EPSG:1241

NAD27 to NAD83 (1)

Attributes

Geodetic CRS: NAD27

Datum: North American Datum 1927

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: OGP

Information source: US Coast & Geodetic Survey www.ngs.noaa.gov

Revision date: 2004-04-27

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Definition: OGP XML

<?xml version="1.0" encoding="UTF-8"?>
 <gml:Transformation xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="epsg-op-1241">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>transformation</epsg:type>
         <epsg:informationSource>US Coast &amp; Geodetic Survey www.ngs.noaa.gov</epsg:informationSource>
         <epsg:revisionDate>2004-04-27</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::1998.201" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::1998.530" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2000.140" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2004.360" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>false</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:metaDataProperty>
      <epsg:CoordinateOperationMetaData>
         <epsg:variant>1</epsg:variant>
      </epsg:CoordinateOperationMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:coordinateOperation:EPSG::1241</gml:identifier>
   <gml:name>NAD27 to NAD83 (1)</gml:name>
   <gml:remarks>Uses NADCON method which expects longitudes positive west; EPSG GeogCRS NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east.</gml:remarks>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::2374" />
   <gml:scope>Accuracy at 67% confidence level is 0.15m onshore, 5m nearshore and undetermined farther offshore.</gml:scope>
   <gml:operationVersion>NGS-Usa Conus</gml:operationVersion>
   <gml:coordinateOperationAccuracy>
      <gmd:DQ_RelativeInternalPositionalAccuracy>
         <gmd:result>
            <gmd:DQ_QuantitativeResult>
               <gmd:valueUnit xlink:href="urn:ogc:def:uom:EPSG::9001" />
               <gmd:value>
                  <gco:Record>
                     <gco:Decimal>0.15</gco:Decimal>
                  </gco:Record>
               </gmd:value>
            </gmd:DQ_QuantitativeResult>
         </gmd:result>
      </gmd:DQ_RelativeInternalPositionalAccuracy>
   </gml:coordinateOperationAccuracy>
   <gml:sourceCRS xlink:href="urn:ogc:def:crs:EPSG::4267" />
   <gml:targetCRS xlink:href="urn:ogc:def:crs:EPSG::4269" />
   <gml:method xlink:href="urn:ogc:def:method:EPSG::9613" />
   <gml:parameterValue>
      <gml:ParameterValue>
         <gml:valueFile>conus.las</gml:valueFile>
         <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8657" />
      </gml:ParameterValue>
   </gml:parameterValue>
   <gml:parameterValue>
      <gml:ParameterValue>
         <gml:valueFile>conus.los</gml:valueFile>
         <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8658" />
      </gml:ParameterValue>
   </gml:parameterValue>
</gml:Transformation>
<?xml version="1.0" encoding="UTF-8"?>
 <gml:Transformation xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="epsg-op-1241">
   <gml:metaDataProperty>
      <epsg:CommonMetaData>
         <epsg:type>transformation</epsg:type>
         <epsg:informationSource>US Coast &amp; Geodetic Survey www.ngs.noaa.gov</epsg:informationSource>
         <epsg:revisionDate>2004-04-27</epsg:revisionDate>
         <epsg:changes>
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::1998.201" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::1998.530" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2000.140" />
            <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2004.360" />
         </epsg:changes>
         <epsg:show>true</epsg:show>
         <epsg:isDeprecated>false</epsg:isDeprecated>
      </epsg:CommonMetaData>
   </gml:metaDataProperty>
   <gml:metaDataProperty>
      <epsg:CoordinateOperationMetaData>
         <epsg:variant>1</epsg:variant>
      </epsg:CoordinateOperationMetaData>
   </gml:metaDataProperty>
   <gml:identifier codeSpace="OGP">urn:ogc:def:coordinateOperation:EPSG::1241</gml:identifier>
   <gml:name>NAD27 to NAD83 (1)</gml:name>
   <gml:remarks>Uses NADCON method which expects longitudes positive west; EPSG GeogCRS NAD27 (code 4267) and NAD83 (code 4269) have longitudes positive east.</gml:remarks>
   <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::2374" />
   <gml:scope>Accuracy at 67% confidence level is 0.15m onshore, 5m nearshore and undetermined farther offshore.</gml:scope>
   <gml:operationVersion>NGS-Usa Conus</gml:operationVersion>
   <gml:coordinateOperationAccuracy>
      <gmd:DQ_RelativeInternalPositionalAccuracy>
         <gmd:result>
            <gmd:DQ_QuantitativeResult>
               <gmd:valueUnit xlink:href="urn:ogc:def:uom:EPSG::9001" />
               <gmd:value>
                  <gco:Record>
                     <gco:Decimal>0.15</gco:Decimal>
                  </gco:Record>
               </gmd:value>
            </gmd:DQ_QuantitativeResult>
         </gmd:result>
      </gmd:DQ_RelativeInternalPositionalAccuracy>
   </gml:coordinateOperationAccuracy>
   <gml:sourceCRS xlink:href="urn:ogc:def:crs:EPSG::4267" />
   <gml:targetCRS xlink:href="urn:ogc:def:crs:EPSG::4269" />
   <gml:method xlink:href="urn:ogc:def:method:EPSG::9613" />
   <gml:parameterValue>
      <gml:ParameterValue>
         <gml:valueFile>conus.las</gml:valueFile>
         <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8657" />
      </gml:ParameterValue>
   </gml:parameterValue>
   <gml:parameterValue>
      <gml:ParameterValue>
         <gml:valueFile>conus.los</gml:valueFile>
         <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8658" />
      </gml:ParameterValue>
   </gml:parameterValue>
</gml:Transformation>