NAD27(CGQ77) to WGS 84 (3)

Attributes

Geodetic CRS: NAD27(CGQ77)

Datum: North American Datum 1927 (CGQ77)

Ellipsoid: Clarke 1866

Prime meridian: Greenwich

Data source: OGP

Information source: OGP

Revision date: 2019-09-17

Scope: Approximation at the +/- 1m level.

Remarks: Parameter file is from NAD27(CGQ77) to NAD83(CSRS) (1) (code 1845) assuming that NAD83(CSRS98) is equivalent to WGS 84 within the accuracy of the transformation. Also distributed with file name CGQ77-98.gsb.

Method: NTv2

Area of use: Canada - Quebec.

Description: CQ77NA83.GSB

Covered area powered by MapTiler

Canada - Quebec.

Coordinates on a map

NAD27(CGQ77) / Quebec Lambert code 2138
NAD27(CGQ77) / UTM zone 21N code 2035
NAD27(CGQ77) / UTM zone 20N code 2034
NAD27(CGQ77) / UTM zone 19N code 2033
NAD27(CGQ77) / UTM zone 18N code 2032
More

Definition: OGP XML

<div class="syntax"><pre><?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="iogp-op-1691"> <gml:metaDataProperty> <epsg:CommonMetaData> <epsg:type>transformation</epsg:type> <epsg:informationSource>OGP</epsg:informationSource> <epsg:revisionDate>2019-09-17</epsg:revisionDate> <epsg:changes> <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2019.034" /> </epsg:changes> <epsg:show>true</epsg:show> <epsg:isDeprecated>false</epsg:isDeprecated> </epsg:CommonMetaData> </gml:metaDataProperty> <gml:metaDataProperty> <epsg:CoordinateOperationMetaData> <epsg:variant>3</epsg:variant> </epsg:CoordinateOperationMetaData> </gml:metaDataProperty> <gml:identifier codeSpace="IOGP">urn:ogc:def:coordinateOperation:EPSG::1691</gml:identifier> <gml:name>NAD27(CGQ77) to WGS 84 (3)</gml:name> <gml:remarks>Parameter file is from NAD27(CGQ77) to NAD83(CSRS) (1) (code 1845) assuming that NAD83(CSRS98) is equivalent to WGS 84 within the accuracy of the transformation. Also distributed with file name CGQ77-98.gsb.</gml:remarks> <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1368" /> <gml:scope>Approximation at the +/- 1m level.</gml:scope> <gml:operationVersion>EPSG-Can Qc NT2</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>1</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::4609" /> <gml:targetCRS xlink:href="urn:ogc:def:crs:EPSG::4326" /> <gml:method xlink:href="urn:ogc:def:method:EPSG::9615" /> <gml:parameterValue> <gml:ParameterValue> <gml:valueFile>CQ77NA83.GSB</gml:valueFile> <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8656" /> </gml:ParameterValue> </gml:parameterValue> </gml:Transformation> </pre></div>

<?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="iogp-op-1691">
  <gml:metaDataProperty>
    <epsg:CommonMetaData>
      <epsg:type>transformation</epsg:type>
      <epsg:informationSource>OGP</epsg:informationSource>
      <epsg:revisionDate>2019-09-17</epsg:revisionDate>
      <epsg:changes>
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2019.034" />
      </epsg:changes>
      <epsg:show>true</epsg:show>
      <epsg:isDeprecated>false</epsg:isDeprecated>
    </epsg:CommonMetaData>
  </gml:metaDataProperty>
  <gml:metaDataProperty>
    <epsg:CoordinateOperationMetaData>
      <epsg:variant>3</epsg:variant>
    </epsg:CoordinateOperationMetaData>
  </gml:metaDataProperty>
  <gml:identifier codeSpace="IOGP">urn:ogc:def:coordinateOperation:EPSG::1691</gml:identifier>
  <gml:name>NAD27(CGQ77) to WGS 84 (3)</gml:name>
  <gml:remarks>Parameter file is from NAD27(CGQ77) to NAD83(CSRS) (1) (code 1845) assuming that NAD83(CSRS98) is equivalent to WGS 84 within the accuracy of the transformation. Also distributed with file name CGQ77-98.gsb.</gml:remarks>
  <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1368" />
  <gml:scope>Approximation at the +/- 1m level.</gml:scope>
  <gml:operationVersion>EPSG-Can Qc NT2</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>1</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::4609" />
  <gml:targetCRS xlink:href="urn:ogc:def:crs:EPSG::4326" />
  <gml:method xlink:href="urn:ogc:def:method:EPSG::9615" />
  <gml:parameterValue>
    <gml:ParameterValue>
      <gml:valueFile>CQ77NA83.GSB</gml:valueFile>
      <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8656" />
    </gml:ParameterValue>
  </gml:parameterValue>
</gml:Transformation>

EPSG:1691