EPSG:2088 — Carthage / TM 6
Carthage / TM 6 (EPSG:2088) — a Projected (metres) system on the clrk80ign datum, used in Tunisia. Parameters, proj4, WKT, accuracy ±1.2 m, plus a free converter to WGS8…
At a glance
- EPSG
- 2088
- Name
- Carthage / TM 6
- Kind
- Projected (metres)
- Family
- Transverse Mercator (belt)
- Ellipsoid
- clrk80ign
- Accuracy
- ±1.2 m (vs PROJ)
- Countries
- Tunisia
Area of use
| West | 7.81° |
| South | 33.22° |
| East | 13.67° |
| North | 38.41° |
Projection parameters
| Projection | tmerc |
| Latitude of origin | 0 |
| Central meridian | 11 |
| Scale factor | 0.9996 |
| False easting | 500000 |
| False northing | 0 |
| Ellipsoid | clrk80ign |
| Units | m |
| Helmert shift to WGS84 | -263,6,431,0,0,0,0 |
+proj=tmerc +lat_0=0 +lon_0=11 +k=0.9996 +x_0=500000 +y_0=0 +ellps=clrk80ign +units=m +no_defs +towgs84=-263,6,431,0,0,0,0
PROJCS["Carthage / TM 6",GEOGCS["GCS_Carthage / TM 6",DATUM["D_Clarke_1880_IGN",SPHEROID["Clarke_1880_IGN",6378249.2,293.4660212936269],TOWGS84[-263,6,431,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",11],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0],UNIT["Meter",1],AUTHORITY["EPSG","2088"]]
Sample conversion
Tunisia capital: WGS84 10.18150, 36.80650 → EPSG:2088 426931.752, 4073264.408
Values are within ±1.2 m at the test point.
About the Transverse Mercator (belt) family
Carthage / TM 6 is a Transverse Mercator belt — a national or cadastral grid in metres, conformal (angles are preserved), with its own central meridian and scale factor. Egypt's Red/Purple/Blue belts, the Levant grids, and many Gulf cadastral systems are of this kind.
Two things decide whether your coordinates land correctly: the exact belt (central meridian) and the datum. Mixing a coordinate from one belt into another, or ignoring the datum shift to WGS 84, is the usual cause of a systematic offset in imported survey data.
Related systems
- EPSG:4223 — Carthage
- EPSG:22332 — Carthage / UTM zone 32N
- EPSG:22391 — Carthage / Nord Tunisie
- EPSG:22392 — Carthage / Sud Tunisie
- EPSG:32632 — WGS 84 / UTM zone 32N
Useful links: Converter · Batch converter · File converter · Country page
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FAQ
- What is EPSG:2088?
- It is the coordinate system “Carthage / TM 6”, a Projected (metres) system in the Transverse Mercator (belt) family, identified worldwide by the code EPSG:2088.
- What datum does it use, and how accurate is it?
- It is based on the clrk80ign ellipsoid and it carries Helmert parameters to WGS84. The residual at the test point is about ±1.2 m versus PROJ; for centimetre work use a geodetic adjustment service.
- Where is this system used?
- It is used in Tunisia. This page shows its area of use as a coordinate rectangle above.
- How do I convert EPSG:2088 to WGS84?
- Use the free coordinate converter above (preloaded with this system) to convert to WGS84, UTM, or any other system, within a ±1.2 m residual.
You may also need: Arab-world coordinate converter · Surveying file format converter · Batch coordinate file converter