EPSG:1681 DEPRECATED

OSGB 1936 / British National Grid to WGS 84 (1)

Attributes

Geodetic CRS: OSGB 1936

Datum: OSGB 1936

Ellipsoid: Airy 1830

Prime meridian: Greenwich

Data source: OGP

Information source: OGP

Revision date: 2001-08-15

Scope: Accuracy 1m.

Remarks: Parameter values taken from OSGB 1936 / British National Grid to ETRS89 (1) (code 1036) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the transformation. Replaced by OSGB 1936 / British National Grid to WGS 84 (2) (code 15956).

Method: Ordnance Survey National Transformation

Area of use: United Kingdom (UK) - Great Britain - England and Wales onshore, Scotland onshore and Western Isles nearshore; Isle of Man onshore.

Description: ostn97.txt

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Definition: OGP XML

<div class="syntax"><pre><span class="cp">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;</span> <span class="nt">&lt;gml:Transformation</span> <span class="na">xmlns:epsg=</span><span class="s">&quot;urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset&quot;</span> <span class="na">xmlns:gco=</span><span class="s">&quot;http://www.isotc211.org/2005/gco&quot;</span> <span class="na">xmlns:gmd=</span><span class="s">&quot;http://www.isotc211.org/2005/gmd&quot;</span> <span class="na">xmlns:gml=</span><span class="s">&quot;http://www.opengis.net/gml/3.2&quot;</span> <span class="na">xmlns:xlink=</span><span class="s">&quot;http://www.w3.org/1999/xlink&quot;</span> <span class="na">gml:id=</span><span class="s">&quot;epsg-op-1681&quot;</span><span class="nt">&gt;</span> <span class="nt">&lt;gml:metaDataProperty&gt;</span> <span class="nt">&lt;epsg:CommonMetaData&gt;</span> <span class="nt">&lt;epsg:type&gt;</span>transformation<span class="nt">&lt;/epsg:type&gt;</span> <span class="nt">&lt;epsg:informationSource&gt;</span>OGP<span class="nt">&lt;/epsg:informationSource&gt;</span> <span class="nt">&lt;epsg:revisionDate&gt;</span>2001-08-15<span class="nt">&lt;/epsg:revisionDate&gt;</span> <span class="nt">&lt;epsg:changes&gt;</span> <span class="nt">&lt;epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:change-request:EPSG::2016.032&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;/epsg:changes&gt;</span> <span class="nt">&lt;epsg:show&gt;</span>true<span class="nt">&lt;/epsg:show&gt;</span> <span class="nt">&lt;epsg:isDeprecated&gt;</span>true<span class="nt">&lt;/epsg:isDeprecated&gt;</span> <span class="nt">&lt;/epsg:CommonMetaData&gt;</span> <span class="nt">&lt;/gml:metaDataProperty&gt;</span> <span class="nt">&lt;gml:metaDataProperty&gt;</span> <span class="nt">&lt;epsg:CoordinateOperationMetaData&gt;</span> <span class="nt">&lt;epsg:variant&gt;</span>1<span class="nt">&lt;/epsg:variant&gt;</span> <span class="nt">&lt;/epsg:CoordinateOperationMetaData&gt;</span> <span class="nt">&lt;/gml:metaDataProperty&gt;</span> <span class="nt">&lt;gml:identifier</span> <span class="na">codeSpace=</span><span class="s">&quot;OGP&quot;</span><span class="nt">&gt;</span>urn:ogc:def:coordinateOperation:EPSG::1681<span class="nt">&lt;/gml:identifier&gt;</span> <span class="nt">&lt;gml:name&gt;</span>OSGB 1936 / British National Grid to WGS 84 (1)<span class="nt">&lt;/gml:name&gt;</span> <span class="nt">&lt;gml:remarks&gt;</span>Parameter values taken from OSGB 1936 / British National Grid to ETRS89 (1) (code 1036) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the transformation. Replaced by OSGB 1936 / British National Grid to WGS 84 (2) (code 15956).<span class="nt">&lt;/gml:remarks&gt;</span> <span class="nt">&lt;gml:domainOfValidity</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:area:EPSG::1264&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;gml:scope&gt;</span>Accuracy 1m.<span class="nt">&lt;/gml:scope&gt;</span> <span class="nt">&lt;gml:operationVersion&gt;</span>EPSG-Gbr<span class="nt">&lt;/gml:operationVersion&gt;</span> <span class="nt">&lt;gml:coordinateOperationAccuracy&gt;</span> <span class="nt">&lt;gmd:DQ_RelativeInternalPositionalAccuracy&gt;</span> <span class="nt">&lt;gmd:result&gt;</span> <span class="nt">&lt;gmd:DQ_QuantitativeResult&gt;</span> <span class="nt">&lt;gmd:valueUnit</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:uom:EPSG::9001&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;gmd:value&gt;</span> <span class="nt">&lt;gco:Record&gt;</span> <span class="nt">&lt;gco:Decimal&gt;</span>1<span class="nt">&lt;/gco:Decimal&gt;</span> <span class="nt">&lt;/gco:Record&gt;</span> <span class="nt">&lt;/gmd:value&gt;</span> <span class="nt">&lt;/gmd:DQ_QuantitativeResult&gt;</span> <span class="nt">&lt;/gmd:result&gt;</span> <span class="nt">&lt;/gmd:DQ_RelativeInternalPositionalAccuracy&gt;</span> <span class="nt">&lt;/gml:coordinateOperationAccuracy&gt;</span> <span class="nt">&lt;gml:sourceCRS</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:crs:EPSG::27700&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;gml:targetCRS</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:crs:EPSG::4326&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;gml:method</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:method:EPSG::9633&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;gml:parameterValue&gt;</span> <span class="nt">&lt;gml:ParameterValue&gt;</span> <span class="nt">&lt;gml:valueFile&gt;</span>ostn97.txt<span class="nt">&lt;/gml:valueFile&gt;</span> <span class="nt">&lt;gml:operationParameter</span> <span class="na">xlink:href=</span><span class="s">&quot;urn:ogc:def:parameter:EPSG::8664&quot;</span> <span class="nt">/&gt;</span> <span class="nt">&lt;/gml:ParameterValue&gt;</span> <span class="nt">&lt;/gml:parameterValue&gt;</span> <span class="nt">&lt;/gml:Transformation&gt;</span> </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="epsg-op-1681">
  <gml:metaDataProperty>
    <epsg:CommonMetaData>
      <epsg:type>transformation</epsg:type>
      <epsg:informationSource>OGP</epsg:informationSource>
      <epsg:revisionDate>2001-08-15</epsg:revisionDate>
      <epsg:changes>
        <epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2016.032" />
      </epsg:changes>
      <epsg:show>true</epsg:show>
      <epsg:isDeprecated>true</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::1681</gml:identifier>
  <gml:name>OSGB 1936 / British National Grid to WGS 84 (1)</gml:name>
  <gml:remarks>Parameter values taken from OSGB 1936 / British National Grid to ETRS89 (1) (code 1036) assuming that ETRS89 is coincident with WGS 84 within the accuracy of the transformation. Replaced by OSGB 1936 / British National Grid to WGS 84 (2) (code 15956).</gml:remarks>
  <gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1264" />
  <gml:scope>Accuracy 1m.</gml:scope>
  <gml:operationVersion>EPSG-Gbr</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::27700" />
  <gml:targetCRS xlink:href="urn:ogc:def:crs:EPSG::4326" />
  <gml:method xlink:href="urn:ogc:def:method:EPSG::9633" />
  <gml:parameterValue>
    <gml:ParameterValue>
      <gml:valueFile>ostn97.txt</gml:valueFile>
      <gml:operationParameter xlink:href="urn:ogc:def:parameter:EPSG::8664" />
    </gml:ParameterValue>
  </gml:parameterValue>
</gml:Transformation>