Method: NADCON5 (3D)
Remarks: Uses NADCON5 method which expects longitudes positive east in range 0-360°; EPSG source and target CRSs have longitudes positive east in range -180° to +180°.
Information source: National Geodetic Survey, www.ngs.noaa.gov
Revision date: 2018-04-16
Unit: metre
Geodetic CRS: NAD83(HARN)
Datum: NAD83 (High Accuracy Reference Network)
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: National Geodetic Survey
Revision date: 2007-04-20
Scope: Engineering survey, topographic mapping.
Remarks: State law defines system in US survey feet. See code 2893 for equivalent non-metric definition. Replaces NAD83 / SPCS for applications with an accuracy of better than 1m. Replaced by NAD83(NSRS2007) / SPCS.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
Center coordinates
-1275876.12 55212.31
Projected bounds:
-4403812.53 -1553452.36
1459929.42 2211847.16
WGS84 bounds:
-124.79 23.82
-66.91 49.38
Definition: OGC Well Known Text
PROJCS["NAD83(HARN) / Maryland", GEOGCS["NAD83(HARN)", DATUM["NAD83_High_Accuracy_Reference_Network", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","6152"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4152"]], PROJECTION["Lambert_Conformal_Conic_2SP"], PARAMETER["latitude_of_origin",37.6666666666667], PARAMETER["central_meridian",-77], PARAMETER["standard_parallel_1",39.45], PARAMETER["standard_parallel_2",38.3], PARAMETER["false_easting",400000], PARAMETER["false_northing",0], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","2804"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83(HARN) / Maryland", 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 Maryland zone (meters)", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",37.6666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",-77, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",39.45, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",38.3, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",400000, LENGTHUNIT["metre",1], ID["EPSG",8826]], PARAMETER["Northing at false origin",0, LENGTHUNIT["metre",1], ID["EPSG",8827]]], 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) - Maryland - counties of Allegany; Anne Arundel; Baltimore; Calvert; Caroline; Carroll; Cecil; Charles; Dorchester; Frederick; Garrett; Harford; Howard; Kent; Montgomery; Prince Georges; Queen Annes; Somerset; St Marys; Talbot; Washington; Wicomico; Worcester."], BBOX[37.97,-79.49,39.73,-74.97]], ID["EPSG",2804]]
Definition: ESRI Well Known Text
PROJCS["NAD_1983_HARN_StatePlane_Maryland_FIPS_1900", 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["Lambert_Conformal_Conic"], PARAMETER["False_Easting",400000.0], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",-77.0], PARAMETER["Standard_Parallel_1",39.45], PARAMETER["Standard_Parallel_2",38.3], PARAMETER["Latitude_Of_Origin",37.6666666666667], UNIT["Meter",1.0]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.5/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83(HARN) / Maryland", "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 Maryland zone (meters)", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": 37.6666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": -77, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 39.45, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 38.3, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 400000, "unit": "metre", "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 0, "unit": "metre", "id": { "authority": "EPSG", "code": 8827 } } ] }, "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) - Maryland - counties of Allegany; Anne Arundel; Baltimore; Calvert; Caroline; Carroll; Cecil; Charles; Dorchester; Frederick; Garrett; Harford; Howard; Kent; Montgomery; Prince Georges; Queen Annes; Somerset; St Marys; Talbot; Washington; Wicomico; Worcester.", "bbox": { "south_latitude": 37.97, "west_longitude": -79.49, "north_latitude": 39.73, "east_longitude": -74.97 }, "id": { "authority": "EPSG", "code": 2804 } }
Definition: GeoServer
2804=PROJCS["NAD83(HARN) / Maryland",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6152"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4152"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",37.6666666666667],PARAMETER["central_meridian",-77],PARAMETER["standard_parallel_1",39.45],PARAMETER["standard_parallel_2",38.3],PARAMETER["false_easting",400000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2804"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=37.6666666666667 +lon_0=-77 +lat_1=39.45 +lat_2=38.3 +x_0=400000 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=37.6666666666667 +lon_0=-77 +lat_1=39.45 +lat_2=38.3 +x_0=400000 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 2804, 'EPSG', 2804, '+proj=lcc +lat_0=37.6666666666667 +lon_0=-77 +lat_1=39.45 +lat_2=38.3 +x_0=400000 +y_0=0 +ellps=GRS80 +units=m +no_defs +type=crs', 'PROJCS["NAD83(HARN) / Maryland",GEOGCS["NAD83(HARN)",DATUM["NAD83_High_Accuracy_Reference_Network",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6152"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4152"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",37.6666666666667],PARAMETER["central_meridian",-77],PARAMETER["standard_parallel_1",39.45],PARAMETER["standard_parallel_2",38.3],PARAMETER["false_easting",400000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2804"]]');