EPSG:3457 NAD83(HARN) / Louisiana South (ftUS)
Système projeté (Lambert Conic Conformal (2SP)) en usage : USA - Louisiana - SPCS83 - S. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:3457 |
|---|---|
| Nom | NAD83(HARN) / Louisiana South (ftUS) |
| Type | Système projeté — Lambert Conic Conformal (2SP) |
| Zone d'usage |
USA - Louisiana - SPCS83 - S United States (USA) - Louisiana - counties of Acadia; Allen; Ascension; Assumption; Beauregard; Calcasieu; Cameron; East Baton Rouge; East Feliciana; Evangeline; Iberia; Iberville; Jefferson; Jefferson Davis; Lafayette; LaFourche; Livingston; Orleans; Plaquemines; Pointe Coupee; St Bernard; St Charles; St Helena; St James; St John the Baptist; St Landry; St Martin; St Mary; St Tammany; Tangipahoa; Terrebonne; Vermilion; Washington; West Baton Rouge; West Feliciana. |
| Emprise | O -93,94° · S 28,85° · E -88,75° · N 31,07° |
| 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 | US survey foot (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 | 28.5 | degree |
| Longitude of false origin | -91.33333333333333 | degree |
| Latitude of 1st standard parallel | 30.7 | degree |
| Latitude of 2nd standard parallel | 29.3 | degree |
| Easting at false origin | 3280833.3333 | US survey foot |
| Northing at false origin | 0 | US survey foot |
Définition proj4
+proj=lcc +lat_0=28.5 +lon_0=-91.3333333333333 +lat_1=30.7 +lat_2=29.3 +x_0=999999.99998984 +y_0=0 +ellps=GRS80 +units=us-ft +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:3457.
WKT (format ESRI, contenu du .prj)
PROJCS["NAD_1983_HARN_StatePlane_Louisiana_South_FIPS_1702_Feet",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",3280833.3333],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-91.3333333333333],PARAMETER["Standard_Parallel_1",30.7],PARAMETER["Standard_Parallel_2",29.3],PARAMETER["Latitude_Of_Origin",28.5],UNIT["US survey foot",0.304800609601219]]Autres systèmes — États-Unis
- EPSG:3444NAD83(HARN) / Illinois West (ftUS)
- EPSG:3445NAD83(HARN) / New Hampshire (ftUS)
- EPSG:3446NAD83(HARN) / Rhode Island (ftUS)
- EPSG:3451NAD83 / Louisiana North (ftUS)
- EPSG:3452NAD83 / Louisiana South (ftUS)
- EPSG:3453NAD83 / Louisiana Offshore (ftUS)
- EPSG:3455NAD83 / South Dakota South (ftUS)
- EPSG:3456NAD83(HARN) / Louisiana North (ftUS)
- EPSG:3458NAD83(HARN) / South Dakota North (ftUS)
- EPSG:3459NAD83(HARN) / South Dakota South (ftUS)
- EPSG:3463NAD83 / Maine CS2000 Central
- EPSG:3464NAD83(HARN) / Maine CS2000 Central
- EPSG:3465NAD83(NSRS2007) / Alabama East
- EPSG:3466NAD83(NSRS2007) / Alabama West
- EPSG:3467NAD83(NSRS2007) / Alaska Albers
- EPSG:3468NAD83(NSRS2007) / Alaska zone 1
- EPSG:3469NAD83(NSRS2007) / Alaska zone 2
- EPSG:3470NAD83(NSRS2007) / Alaska zone 3
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.