Definition: OGP XML
<div class="syntax"><pre><span class="cp"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="nt"><gml:VerticalDatum</span> <span class="na">xmlns:epsg=</span><span class="s">"urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset"</span> <span class="na">xmlns:gml=</span><span class="s">"http://www.opengis.net/gml/3.2"</span> <span class="na">xmlns:xlink=</span><span class="s">"http://www.w3.org/1999/xlink"</span> <span class="na">gml:id=</span><span class="s">"iogp-datum-5147"</span><span class="nt">></span>
<span class="nt"><gml:metaDataProperty></span>
<span class="nt"><epsg:CommonMetaData></span>
<span class="nt"><epsg:type></span>vertical<span class="nt"></epsg:type></span>
<span class="nt"><epsg:informationSource></span>Ordnance Survey of Great Britain.<span class="nt"></epsg:informationSource></span>
<span class="nt"><epsg:revisionDate></span>2016-07-13<span class="nt"></epsg:revisionDate></span>
<span class="nt"><epsg:changes></span>
<span class="nt"><epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:change-request:EPSG::2015.069"</span> <span class="nt">/></span>
<span class="nt"></epsg:changes></span>
<span class="nt"><epsg:show></span>true<span class="nt"></epsg:show></span>
<span class="nt"><epsg:isDeprecated></span>false<span class="nt"></epsg:isDeprecated></span>
<span class="nt"></epsg:CommonMetaData></span>
<span class="nt"></gml:metaDataProperty></span>
<span class="nt"><gml:identifier</span> <span class="na">codeSpace=</span><span class="s">"IOGP"</span><span class="nt">></span>urn:ogc:def:datum:EPSG::5147<span class="nt"></gml:identifier></span>
<span class="nt"><gml:name></span>St Marys<span class="nt"></gml:name></span>
<span class="nt"><gml:remarks></span>Orthometric heights.<span class="nt"></gml:remarks></span>
<span class="nt"><gml:domainOfValidity</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:area:EPSG::2802"</span> <span class="nt">/></span>
<span class="nt"><gml:scope></span>Topographic mapping, geodetic survey.<span class="nt"></gml:scope></span>
<span class="nt"><gml:anchorDefinition></span>Mean Sea Level at St. Marys 1887. Initially realised through levelling network adjustment, from 2002 redefined to be realised through OSGM geoid model.<span class="nt"></gml:anchorDefinition></span>
<span class="nt"></gml:VerticalDatum></span>
</pre></div>
<?xml version="1.0" encoding="UTF-8"?>
<gml:VerticalDatum 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="iogp-datum-5147">
<gml:metaDataProperty>
<epsg:CommonMetaData>
<epsg:type>vertical</epsg:type>
<epsg:informationSource>Ordnance Survey of Great Britain.</epsg:informationSource>
<epsg:revisionDate>2016-07-13</epsg:revisionDate>
<epsg:changes>
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2015.069" />
</epsg:changes>
<epsg:show>true</epsg:show>
<epsg:isDeprecated>false</epsg:isDeprecated>
</epsg:CommonMetaData>
</gml:metaDataProperty>
<gml:identifier codeSpace="IOGP">urn:ogc:def:datum:EPSG::5147</gml:identifier>
<gml:name>St Marys</gml:name>
<gml:remarks>Orthometric heights.</gml:remarks>
<gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::2802" />
<gml:scope>Topographic mapping, geodetic survey.</gml:scope>
<gml:anchorDefinition>Mean Sea Level at St. Marys 1887. Initially realised through levelling network adjustment, from 2002 redefined to be realised through OSGM geoid model.</gml:anchorDefinition>
</gml:VerticalDatum>