EPSG:30791

Nord Sahara 1959 / Nord Algerie

Attributes

Unit: metre

Geodetic CRS: Nord Sahara 1959

Datum: Nord Sahara 1959

Ellipsoid: Clarke 1880 (RGS)

Prime meridian: Greenwich

Data source: OGP

Information source: "Le System Geodesique Nord-Sahara"; IGN Paris

Revision date: 2012-04-18

Scope: Large and medium scale topographic mapping and engineering survey.

Remarks: Replaces Voirol 1879 / Nord Algerie ancienne (code 30493). Grid coordinates on average across Algeria are unchanged although local differences reach 30 metres; geographic coordinate equivalents do change.

Method: Position Vector transformation (geog2D domain)

Area of use: Algeria - onshore north of 38.5 grads North (34°39'N).

Coordinate system: Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: m.

Center coordinates
438802.37 -725377.07

Projected bounds:
354063.83 -805873.34
522159.81 -644309.71

WGS84 bounds:
1.26 26.06
2.92 27.51

Algeria - Ahnet licence area.
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Definition: Well Known Text (WKT)

PROJCS["Nord Sahara 1959 / Nord Algerie",
    GEOGCS["Nord Sahara 1959",
        DATUM["Nord_Sahara_1959",
            SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,
                AUTHORITY["EPSG","7012"]],
            TOWGS84[-168.52,-72.05,304.3,0,0,0,0],
            AUTHORITY["EPSG","6307"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4307"]],
    PROJECTION["Lambert_Conformal_Conic_1SP"],
    PARAMETER["latitude_of_origin",36],
    PARAMETER["central_meridian",2.7],
    PARAMETER["scale_factor",0.999625544],
    PARAMETER["false_easting",500135],
    PARAMETER["false_northing",300090],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["X",EAST],
    AXIS["Y",NORTH],
    AUTHORITY["EPSG","30791"]]
PROJCS["Nord Sahara 1959 / Nord Algerie",
    GEOGCS["Nord Sahara 1959",
        DATUM["Nord_Sahara_1959",
            SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,
                AUTHORITY["EPSG","7012"]],
            TOWGS84[-168.52,-72.05,304.3,0,0,0,0],
            AUTHORITY["EPSG","6307"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4307"]],
    PROJECTION["Lambert_Conformal_Conic_1SP"],
    PARAMETER["latitude_of_origin",36],
    PARAMETER["central_meridian",2.7],
    PARAMETER["scale_factor",0.999625544],
    PARAMETER["false_easting",500135],
    PARAMETER["false_northing",300090],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["X",EAST],
    AXIS["Y",NORTH],
    AUTHORITY["EPSG","30791"]]

Definition: ESRI WKT

PROJCS["Nord_Sahara_1959_Nord_Algerie",GEOGCS["GCS_Nord Sahara 1959",DATUM["D_Nord_Sahara_1959",SPHEROID["Clarke_1880_RGS",6378249.145,293.465]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["latitude_of_origin",36],PARAMETER["central_meridian",2.7],PARAMETER["scale_factor",0.999625544],PARAMETER["false_easting",500135],PARAMETER["false_northing",300090],UNIT["Meter",1],PARAMETER["standard_parallel_1",36]]

Definition: PROJ.4

+proj=lcc +lat_1=36 +lat_0=36 +lon_0=2.7 +k_0=0.999625544 +x_0=500135 +y_0=300090 +ellps=clrk80 +towgs84=-168.52,-72.05,304.3,0,0,0,0 +units=m +no_defs 

Definition: JavaScript (Proj4js)

proj4.defs("EPSG:30791","+proj=lcc +lat_1=36 +lat_0=36 +lon_0=2.7 +k_0=0.999625544 +x_0=500135 +y_0=300090 +ellps=clrk80 +towgs84=-168.52,-72.05,304.3,0,0,0,0 +units=m +no_defs");

Definition: OGC GML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:ProjectedCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="ogp-crs-30791">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>projected</epsg:type>
         <epsg:alias alias="Nord Sahara 1959 / Lambert Nord Voirol Unifie 1960" code="156" codeSpace="urn:ogc:def:naming-system:EPSG::7301">
            <epsg:remarks>Voirol Unifie 1960 is NOT a geodetic datum nor GeogCRS. It is two Lambert projected coordinate reference systems based on Nord Sahara 1959 Datum. See also CRS code 30792.</epsg:remarks>
         </epsg:alias>
         <epsg:alias alias="Nord Sahara / N Algerie" code="1115" codeSpace="urn:ogc:def:naming-system:EPSG::7302" />
         <epsg:alias alias="Nord Sahara 1959 / Lambert Algerie Nord" code="23255" codeSpace="urn:ogc:def:naming-system:EPSG::1036" />
         <epsg:alias alias="Nord Sahara 1959 / LAN" code="23256" codeSpace="urn:ogc:def:naming-system:EPSG::1036" />
         <epsg:alias alias="Nord Sahara 1959 / Voirol Unifie Nord" code="23268" codeSpace="urn:ogc:def:naming-system:EPSG::7301">
            <epsg:remarks>Voirol Unifie 1960 is NOT a geodetic datum nor GeogCRS. It is two Lambert projected coordinate reference systems based on Nord Sahara 1959 Datum. See also CRS code 30792.</epsg:remarks>
         </epsg:alias>
         <epsg:informationSource>"Le System Geodesique Nord-Sahara"; IGN Paris</epsg:informationSource>
         <epsg:revisionDate>2012-04-18</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2002.560" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2003.361" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2011.111" />
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         <epsg:show>true</epsg:show>
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   <gml:remarks>Replaces Voirol 1879 / Nord Algerie ancienne (code 30493). Grid coordinates on average across Algeria are unchanged although local differences reach 30 metres; geographic coordinate equivalents do change.</gml:remarks>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1728" />
   <gml:scope>Large and medium scale topographic mapping and engineering survey.</gml:scope>
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   <gml:baseGeodeticCRS xlink:href="urn:ogc:def:crs:EPSG::4307" />
   <gml:cartesianCS xlink:href="urn:ogc:def:cs:EPSG::4499" />
</gml:ProjectedCRS>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:ProjectedCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="ogp-crs-30791">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
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         <epsg:alias alias="Nord Sahara 1959 / Lambert Nord Voirol Unifie 1960" code="156" codeSpace="urn:ogc:def:naming-system:EPSG::7301">
            <epsg:remarks>Voirol Unifie 1960 is NOT a geodetic datum nor GeogCRS. It is two Lambert projected coordinate reference systems based on Nord Sahara 1959 Datum. See also CRS code 30792.</epsg:remarks>
         </epsg:alias>
         <epsg:alias alias="Nord Sahara / N Algerie" code="1115" codeSpace="urn:ogc:def:naming-system:EPSG::7302" />
         <epsg:alias alias="Nord Sahara 1959 / Lambert Algerie Nord" code="23255" codeSpace="urn:ogc:def:naming-system:EPSG::1036" />
         <epsg:alias alias="Nord Sahara 1959 / LAN" code="23256" codeSpace="urn:ogc:def:naming-system:EPSG::1036" />
         <epsg:alias alias="Nord Sahara 1959 / Voirol Unifie Nord" code="23268" codeSpace="urn:ogc:def:naming-system:EPSG::7301">
            <epsg:remarks>Voirol Unifie 1960 is NOT a geodetic datum nor GeogCRS. It is two Lambert projected coordinate reference systems based on Nord Sahara 1959 Datum. See also CRS code 30792.</epsg:remarks>
         </epsg:alias>
         <epsg:informationSource>"Le System Geodesique Nord-Sahara"; IGN Paris</epsg:informationSource>
         <epsg:revisionDate>2012-04-18</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2002.560" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2003.361" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2011.111" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>false</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:crs:EPSG::30791</gml:identifier>
   <gml:name>Nord Sahara 1959 / Nord Algerie</gml:name>
   <gml:remarks>Replaces Voirol 1879 / Nord Algerie ancienne (code 30493). Grid coordinates on average across Algeria are unchanged although local differences reach 30 metres; geographic coordinate equivalents do change.</gml:remarks>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1728" />
   <gml:scope>Large and medium scale topographic mapping and engineering survey.</gml:scope>
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   <gml:cartesianCS xlink:href="urn:ogc:def:cs:EPSG::4499" />
</gml:ProjectedCRS>

Definition: XML

<?xml version="1.0" encoding="UTF-8"?>
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  <gml:srsName>Nord Sahara 1959 / Nord Algerie</gml:srsName>
  <gml:srsID>
    <gml:name gml:codeSpace="urn:ogc:def:crs:EPSG::">30791</gml:name>
  </gml:srsID>
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      <gml:srsID>
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          <gml:csName>ellipsoidal</gml:csName>
          <gml:csID>
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          </gml:csID>
          <gml:usesAxis>
            <gml:CoordinateSystemAxis gml:id="ogrcrs509144" gml:uom="urn:ogc:def:uom:EPSG::9102">
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              <gml:axisID>
                <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9901</gml:name>
              </gml:axisID>
              <gml:axisAbbrev>Lat</gml:axisAbbrev>
              <gml:axisDirection>north</gml:axisDirection>
            </gml:CoordinateSystemAxis>
          </gml:usesAxis>
          <gml:usesAxis>
            <gml:CoordinateSystemAxis gml:id="ogrcrs509145" gml:uom="urn:ogc:def:uom:EPSG::9102">
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              <gml:axisID>
                <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9902</gml:name>
              </gml:axisID>
              <gml:axisAbbrev>Lon</gml:axisAbbrev>
              <gml:axisDirection>east</gml:axisDirection>
            </gml:CoordinateSystemAxis>
          </gml:usesAxis>
        </gml:EllipsoidalCS>
      </gml:usesEllipsoidalCS>
      <gml:usesGeodeticDatum>
        <gml:GeodeticDatum gml:id="ogrcrs509146">
          <gml:datumName>Nord_Sahara_1959</gml:datumName>
          <gml:datumID>
            <gml:name gml:codeSpace="urn:ogc:def:datum:EPSG::">6307</gml:name>
          </gml:datumID>
          <gml:usesPrimeMeridian>
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              <gml:meridianID>
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      <gml:usesMethod xlink:href="urn:ogc:def:method:EPSG::9801" />
      <gml:usesParameterValue>
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</gml:ProjectedCRS>
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 <gml:ProjectedCRS gml:id="ogrcrs509141" xmlns:gml="http://www.opengis.net/gml/3.2">
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      </gml:csID>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs509151" gml:uom="urn:ogc:def:uom:EPSG::9001">
          <gml:name>Easting</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9906</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>E</gml:axisAbbrev>
          <gml:axisDirection>east</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
      <gml:usesAxis>
        <gml:CoordinateSystemAxis gml:id="ogrcrs509152" gml:uom="urn:ogc:def:uom:EPSG::9001">
          <gml:name>Northing</gml:name>
          <gml:axisID>
            <gml:name gml:codeSpace="urn:ogc:def:axis:EPSG::">9907</gml:name>
          </gml:axisID>
          <gml:axisAbbrev>N</gml:axisAbbrev>
          <gml:axisDirection>north</gml:axisDirection>
        </gml:CoordinateSystemAxis>
      </gml:usesAxis>
    </gml:CartesianCS>
  </gml:usesCartesianCS>
</gml:ProjectedCRS>

Definition: GeoServer

30791=PROJCS["Nord Sahara 1959 / Nord Algerie",GEOGCS["Nord Sahara 1959",DATUM["Nord_Sahara_1959",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],TOWGS84[-168.52,-72.05,304.3,0,0,0,0],AUTHORITY["EPSG","6307"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4307"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",36],PARAMETER["central_meridian",2.7],PARAMETER["scale_factor",0.999625544],PARAMETER["false_easting",500135],PARAMETER["false_northing",300090],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["X",EAST],AXIS["Y",NORTH],AUTHORITY["EPSG","30791"]]

Definition: MapServer - MAPfile

PROJECTION
	"proj=lcc"
	"lat_1=36"
	"lat_0=36"
	"lon_0=2.7"
	"k_0=0.999625544"
	"x_0=500135"
	"y_0=300090"
	"ellps=clrk80"
	"towgs84=-168.52,-72.05,304.3,0,0,0,0"
	"units=m"
	"no_defs"
END

Definition: Mapnik

<?xml version="1.0" encoding="utf-8"?>
<Map srs="+proj=lcc +lat_1=36 +lat_0=36 +lon_0=2.7 +k_0=0.999625544 +x_0=500135 +y_0=300090 +ellps=clrk80 +towgs84=-168.52,-72.05,304.3,0,0,0,0 +units=m +no_defs">
	<Layer srs="+proj=lcc +lat_1=36 +lat_0=36 +lon_0=2.7 +k_0=0.999625544 +x_0=500135 +y_0=300090 +ellps=clrk80 +towgs84=-168.52,-72.05,304.3,0,0,0,0 +units=m +no_defs">
	</Layer>
</Map>

Definition: SQL (PostGIS)

INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 30791, 'EPSG', 30791, '+proj=lcc +lat_1=36 +lat_0=36 +lon_0=2.7 +k_0=0.999625544 +x_0=500135 +y_0=300090 +ellps=clrk80 +towgs84=-168.52,-72.05,304.3,0,0,0,0 +units=m +no_defs ', 'PROJCS["Nord Sahara 1959 / Nord Algerie",GEOGCS["Nord Sahara 1959",DATUM["Nord_Sahara_1959",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],TOWGS84[-168.52,-72.05,304.3,0,0,0,0],AUTHORITY["EPSG","6307"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4307"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",36],PARAMETER["central_meridian",2.7],PARAMETER["scale_factor",0.999625544],PARAMETER["false_easting",500135],PARAMETER["false_northing",300090],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["X",EAST],AXIS["Y",NORTH],AUTHORITY["EPSG","30791"]]');

Definition: OGC WKT

PROJCS["Nord Sahara 1959 / Nord Algerie",GEOGCS["Nord Sahara 1959",DATUM["Nord_Sahara_1959",SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,AUTHORITY["EPSG","7012"]],TOWGS84[-168.52,-72.05,304.3,0,0,0,0],AUTHORITY["EPSG","6307"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4307"]],PROJECTION["Lambert_Conformal_Conic_1SP"],PARAMETER["latitude_of_origin",36],PARAMETER["central_meridian",2.7],PARAMETER["scale_factor",0.999625544],PARAMETER["false_easting",500135],PARAMETER["false_northing",300090],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["X",EAST],AXIS["Y",NORTH],AUTHORITY["EPSG","30791"]]

Definition: USGS

[0, 0, (6378249.145, 6356514.8695497755, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0), -1]