EPSG:22780 — Deir ez Zor / Levant Stereographic
Deir ez Zor / Levant Stereographic (EPSG:22780) — a Projected (metres) system on the clrk80ign datum, used in Lebanon, Syria. Parameters, proj4, WKT, accuracy ±0.1 m, pl…
At a glance
- EPSG
- 22780
- Name
- Deir ez Zor / Levant Stereographic
- Kind
- Projected (metres)
- Family
- Oblique Stereographic
- Ellipsoid
- clrk80ign
- Accuracy
- ±0.1 m (vs PROJ)
- Countries
- Lebanon، Syria
Area of use
| West | 35.04° |
| South | 32.31° |
| East | 42.38° |
| North | 37.30° |
Projection parameters
| Projection | sterea |
| Latitude of origin | 34.2 |
| Central meridian | 39.15 |
| Scale factor | 0.9995341 |
| False easting | 0 |
| False northing | 0 |
| Ellipsoid | clrk80ign |
| Units | m |
| Helmert shift to WGS84 | -190.421,8.532,238.69,0,0,0,0 |
+proj=sterea +lat_0=34.2 +lon_0=39.15 +k=0.9995341 +x_0=0 +y_0=0 +ellps=clrk80ign +units=m +no_defs +towgs84=-190.421,8.532,238.69,0,0,0,0
PROJCS["Deir ez Zor / Levant Stereographic",GEOGCS["GCS_Deir ez Zor / Levant Stereographic",DATUM["D_Clarke_1880_IGN",SPHEROID["Clarke_1880_IGN",6378249.2,293.4660212936269],TOWGS84[-190.421,8.532,238.69,0,0,0,0]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]],PROJECTION["Double_Stereographic"],PARAMETER["False_Easting",0],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",39.15],PARAMETER["Scale_Factor",0.9995341],PARAMETER["Latitude_Of_Origin",34.2],UNIT["Meter",1],AUTHORITY["EPSG","22780"]]
Sample conversion
Lebanon capital: WGS84 35.50180, 33.89380 → EPSG:22780 -337437.013, -27887.448
Values are within ±0.1 m at the test point.
About the Oblique Stereographic family
Deir ez Zor / Levant Stereographic uses the Oblique Stereographic projection — an azimuthal, conformal grid centred on a single origin point, historically used for compact national grids such as the Levant. It preserves angles and is well behaved near its centre.
As with any projected grid, confirm the datum and origin before importing; scale grows with distance from the central point, so reduce long ground distances to grid for precise work.
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