EPSG:3581 NAD83(CSRS) / NWT Lambert
Système projeté (Lambert Conic Conformal (2SP)) en usage : Canada - NWT. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:3581 |
|---|---|
| Nom | NAD83(CSRS) / NWT Lambert |
| Type | Système projeté — Lambert Conic Conformal (2SP) |
| Zone d'usage |
Canada - NWT Canada - Northwest Territories onshore. |
| Emprise | O -136,46° · S 59,98° · E -102,00° · N 78,81° |
| Pays | Canada |
| Datum | NAD83 Canadian Spatial Reference System |
| Ellipsoïde | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Système géographique de base | EPSG:4617 — NAD83(CSRS) |
| Unité | metre (E east, N north) |
| Transformation vers WGS 84 | NAD83(CSRS) to WGS 84 (2) (EPSG:1946) — précision 1 m |
| Usage | Territory-wide spatial data management. |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of false origin | 0 | degree |
| Longitude of false origin | -112 | degree |
| Latitude of 1st standard parallel | 62 | degree |
| Latitude of 2nd standard parallel | 70 | degree |
| Easting at false origin | 0 | metre |
| Northing at false origin | 0 | metre |
Définition proj4
+proj=lcc +lat_0=0 +lon_0=-112 +lat_1=62 +lat_2=70 +x_0=0 +y_0=0 +ellps=GRS80 +units=m +towgs84=-0.991,1.9072,0.5129,0.02579,0.00965,0.01166,0 +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:3581.
WKT (format ESRI, contenu du .prj)
PROJCS["NAD_1983_CSRS_Northwest_Territories_Lambert",GEOGCS["GCS_North_American_1983_CSRS",DATUM["D_North_American_1983_CSRS",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",-112.0],PARAMETER["Standard_Parallel_1",62.0],PARAMETER["Standard_Parallel_2",70.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Autres systèmes — Canada
- EPSG:3400NAD83 / Alberta 10-TM (Forest)
- EPSG:3401NAD83 / Alberta 10-TM (Resource)
- EPSG:3402NAD83(CSRS) / Alberta 10-TM (Forest)
- EPSG:3403NAD83(CSRS) / Alberta 10-TM (Resource)
- EPSG:3578NAD83 / Yukon Albers
- EPSG:3579NAD83(CSRS) / Yukon Albers
- EPSG:3580NAD83 / NWT Lambert
- 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
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.