EPSG:30340 TC(1948) / UTM zone 40N
Projected system (Transverse Mercator) in use: UAE - Abu Dhabi and Dubai - onshore east of 54°E. The full definition below, and conversion in one click.
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:30340 |
|---|---|
| Name | TC(1948) / UTM zone 40N |
| Type | Projected system — Transverse Mercator |
| Area of use |
UAE - Abu Dhabi and Dubai - onshore east of 54°E United Arab Emirates (UAE) - Abu Dhabi onshore east of 54°E; Dubai onshore. |
| Bounds | W 53,99° · S 22,63° · E 56,03° · N 25,34° |
| Countries | United Arab Emirates |
| Datum | Trucial Coast 1948 |
| Ellipsoid | Helmert 1906 a = 6378200 m · 1/f = 298.3 |
| Base geographic system | EPSG:4303 — TC(1948) |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | No simple transformation published (ellipsoid alone) |
| Scope | Oil and gas exploration and production. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | 57 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=40 +ellps=helmert +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:30340.
WKT (ESRI format, the .prj content)
PROJCS["TC_1948_UTM_Zone_40N",GEOGCS["GCS_Trucial_Coast_1948",DATUM["D_Trucial_Coast_1948",SPHEROID["Helmert_1906",6378200.0,298.3]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",57.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — United Arab Emirates
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.