<gmd:MD_Keywords
  xmlns:gmd="http://www.isotc211.org/2005/gmd"
  xmlns:gmx="http://www.isotc211.org/2005/gmx"
  xmlns:gco="http://www.isotc211.org/2005/gco"
  xmlns:xlink="http://www.w3.org/1999/xlink">
  <gmd:keyword>
    <gmx:Anchor xlink:href="http://www.wmo-sat.info/oscar/variables/view/108"
    >O3</gmx:Anchor>
  </gmd:keyword>
  <gmd:type>
    <gmd:MD_KeywordTypeCode
      codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#MD_KeywordTypeCode"
      codeListValue="theme"
    >theme</gmd:MD_KeywordTypeCode>
  </gmd:type>
  <gmd:thesaurusName>
    <gmd:CI_Citation>
      <gmd:title>
        <gmx:Anchor xlink:href="http://www.wmo-sat.info/oscar/variables"
	>Variables table, OSCAR/Requirements</gmx:Anchor>
      </gmd:title>
      <gmd:date>
        <gmd:CI_Date>
	  <gmd:date><gco:Date>2012</gco:Date></gmd:date>
	  <gmd:dateType>
	    <gmd:CI_DateTypeCode
	      codeList="http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_19139_Schemas/resources/codelist/gmxCodelists.xml#CI_DateTypeCode"
	      codeListValue="revision"
	    >revision</gmd:CI_DateTypeCode>
	  </gmd:dateType>
        </gmd:CI_Date>
      </gmd:date>
    </gmd:CI_Citation>
  </gmd:thesaurusName>
</gmd:MD_Keywords>