EPSG:3978 NAD83 / Canada Atlas Lambert
Système projeté (Lambert Conic Conformal (2SP)) en usage : Canada. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:3978 |
|---|---|
| Nom | NAD83 / Canada Atlas Lambert |
| Type | Système projeté — Lambert Conic Conformal (2SP) |
| Zone d'usage |
Canada 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. |
| Emprise | O -141,01° · S 38,21° · E -40,73° · N 86,46° |
| Pays | Canada |
| Datum | North American Datum 1983 |
| Ellipsoïde | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Système géographique de base | EPSG:4269 — NAD83 |
| Unité | metre (E east, N north) |
| Transformation vers WGS 84 | NAD83 to WGS 84 (1) (EPSG:1188) — précision 4 m |
| Usage | Transformation of coordinates at 5m level of accuracy. |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of false origin | 49 | degree |
| Longitude of false origin | -95 | degree |
| Latitude of 1st standard parallel | 49 | degree |
| Latitude of 2nd standard parallel | 77 | degree |
| Easting at false origin | 0 | metre |
| Northing at false origin | 0 | metre |
Définition proj4
+proj=lcc +lat_0=49 +lon_0=-95 +lat_1=49 +lat_2=77 +x_0=0 +y_0=0 +a=6378137 +rf=298.257222101 +units=m +towgs84=0,0,0 +no_defsÀ coller dans QGIS, proj4js, PostGIS (spatial_ref_sys) ou GDAL. +towgs84 porte la transformation EPSG vers WGS 84 ; le code officiel reste EPSG:3978.
WKT (format ESRI, contenu du .prj)
PROJCS["NAD_1983_Canada_Atlas_Lambert",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",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-95.0],PARAMETER["Standard_Parallel_1",49.0],PARAMETER["Standard_Parallel_2",77.0],PARAMETER["Latitude_Of_Origin",49.0],UNIT["Meter",1.0]]Autres systèmes — Canada
- EPSG:3761NAD83(CSRS) / UTM zone 22N
- EPSG:3771NAD27 / Alberta 3TM ref merid 111 W
- EPSG:3772NAD27 / Alberta 3TM ref merid 114 W
- EPSG:3773NAD27 / Alberta 3TM ref merid 117 W
- EPSG:3775NAD83 / Alberta 3TM ref merid 111 W
- EPSG:3776NAD83 / Alberta 3TM ref merid 114 W
- EPSG:3777NAD83 / Alberta 3TM ref merid 117 W
- EPSG:3779NAD83(CSRS) / Alberta 3TM ref merid 111 W
- EPSG:3780NAD83(CSRS) / Alberta 3TM ref merid 114 W
- EPSG:3781NAD83(CSRS) / Alberta 3TM ref merid 117 W
- EPSG:3797NAD27 / MTQ Lambert
- EPSG:3798NAD83 / MTQ Lambert
- EPSG:3799NAD83(CSRS) / MTQ Lambert
- EPSG:3800NAD27 / Alberta 3TM ref merid 120 W
- EPSG:3801NAD83 / Alberta 3TM ref merid 120 W
- EPSG:3802NAD83(CSRS) / Alberta 3TM ref merid 120 W
- EPSG:3979NAD83(CSRS) / Canada Atlas Lambert
- EPSG:4122ATS77
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.