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Remarks: 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.
Information source: 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
Revision date: 2000-10-19
Unit: US survey foot
Geodetic CRS: NAD83
Datum: North American Datum 1983
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: National Geodetic Survey http://www.ngs.noaa.gov/INFO/Policy/st_plane.html
Revision date: 2001-11-06
Scope: Engineering survey, topographic mapping.
Remarks: State law defines system in US survey feet. Federal definition is metric - see code 26987. For applications with an accuracy of better than 3 feet, replaced by NAD83(HARN) / SPCS.
Area of use: United States (USA) - Massachusetts offshore - counties of Dukes; Nantucket.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
&stroke=red&width=2&path=48.99,-120.0|60.0,-120.0|60.0,-109.98|48.99,-109.98|48.99,-120.0)
Center coordinates
-7668844.07 7410664.61
Projected bounds:
-9713267.78 5063248.66
-5775169.73 9743188.58
WGS84 bounds:
-120.0 48.99
-109.98 60.0
Definition: OGC Well Known Text
PROJCS["NAD83 / Massachusetts Island (ftUS)", 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["Lambert_Conformal_Conic_2SP"], PARAMETER["latitude_of_origin",41], PARAMETER["central_meridian",-70.5], PARAMETER["standard_parallel_1",41.4833333333333], PARAMETER["standard_parallel_2",41.2833333333333], PARAMETER["false_easting",1640416.667], PARAMETER["false_northing",0], UNIT["US survey foot",0.304800609601219, AUTHORITY["EPSG","9003"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","2250"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD83 / Massachusetts Island (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 Massachusetts Island zone (US survey foot)", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",41, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",-70.5, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",41.4833333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",41.2833333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",1640416.667, 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) - Massachusetts offshore - counties of Dukes; Nantucket."], BBOX[41.19,-70.91,41.51,-69.89]], ID["EPSG",2250]]
Definition: ESRI Well Known Text
PROJCS["NAD_1983_StatePlane_Massachusetts_Island_FIPS_2002_Feet", 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["Lambert_Conformal_Conic"], PARAMETER["False_Easting",1640416.667], PARAMETER["False_Northing",0.0], PARAMETER["Central_Meridian",-70.5], PARAMETER["Standard_Parallel_1",41.4833333333333], PARAMETER["Standard_Parallel_2",41.2833333333333], PARAMETER["Latitude_Of_Origin",41.0], UNIT["US survey foot",0.304800609601219]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD83 / Massachusetts Island (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 Massachusetts Island zone (US survey foot)", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": 41, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": -70.5, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 41.4833333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 41.2833333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 1640416.667, "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 } } ] }, "scope": "Engineering survey, topographic mapping.", "area": "United States (USA) - Massachusetts offshore - counties of Dukes; Nantucket.", "bbox": { "south_latitude": 41.19, "west_longitude": -70.91, "north_latitude": 41.51, "east_longitude": -69.89 }, "id": { "authority": "EPSG", "code": 2250 } }
Definition: GeoServer
2250=PROJCS["NAD83 / Massachusetts Island (ftUS)",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["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",41],PARAMETER["central_meridian",-70.5],PARAMETER["standard_parallel_1",41.4833333333333],PARAMETER["standard_parallel_2",41.2833333333333],PARAMETER["false_easting",1640416.667],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2250"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=41 +lon_0=-70.5 +lat_1=41.4833333333333 +lat_2=41.2833333333333 +x_0=500000.0001016 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=41 +lon_0=-70.5 +lat_1=41.4833333333333 +lat_2=41.2833333333333 +x_0=500000.0001016 +y_0=0 +datum=NAD83 +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 ( 2250, 'EPSG', 2250, '+proj=lcc +lat_0=41 +lon_0=-70.5 +lat_1=41.4833333333333 +lat_2=41.2833333333333 +x_0=500000.0001016 +y_0=0 +datum=NAD83 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD83 / Massachusetts Island (ftUS)",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["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",41],PARAMETER["central_meridian",-70.5],PARAMETER["standard_parallel_1",41.4833333333333],PARAMETER["standard_parallel_2",41.2833333333333],PARAMETER["false_easting",1640416.667],PARAMETER["false_northing",0],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","2250"]]');
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