Description of CRS - FR_RGF93 / LAMB93| Attribute | Entry |
|---|
| Country | France |
| Country identifier | FR |
| CRS identifier | FR_RGF93 / LAMB93 |
| CRS alias |
|
| CRS valid area | France |
| CRS scope | |
| CRS remarks |
|
| Datum identifier | RGF93 |
| Datum alias | Reseau Geodesique Francais |
| Datum type | geodetic |
| Datum anchor point | geocentric |
| Datum realization epoch | 1993 |
| Datum valid area | France |
| Datum scope |
|
| Datum remarks | RGF93 is a 3-dimensional and geocentric datum defined from
the European reference system ETRS89 (therefore no
transformation parameters to ETRS89 necessary) |
| Prime meridian identifier | Greenwich |
| Prime meridian greenwich longitude | 0° |
| Prime meridian remarks | |
| Ellipsoid identifier | GRS 80 |
| Ellipsoid alias | New International |
| Ellipsoid semi major axis | 6 378 137 m |
| Ellipsoid shape | true |
| Ellipsoid inverse flattening | 298.257222101 |
| Ellipsoid remarks | see Moritz, H. (1988): Geodetic Reference System 1980.
Bulletin Geodesique, The Geodesists Handbook, 1988,
Internat. Union of Geodesy and Geophysics |
| Coordinate system identifier | LAMB93 |
| Coordinate system type | projected |
| Coordinate system dimension | 2 |
| Coordinate system remarks | |
| Coordinate system axis name | northing |
| Coordinate system axis direction | North |
| Coordinate system axis unit identifier | metre |
| Coordinate system axis name | easting |
| Coordinate system axis direction | East |
| Coordinate system axis unit identifier | metre |
| Operation identifier | LAMB93 |
| Operation valid area | France |
| Operation scope | application area:
latitude 41° N ... 51° N |
| Operation method name | Lambert Conformal Conic Projection with 2 standard parallels |
| Operation method name alias |
|
| Operation method formula | A. Harmel and M. Le Pape:
Lambert-93, projection asscoiee au system geodesique
RGF93, IGN, December 1996 |
| Operation method parameters number | 6 |
| Operation method remarks |
|
| Operation parameter name | lower parallel |
| Operation parameter value | 44° N |
| Operation parameter remarks | |
| Operation parameter name | upper parallel |
| Operation parameter value | 49° N |
| Operation parameter remarks | |
| Operation parameter name | latitude grid origin |
| Operation parameter value | 46°30' N |
| Operation parameter remarks | |
| Operation parameter name | longitude grid origin |
| Operation parameter value | 3° E |
| Operation parameter remarks | wrt to Greenwich |
| Operation parameter name | false northing |
| Operation parameter value | 6 600 000 m |
| Operation parameter remarks | |
| Operation parameter name | false easting |
| Operation parameter value | 700 000 m |
| Operation parameter remarks | |