  <gmd:MD_Keywords xmlns:gco="http://www.isotc211.org/2005/gco" xmlns:gmd="http://www.isotc211.org/2005/gmd" xmlns:gmi="http://www.isotc211.org/2005/gmi" xmlns:xlink="http://www.w3.org/1999/xlink" uuid="51ead96b-ce32-47f1-aeb8-d0e6988a8c02">
    <gmd:keyword>
      <gco:CharacterString>None</gco:CharacterString>
    </gmd:keyword>
    <gmd:type>
      <gmd:MD_KeywordTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="instrument"/>
    </gmd:type>
    <gmd:thesaurusName xlink:href="https://www.ngdc.noaa.gov/docucomp/82A5DD195658CBECE040AC8C5AB41A40" xlink:title="Instrument Keywords Thesaurus"/>
  </gmd:MD_Keywords>