Definition: OGP XML
<div class="syntax"><pre><span class="cp"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="nt"><gml:GeodeticDatum</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">"epsg-datum-6135"</span><span class="nt">></span>
<span class="nt"><gml:metaDataProperty></span>
<span class="nt"><epsg:CommonMetaData></span>
<span class="nt"><epsg:type></span>geodetic<span class="nt"></epsg:type></span>
<span class="nt"><epsg:informationSource></span>http://www.ngs.noaa.gov/ (NADCON readme file).<span class="nt"></epsg:informationSource></span>
<span class="nt"><epsg:revisionDate></span>2008-06-24<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::2005.460"</span> <span class="nt">/></span>
<span class="nt"><epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:change-request:EPSG::2008.045"</span> <span class="nt">/></span>
<span class="nt"></epsg:changes></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">"OGP"</span><span class="nt">></span>urn:ogc:def:datum:EPSG::6135<span class="nt"></gml:identifier></span>
<span class="nt"><gml:name></span>Old Hawaiian<span class="nt"></gml:name></span>
<span class="nt"><gml:remarks></span>Hawaiian Islands were never on NAD27 but rather on Old Hawaiian Datum. NADCON conversion program provides transformation from Old Hawaiian Datum to NAD83 (original 1986 realization) but making the transformation appear to user as if from NAD27.<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::1334"</span> <span class="nt">/></span>
<span class="nt"><gml:scope></span>Topographic mapping.<span class="nt"></gml:scope></span>
<span class="nt"><gml:anchorDefinition></span>Fundamental point: Oahu West Base Astro. Latitude: 21°18'13.89"N, longitude 157°50'55.79"W (of Greenwich)<span class="nt"></gml:anchorDefinition></span>
<span class="nt"><gml:primeMeridian</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:meridian:EPSG::8901"</span> <span class="nt">/></span>
<span class="nt"><gml:ellipsoid</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:ellipsoid:EPSG::7008"</span> <span class="nt">/></span>
<span class="nt"></gml:GeodeticDatum></span>
</pre></div>
<?xml version="1.0" encoding="UTF-8"?>
<gml:GeodeticDatum 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-datum-6135">
<gml:metaDataProperty>
<epsg:CommonMetaData>
<epsg:type>geodetic</epsg:type>
<epsg:informationSource>http://www.ngs.noaa.gov/ (NADCON readme file).</epsg:informationSource>
<epsg:revisionDate>2008-06-24</epsg:revisionDate>
<epsg:changes>
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2005.460" />
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2008.045" />
</epsg:changes>
<epsg:isDeprecated>false</epsg:isDeprecated>
</epsg:CommonMetaData>
</gml:metaDataProperty>
<gml:identifier codeSpace="OGP">urn:ogc:def:datum:EPSG::6135</gml:identifier>
<gml:name>Old Hawaiian</gml:name>
<gml:remarks>Hawaiian Islands were never on NAD27 but rather on Old Hawaiian Datum. NADCON conversion program provides transformation from Old Hawaiian Datum to NAD83 (original 1986 realization) but making the transformation appear to user as if from NAD27.</gml:remarks>
<gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1334" />
<gml:scope>Topographic mapping.</gml:scope>
<gml:anchorDefinition>Fundamental point: Oahu West Base Astro. Latitude: 21°18'13.89"N, longitude 157°50'55.79"W (of Greenwich)</gml:anchorDefinition>
<gml:primeMeridian xlink:href="urn:ogc:def:meridian:EPSG::8901" />
<gml:ellipsoid xlink:href="urn:ogc:def:ellipsoid:EPSG::7008" />
</gml:GeodeticDatum>