Geodetic CRS: NAD83(CSRS)v8
Datum: North American Datum of 1983 (CSRS) version 8
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: EPSG
Information source: Canadian Geodetic Survey, Natural Resources Canada.
Revision date: 2025-02-19
Scope: Change of coordinate epoch in 3-dimensions (φλh).
Remarks: Replaces Canada velocity grid v7 (code 9483). Although the interpolation CRS is given as NAD83(CSRS)v8 (also known as NAD83(CSRS) 2010), any version of NAD83(CSRS) may be used for grid interpolation without significant error.
Method: Point motion by grid (NEU domain) (NTv2_Vel)
Description: (0,)
Definition: OGC Well Known Text 2 (2019)
POINTMOTIONOPERATION["Canada velocity grid v8", VERSION["NRC-Can cvg8.0"], SOURCECRS[ GEOGCRS["NAD83(CSRS)v8", DATUM["North American Datum of 1983 (CSRS) version 8", ELLIPSOID["GRS 1980",6378137,298.257222101, LENGTHUNIT["metre",1]], ANCHOREPOCH[2010]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], CS[ellipsoidal,3], AXIS["geodetic latitude (Lat)",north, ORDER[1], ANGLEUNIT["degree",0.0174532925199433]], AXIS["geodetic longitude (Lon)",east, ORDER[2], ANGLEUNIT["degree",0.0174532925199433]], AXIS["ellipsoidal height (h)",up, ORDER[3], LENGTHUNIT["metre",1]], ID["EPSG",10413]]], METHOD["Point motion by grid (NEU domain) (NTv2_Vel)", ID["EPSG",1141]], PARAMETERFILE["Point motion velocity grid file","NAD83v80VG.gvb"], OPERATIONACCURACY[0.01], USAGE[ SCOPE["Change of coordinate epoch in 3-dimensions (φλh)."], AREA["Canada - onshore - Alberta; British Columbia (BC); Manitoba; New Brunswick (NB); Newfoundland and Labrador; Northwest Territories (NWT); Nova Scotia (NS); Nunavut; Ontario; Prince Edward Island (PEI); Quebec; Saskatchewan; Yukon."], BBOX[41.67,-141.01,83.17,-52.54]], ID["EPSG",10707], REMARK["Replaces Canada velocity grid v7 (code 9483). Although the interpolation CRS is given as NAD83(CSRS)v8 (also known as NAD83(CSRS) 2010), any version of NAD83(CSRS) may be used for grid interpolation without significant error."]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "PointMotionOperation", "name": "Canada velocity grid v8", "source_crs": { "type": "GeographicCRS", "name": "NAD83(CSRS)v8", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum of 1983 (CSRS) version 8", "anchor_epoch": 2010, "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" }, { "name": "Ellipsoidal height", "abbreviation": "h", "direction": "up", "unit": "metre" } ] }, "id": { "authority": "EPSG", "code": 10413 } }, "method": { "name": "Point motion by grid (NEU domain) (NTv2_Vel)", "id": { "authority": "EPSG", "code": 1141 } }, "parameters": [ { "name": "Point motion velocity grid file", "value": "NAD83v80VG.gvb", "id": { "authority": "EPSG", "code": 1050 } } ], "accuracy": "0.01", "scope": "Change of coordinate epoch in 3-dimensions (φλh).", "area": "Canada - onshore - Alberta; British Columbia (BC); Manitoba; New Brunswick (NB); Newfoundland and Labrador; Northwest Territories (NWT); Nova Scotia (NS); Nunavut; Ontario; Prince Edward Island (PEI); Quebec; Saskatchewan; Yukon.", "bbox": { "south_latitude": 41.67, "west_longitude": -141.01, "north_latitude": 83.17, "east_longitude": -52.54 }, "id": { "authority": "EPSG", "code": 10707 }, "remarks": "Replaces Canada velocity grid v7 (code 9483). Although the interpolation CRS is given as NAD83(CSRS)v8 (also known as NAD83(CSRS) 2010), any version of NAD83(CSRS) may be used for grid interpolation without significant error." }