EPSG:26930 NAD83 / Alabama West
Système projeté (Transverse Mercator) en usage : USA - Alabama - SPCS - W. La définition complète ci-dessous, et la conversion en un clic.
| Code | EPSG:26930 |
|---|---|
| Nom | NAD83 / Alabama West |
| Type | Système projeté — Transverse Mercator |
| Zone d'usage |
USA - Alabama - SPCS - W United States (USA) - Alabama west of approximately 86°37'W - counties Autauga; Baldwin; Bibb; Blount; Butler; Chilton; Choctaw; Clarke; Colbert; Conecuh; Cullman; Dallas; Escambia; Fayette; Franklin; Greene; Hale; Jefferson; Lamar; Lauderdale; Lawrence; Limestone; Lowndes; Marengo; Marion; Mobile; Monroe; Morgan; Perry; Pickens; Shelby; Sumter; Tuscaloosa; Walker; Washington; Wilcox; Winston. |
| Emprise | O -88,48° · S 30,14° · E -86,30° · N 35,02° |
| Pays | États-Unis |
| Datum | North American Datum 1983 |
| Ellipsoïde | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Système géographique de base | EPSG:4269 — NAD83 |
| Unité | metre (X east, Y north) |
| Transformation vers WGS 84 | NAD83 to WGS 84 (1) (EPSG:1188) — précision 4 m |
| Usage | Engineering survey, topographic mapping. |
Paramètres de la projection
| Paramètre | Valeur | Unité |
|---|---|---|
| Latitude of natural origin | 30 | degree |
| Longitude of natural origin | -87.5 | degree |
| Scale factor at natural origin | 0.999933333 | unity |
| False easting | 600000 | metre |
| False northing | 0 | metre |
Définition proj4
+proj=tmerc +lat_0=30 +lon_0=-87.5 +k=0.999933333 +x_0=600000 +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:26930.
WKT (format ESRI, contenu du .prj)
PROJCS["NAD_1983_StatePlane_Alabama_West_FIPS_0102",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["Transverse_Mercator"],PARAMETER["False_Easting",600000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-87.5],PARAMETER["Scale_Factor",0.999933333],PARAMETER["Latitude_Of_Origin",30.0],UNIT["Meter",1.0]]Autres systèmes — États-Unis
- EPSG:26916NAD83 / UTM zone 16N
- EPSG:26917NAD83 / UTM zone 17N
- EPSG:26918NAD83 / UTM zone 18N
- EPSG:26919NAD83 / UTM zone 19N
- EPSG:26929NAD83 / Alabama East
- EPSG:26931NAD83 / Alaska zone 1
- EPSG:26932NAD83 / Alaska zone 2
- EPSG:26933NAD83 / Alaska zone 3
- EPSG:26934NAD83 / Alaska zone 4
- EPSG:26935NAD83 / Alaska zone 5
- EPSG:26936NAD83 / Alaska zone 6
- EPSG:26937NAD83 / Alaska zone 7
- EPSG:26938NAD83 / Alaska zone 8
- EPSG:26939NAD83 / Alaska zone 9
- EPSG:26940NAD83 / Alaska zone 10
- EPSG:26941NAD83 / California zone 1
- EPSG:26942NAD83 / California zone 2
- EPSG:26943NAD83 / California zone 3
Source : registre EPSG v11.022 (IOGP), via la base PROJ. Vérifiez toujours un code sur epsg.org avant un travail contractuel.