EPSG:2964 NAD27 / Alaska Albers
Système projeté (Albers Equal Area) en usage : USA - Alaska. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:2964 |
|---|---|
| Nom | NAD27 / Alaska Albers |
| Type | Système projeté — Albers Equal Area |
| Zone d'usage |
USA - Alaska United States (USA) - Alaska. |
| Emprise | O 172,42° · S 51,30° · E -129,99° · N 71,40° |
| Pays | États-Unis |
| Datum | North American Datum 1927 |
| Ellipsoïde | Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214 |
| Système géographique de base | EPSG:4267 — NAD27 |
| Unité | US survey foot (X east, Y north) |
| Transformation vers WGS 84 | NAD27 to WGS 84 (3) (EPSG:1172) — précision 20 m |
| Usage | Topographic mapping (small scale). |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of false origin | 50 | degree |
| Longitude of false origin | -154 | degree |
| Latitude of 1st standard parallel | 55 | degree |
| Latitude of 2nd standard parallel | 65 | degree |
| Easting at false origin | 0 | US survey foot |
| Northing at false origin | 0 | US survey foot |
Définition proj4
+proj=aea +lat_0=50 +lon_0=-154 +lat_1=55 +lat_2=65 +x_0=0 +y_0=0 +a=6378206.4000000004 +rf=294.9786982139 +units=us-ft +towgs84=-10,158,187 +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:2964.
WKT (format ESRI, contenu du .prj)
PROJCS["NAD_1927_Alaska_Albers_Feet",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-154.0],PARAMETER["Standard_Parallel_1",55.0],PARAMETER["Standard_Parallel_2",65.0],PARAMETER["Latitude_Of_Origin",50.0],UNIT["US survey foot",0.304800609601219]]Autres systèmes — États-Unis
- EPSG:2921NAD83(HARN) / Utah North (ft)
- EPSG:2922NAD83(HARN) / Utah Central (ft)
- EPSG:2923NAD83(HARN) / Utah South (ft)
- EPSG:2924NAD83(HARN) / Virginia North (ftUS)
- EPSG:2925NAD83(HARN) / Virginia South (ftUS)
- EPSG:2926NAD83(HARN) / Washington North (ftUS)
- EPSG:2927NAD83(HARN) / Washington South (ftUS)
- EPSG:2928NAD83(HARN) / Wisconsin North (ftUS)
- EPSG:2929NAD83(HARN) / Wisconsin Central (ftUS)
- EPSG:2930NAD83(HARN) / Wisconsin South (ftUS)
- EPSG:2965NAD83 / Indiana East (ftUS)
- EPSG:2966NAD83 / Indiana West (ftUS)
- EPSG:2967NAD83(HARN) / Indiana East (ftUS)
- EPSG:2968NAD83(HARN) / Indiana West (ftUS)
- EPSG:2991NAD83 / Oregon LCC (m)
- EPSG:2992NAD83 / Oregon GIC Lambert (ft)
- EPSG:2993NAD83(HARN) / Oregon LCC (m)
- EPSG:2994NAD83(HARN) / Oregon GIC Lambert (ft)
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.