EPSG:22391 Carthage / Nord Tunisie
Projected system (Lambert Conic Conformal (1SP)) in use: Tunisia - north of 34°39'N. The full definition below, and conversion in one click.
| Code | EPSG:22391 |
|---|---|
| Name | Carthage / Nord Tunisie |
| Type | Projected system — Lambert Conic Conformal (1SP) |
| Area of use |
Tunisia - north of 34°39'N Tunisia - onshore north of 38.5 grads North (34°39'N). |
| Bounds | W 8,18° · S 34,65° · E 11,37° · N 37,40° |
| Countries | Tunisia |
| Datum | Carthage |
| Ellipsoid | Clarke 1880 (IGN) a = 6378249.2 m · 1/f = 293.466021294 |
| Base geographic system | EPSG:4223 — Carthage |
| Unit | metre (X east, Y north) |
| Transformation to WGS 84 | Carthage to WGS 84 (1) (EPSG:1130) — accuracy 14 m |
| Scope | Engineering survey, topographic mapping. |
| In Carte | Built-in grid (code TN), with the reference cities of the guide. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 40 | grad |
| Longitude of natural origin | 11 | grad |
| Scale factor at natural origin | 0.999625544 | unity |
| False easting | 500000 | metre |
| False northing | 300000 | metre |
proj4 definition
+proj=lcc +lat_1=36 +lat_0=36 +lon_0=9.9 +k_0=0.999625544 +x_0=500000 +y_0=300000 +a=6378249.2 +b=6356515 +towgs84=-263,6,431,0,0,0,0 +units=m +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:22391.
WKT (ESRI format, the .prj content)
PROJCS["Nord_Tunisie",GEOGCS["GCS_Carthage",DATUM["D_Carthage",SPHEROID["Clarke_1880_IGN",6378249.2,293.466021293627]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",300000.0],PARAMETER["Central_Meridian",9.9],PARAMETER["Standard_Parallel_1",36.0],PARAMETER["Scale_Factor",0.999625544],PARAMETER["Latitude_Of_Origin",36.0],UNIT["Meter",1.0]]Other systems — Tunisia
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.