, "parameters": [ { "name": "Latitude of natural origin", "value": 42.8333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8801 } }, { "name": "Longitude of natural origin", "value": -70.1666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8802 } }, { "name": "Scale factor at natural origin", "value": 0.999966667, "unit": "unity", "id": { "authority": "EPSG", "code": 8805 } }, { "name": "False easting", "value": 2952750, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": 0, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8807 } } ] }, "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) - Maine - counties of Androscoggin; Cumberland; Franklin; Kennebec; Lincoln; Oxford; Sagadahoc; Somerset; York.", "bbox": { "south_latitude": 43.04, "west_longitude": -71.09, "north_latitude": 46.58, "east_longitude": -69.26 }, "id": { "authority": "EPSG", "code": 26856 } }
Definition: GeoServer
26856=PROJCS["NAD83(HARN) / Maine West (ftUS)",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4152"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",42.8333333333333],PARAMETER["central_meridian",-70.1666666666667],PARAMETER["scale_factor",0.999966667],PARAMETER["false_easting",2952750],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26856"]]
Definition: MapServer - MAPfile
PROJECTION "proj=tmerc" "lat_0=42.8333333333333" "lon_0=-70.1666666666667" "k=0.999966667" "x_0=900000" "y_0=0" "ellps=GRS80" "towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0" "units=us-ft" "no_defs" "type=crs" END
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=tmerc +lat_0=42.8333333333333 +lon_0=-70.1666666666667 +k=0.999966667 +x_0=900000 +y_0=0 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=tmerc +lat_0=42.8333333333333 +lon_0=-70.1666666666667 +k=0.999966667 +x_0=900000 +y_0=0 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +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 ( 26856, 'EPSG', 26856, '+proj=tmerc +lat_0=42.8333333333333 +lon_0=-70.1666666666667 +k=0.999966667 +x_0=900000 +y_0=0 +ellps=GRS80 +towgs84=-0.991,1.9072,0.5129,-1.25033e-07,-4.6785e-08,-5.6529e-08,0 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83(HARN) / Maine West (ftUS)",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137,298.257222101],TOWGS84[-0.991,1.9072,0.5129,-1.25033E-07,-4.6785E-08,-5.6529E-08,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4152"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",42.8333333333333],PARAMETER["central_meridian",-70.1666666666667],PARAMETER["scale_factor",0.999966667],PARAMETER["false_easting",2952750],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26856"]]');