EPSG:9821 DEPRECATED

Lambert Azimuthal Equal Area (Spherical)

Attributes

Data source: OGP

Information source: USGS Professional Paper 1395, "Map Projections - A Working Manual" by John P. Snyder.

Revision date: 2001-06-05

Remarks: This is the spherical form of the projection. See coordinate operation method Lambert Azimuthal Equal Area (code 9820) for ellipsoidal form. Differences of several tens of metres result from comparison of the two methods.

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Definition: OGP XML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:OperationMethod 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="epsg-method-9821">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:informationSource>USGS Professional Paper 1395, "Map Projections - A Working Manual" by John P. Snyder.</epsg:informationSource>
         <epsg:revisionDate>2001-06-05</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2009.007" />
         </epsg:changes>
         <epsg:isDeprecated>true</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:metaDataProperty>
      <epsg:CoordinateOperationMethodMetaData>
         <epsg:isOperationReversible>true</epsg:isOperationReversible>
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8828" />
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8829" />
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8806" />
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8807" />
         <epsg:example>See information source.</epsg:example>
      </epsg:CoordinateOperationMethodMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:method:EPSG::9821</gml:identifier>
   <gml:name>Lambert Azimuthal Equal Area (Spherical)</gml:name>
   <gml:remarks>This is the spherical form of the projection.  See coordinate operation method Lambert Azimuthal Equal Area (code 9820) for ellipsoidal form.  Differences of several tens of metres result from comparison of the two methods.</gml:remarks>
   <gml:formula>See information source.</gml:formula>
   <gml:sourceDimensions>2</gml:sourceDimensions>
   <gml:targetDimensions>2</gml:targetDimensions>
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8828" />
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8829" />
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8806" />
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8807" />
</gml:OperationMethod>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:OperationMethod 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="epsg-method-9821">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:informationSource>USGS Professional Paper 1395, "Map Projections - A Working Manual" by John P. Snyder.</epsg:informationSource>
         <epsg:revisionDate>2001-06-05</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2009.007" />
         </epsg:changes>
         <epsg:isDeprecated>true</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:metaDataProperty>
      <epsg:CoordinateOperationMethodMetaData>
         <epsg:isOperationReversible>true</epsg:isOperationReversible>
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8828" />
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8829" />
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8806" />
         <epsg:signReversal changeSign="false" xlink:href="urn:ogc:def:parameter:EPSG::8807" />
         <epsg:example>See information source.</epsg:example>
      </epsg:CoordinateOperationMethodMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:method:EPSG::9821</gml:identifier>
   <gml:name>Lambert Azimuthal Equal Area (Spherical)</gml:name>
   <gml:remarks>This is the spherical form of the projection.  See coordinate operation method Lambert Azimuthal Equal Area (code 9820) for ellipsoidal form.  Differences of several tens of metres result from comparison of the two methods.</gml:remarks>
   <gml:formula>See information source.</gml:formula>
   <gml:sourceDimensions>2</gml:sourceDimensions>
   <gml:targetDimensions>2</gml:targetDimensions>
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8828" />
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8829" />
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8806" />
   <gml:generalOperationParameter xlink:href="urn:ogc:def:parameter:EPSG::8807" />
</gml:OperationMethod>