EPSG:4816 Carthage (Paris)
Geographic system in latitude and longitude, in use: Tunisia - onshore. Datum, ellipsoid and transformation to WGS 84 below.
EPSG publishes no simple transformation to WGS 84 for this datum: conversion works on the ellipsoid alone and can be off by tens of metres.
| Code | EPSG:4816 |
|---|---|
| Name | Carthage (Paris) |
| Type | Geographic system |
| Area of use | Tunisia - onshore |
| Bounds | W 7,49° · S 30,23° · E 11,59° · N 37,40° |
| Countries | Tunisia |
| Datum | Carthage (Paris) |
| Ellipsoid | Clarke 1880 (IGN) a = 6378249.2 m · 1/f = 293.466021294 |
| Prime meridian | Paris 2.5969213 grad |
| Unit | grad (Lat north, Lon east) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Geodesy. |
proj4 definition
+proj=longlat +ellps=clrk80ign +pm=paris +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:4816.
WKT (ESRI format, the .prj content)
GEOGCS["GCS_Carthage_Paris",DATUM["Carthage_(Paris)",SPHEROID["Clarke_1880_IGN",6378249.2,293.466021293627]],PRIMEM["Paris",2.33722917],UNIT["Grad",0.0157079632679489]]Other systems — Tunisia
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.