EPSG:2818 NAD83(HARN) / Montana
Système projeté (Lambert Conic Conformal (2SP)) en usage : USA - Montana. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:2818 |
|---|---|
| Nom | NAD83(HARN) / Montana |
| Type | Système projeté — Lambert Conic Conformal (2SP) |
| Zone d'usage |
USA - Montana United States (USA) - Montana - counties of Beaverhead; Big Horn; Blaine; Broadwater; Carbon; Carter; Cascade; Chouteau; Custer; Daniels; Dawson; Deer Lodge; Fallon; Fergus; Flathead; Gallatin; Garfield; Glacier; Golden Valley; Granite; Hill; Jefferson; Judith Basin; Lake; Lewis and Clark; Liberty; Lincoln; Madison; McCone; Meagher; Mineral; Missoula; Musselshell; Park; Petroleum; Phillips; Pondera; Powder River; Powell; Prairie; Ravalli; Richland; Roosevelt; Rosebud; Sanders; Sheridan; Silver Bow; Stillwater; Sweet Grass; Teton; Toole; Treasure; Valley; Wheatland; Wibaux; Yellowstone. |
| Emprise | O -116,07° · S 44,35° · E -104,04° · N 49,01° |
| Pays | États-Unis |
| Datum | NAD83 (High Accuracy Reference Network) |
| Ellipsoïde | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Système géographique de base | EPSG:4152 — NAD83(HARN) |
| Unité | metre (X east, Y north) |
| Transformation vers WGS 84 | NAD83(HARN) to WGS 84 (3) (EPSG:1901) — précision 1 m |
| Usage | Engineering survey, topographic mapping. |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of false origin | 44.25 | degree |
| Longitude of false origin | -109.5 | degree |
| Latitude of 1st standard parallel | 49 | degree |
| Latitude of 2nd standard parallel | 45 | degree |
| Easting at false origin | 600000 | metre |
| Northing at false origin | 0 | metre |
Définition proj4
+proj=lcc +lat_0=44.25 +lon_0=-109.5 +lat_1=49 +lat_2=45 +x_0=600000 +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:2818.
WKT (format ESRI, contenu du .prj)
PROJCS["NAD_1983_HARN_StatePlane_Montana_FIPS_2500",GEOGCS["GCS_North_American_1983_HARN",DATUM["D_North_American_1983_HARN",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",600000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-109.5],PARAMETER["Standard_Parallel_1",49.0],PARAMETER["Standard_Parallel_2",45.0],PARAMETER["Latitude_Of_Origin",44.25],UNIT["Meter",1.0]]Autres systèmes — États-Unis
- EPSG:2809NAD83(HARN) / Michigan South
- EPSG:2810NAD83(HARN) / Minnesota North
- EPSG:2811NAD83(HARN) / Minnesota Central
- EPSG:2812NAD83(HARN) / Minnesota South
- EPSG:2813NAD83(HARN) / Mississippi East
- EPSG:2814NAD83(HARN) / Mississippi West
- EPSG:2815NAD83(HARN) / Missouri East
- EPSG:2816NAD83(HARN) / Missouri Central
- EPSG:2817NAD83(HARN) / Missouri West
- EPSG:2819NAD83(HARN) / Nebraska
- EPSG:2820NAD83(HARN) / Nevada East
- EPSG:2821NAD83(HARN) / Nevada Central
- EPSG:2822NAD83(HARN) / Nevada West
- EPSG:2823NAD83(HARN) / New Hampshire
- EPSG:2824NAD83(HARN) / New Jersey
- EPSG:2825NAD83(HARN) / New Mexico East
- EPSG:2826NAD83(HARN) / New Mexico Central
- EPSG:2827NAD83(HARN) / New Mexico West
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.