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Method: NTv2
Grid Files: AB_CSRS.DAC
Remarks: This gridded difference file AB_CSRS.DAC may need to be renamed to AB_CSRS.gsb or AB_CSRSV4.gsb to run in some software. Formats identical, but AB file is provincial fit only. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1702.
Information source: Geodetic Control Section; Land and Forest Svc; Alberta Environment; http://www3.gov.ab.ca/env/land/dos/
Revision date: 2023-07-17
Unit: metre
Geodetic CRS: NAD83
Datum: North American Datum 1983
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Michigan Department of Natural Resources, http://www.michigan.gov/documents/DNR_Map_Proj_and_MI_Georef_Info_20889_7.pdf
Revision date: 2004-06-16
Scope: State-wide spatial data management.
Remarks: For applications with an accuracy of better than 1m, replaced by NAD83(HARN) / Michigan Oblique Mercator.
Area of use: United States (USA) - Michigan.
Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.
&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
-1334817.57 1930675.89
Projected bounds:
-1929707.37 1221398.98
-819737.38 2622233.21
WGS84 bounds:
-120.0 48.99
-109.98 60.0
Definition: OGC Well Known Text 2 (2019)
BOUNDCRS[ SOURCECRS[ PROJCRS["NAD83 / Michigan Oblique Mercator", 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["Michigan Oblique Mercator (meter)", METHOD["Hotine Oblique Mercator (variant A)", ID["EPSG",9812]], PARAMETER["Latitude of projection centre",45.3091666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8811]], PARAMETER["Longitude of projection centre",-86, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8812]], PARAMETER["Azimuth of initial line",337.25556, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8813]], PARAMETER["Angle from Rectified to Skew Grid",337.25556, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8814]], PARAMETER["Scale factor on initial line",0.9996, SCALEUNIT["unity",1], ID["EPSG",8815]], PARAMETER["False easting",2546731.496, LENGTHUNIT["metre",1], ID["EPSG",8806]], PARAMETER["False northing",-4354009.816, LENGTHUNIT["metre",1], ID["EPSG",8807]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["metre",1]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["metre",1]], USAGE[ SCOPE["State-wide spatial data management."], AREA["United States (USA) - Michigan."], BBOX[41.69,-90.42,48.32,-82.13]], ID["EPSG",3078]]], TARGETCRS[ GEOGCRS["NAD83(CSRS)v4", DATUM["North American Datum of 1983 (CSRS) version 4", 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",8246]]], ABRIDGEDTRANSFORMATION["NAD83 to NAD83(CSRS)v4 (3)", METHOD["NTv2", ID["EPSG",9615]], PARAMETERFILE["Latitude and longitude difference file","AB_CSRS.DAC"], USAGE[ SCOPE["Transformation of coordinates at 1m to 2m level of accuracy."], AREA["Canada - Alberta."], BBOX[48.99,-120,60,-109.98]], ID["EPSG",9244], REMARK["This gridded difference file AB_CSRS.DAC may need to be renamed to AB_CSRS.gsb or AB_CSRSV4.gsb to run in some software. Formats identical, but AB file is provincial fit only. Can be taken as an approximate transformation NAD83 to WGS 84 - see code 1702."]]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "BoundCRS", "source_crs": { "type": "ProjectedCRS", "name": "NAD83 / Michigan Oblique Mercator", "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": "Michigan Oblique Mercator (meter)", "method": { "name": "Hotine Oblique Mercator (variant A)", "id": { "authority": "EPSG", "code": 9812 } }, "parameters": [ { "name": "Latitude of projection centre", "value": 45.3091666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8811 } }, { "name": "Longitude of projection centre", "value": -86, "unit": "degree", "id": { "authority": "EPSG", "code": 8812 } }, { "name": "Azimuth of initial line", "value": 337.25556, "unit": "degree", "id": { "authority": "EPSG", "code": 8813 } }, { "name": "Angle from Rectified to Skew Grid", "value": 337.25556, "unit": "degree", "id": { "authority": "EPSG", "code": 8814 } }, { "name": "Scale factor on initial line", "value": 0.9996, "unit": "unity", "id": { "authority": "EPSG", "code": 8815 } }, { "name": "False easting", "value": 2546731.496, "unit": "metre", "id": { "authority": "EPSG", "code": 8806 } }, { "name": "False northing", "value": -4354009.816, "unit": "metre", "id": { "authority": "EPSG", "code": 8807 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": "metre" }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 3078 } }, "target_crs": { "type": "GeographicCRS", "name": "NAD83(CSRS)v4", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum of 1983 (CSRS) version 4", "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": 8246 } }, "transformation": { "name": "NAD83 to NAD83(CSRS)v4 (3)", "method": { "name": "NTv2", "id": { "authority": "EPSG", "code": 9615 } }, "parameters": [ { "name": "Latitude and longitude difference file", "value": "AB_CSRS.DAC", "id": { "authority": "EPSG", "code": 8656 } } ], "id": { "authority": "EPSG", "code": 9244 } } }
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=omerc +no_uoff +lat_0=45.3091666666667 +lonc=-86 +alpha=337.25556 +gamma=337.25556 +k=0.9996 +x_0=2546731.496 +y_0=-4354009.816 +datum=NAD83 +units=m +no_defs +type=crs"> <Layer srs="+proj=omerc +no_uoff +lat_0=45.3091666666667 +lonc=-86 +alpha=337.25556 +gamma=337.25556 +k=0.9996 +x_0=2546731.496 +y_0=-4354009.816 +datum=NAD83 +units=m +no_defs +type=crs"> </Layer> </Map>
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