EPSG:21291 Barbados 1938 / British West Indies Grid
Projected system (Transverse Mercator) in use: Barbados - onshore. The full definition below, and conversion in one click.
| Code | EPSG:21291 |
|---|---|
| Name | Barbados 1938 / British West Indies Grid |
| Type | Projected system — Transverse Mercator |
| Area of use | Barbados - onshore |
| Bounds | W -59,71° · S 13,00° · E -59,37° · N 13,39° |
| Countries | Barbados |
| Datum | Barbados 1938 |
| Ellipsoid | Clarke 1880 (RGS) a = 6378249.145 m · 1/f = 293.465 |
| Base geographic system | EPSG:4212 — Barbados 1938 |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | Barbados 1938 to WGS 84 (1) (EPSG:15793) — accuracy 3 m |
| Scope | Cadastre, engineering survey, topographic mapping (large and medium scale). |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -62 | degree |
| Scale factor at natural origin | 0.9995 | unity |
| False easting | 400000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=tmerc +lat_0=0 +lon_0=-62 +k=0.9995 +x_0=400000 +y_0=0 +a=6378249.145 +rf=293.465 +units=m +towgs84=31.95,300.99,419.19 +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:21291.
WKT (ESRI format, the .prj content)
PROJCS["Barbados_1938_British_West_Indies_Grid",GEOGCS["GCS_Barbados_1938",DATUM["D_Barbados_1938",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",400000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-62.0],PARAMETER["Scale_Factor",0.9995],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Barbados
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.