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I want to add keywords to my metadata to enable potential users to easily discovery my data set or service. |
Keywords are words or phrases that describe the metadata resource. They facilitate search, indexing and discovery of metadata, and are the largest single component of many metadata collections, regardless of the dialect.
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<gmd:MD_Keywords>
<gmd:keyword>
<gco:CharacterString>Alaska Satellite Facility</gco:CharacterString>
</gmd:keyword>
<gmd:type>
<gmd:MD_KeywordTypeCode codeList="http://www.ngdc.noaa.gov/metadata/published/xsd/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode"codeListValue="dataCenter">dataCenter</gmd:MD_KeywordTypeCode>
</gmd:type>
<gmd:thesaurusName>
<gmd:CI_Citation>
<gmd:title>
<gco:CharacterString>NASA/Global Change Master Directory (GCMD) Data Center Keywords</gco:CharacterString>
</gmd:title>
<gmd:date>
<gmd:CI_Date>
<gmd:date>
<gco:Date>2008-02-07</gco:Date>
</gmd:date>
<gmd:dateType>
<gmd:CI_DateTypeCode codeList="http://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#CI_DateTypeCode" codeListValue="publication">publication</gmd:CI_DateTypeCode>
</gmd:dateType>
</gmd:CI_Date>
</gmd:date>
<gmd:identifier />
</gmd:CI_Citation>
</gmd:thesaurusName>
</gmd:MD_Keywords>
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Where are MD_Keyword objects?
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The table below reflects the Mends keyword vote item. The mapping of the ECHO keywords to their ISO equivalents are detailed in the Table below. In the case of some of the ECHO attributes, they also map to other ISO fields but this is not part of the vote e.g. Platform/LongName is also described under the EOS extension to acquisition information.
ECHO Source | ISO Xpath (with Keyword Type Code) |
/*/ScienceKeywords/ScienceKeyword/CategoryKeyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='theme']/gmd:keyword/gco:CharacterString |
/*/ScienceKeywords/ScienceKeyword/TopicKeyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='theme']/gmd:keyword/gco:CharacterString |
/*/ScienceKeywords/ScienceKeyword/TermKeyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='theme']/gmd:keyword/gco:CharacterString |
/*/ScienceKeywords/ScienceKeyword/VariableLevelKeyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='theme']/gmd:keyword/gco:CharacterString |
/*/ScienceKeywords/ScienceKeyword/DetailedVariableKeyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='theme']/gmd:keyword/gco:CharacterString |
/*/SpatialKeywords/Keyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='place']/gmd:keyword/gco:CharacterString |
/*/TemporalKeywords/Keyword | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='temporal']/gmd:keyword/gco:CharacterString |
/*/ArchiveCenter | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='dataCenter']/gmd:keyword/gco:CharacterString |
/*/Campaigns/Campaign/ShortName > /*/Campaigns/Campaign/LongName | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='project']/gmd:keyword/gco:CharacterString |
/*/Platforms/Platform/ShortName > /*/Platforms/Platform/LongName | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString |
/*/Platforms/Platform/Instruments/Instrument/ShortName > | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords[gmd:type/gmd:MD_KeywordTypeCode='instrument']/gmd:keyword/gco:CharacterString |
/*/Platforms/Platform/Instruments/Instrument/LongName | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString |