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Overview

Keywords are the largest single component of many metadata collections, regardless of the dialect. Using common types to classify these keywords is critical for consistent discovery, particularly using faceted searches. Shared vocabularies that include these new types are important contributor to consistent, interoperable meadata. The keyword types in italics are supported by NASA Global Change Master Directory (GCMD) and used in many existing metadata collections.

ECHO to ISO Keyword Mapping

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
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