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Element Description

The temporal keyword element describes the temporal resolution of the dataset. The Temporal keywords are chosen from a controlled keyword hierarchy maintained in the Keyword Management System (KMS).

Best Practices

Examples:

TemporalKeywords: "Weekly - < Monthly"

TemporalKeywords: "Subannual"

TemporalKeywords: "Annual Climatology" 

Element Specification

Providing the Temporal Keyword element is optional (Cardinality: 0..*)

ModelElementTypeUsable Valid ValuesConstraintsRequired?Cardinality
UMM-CTemporalKeywordsString

Temporal Data Resolution

KMS controlledNo0..1


Metadata Validation and QA/QC

All metadata entering the CMR goes through the below process to ensure metadata quality requirements are met. All records undergo CMR validation before entering the system. The process of QA/QC is slightly different for NASA and non-NASA data providers. Non-NASA providers include interagency and international data providers and are referred to as the International Directory Network (IDN).

Please see the expandable sections below for flowchart details.


  • Manual Review
    • Identify errors, discrepancies or omissions.
    • Verify that all pertinent keywords have been applied.
    • Verify that existing facets and other controlled keyword values are consistent and suitable for the data.
  • Automated Review
    • Check that the field has been populated.
    • Check that the field is populated with a valid value from KMS.
    • Check that the field value is not a duplicate.
    • Check that the 'Detailed_Variable' field length is not greater than 80 characters.

ARC Priority Matrix

Priority CategorizationJustification

This element is categorized as highest priority when:

  • The element is not included at all.
  • The element is included but is empty.
  • The science keyword does not align with the KMS.
    • The science keyword does not exist in KMS.
    • A keyword(s) is missing from the hierarchy.
  • The Temporal keyword is not appropriate for the dataset.

This element is categorized as medium priority when:

  • A recommendation is made to add a relevant Temporal keyword to the metadata.

Not Applicable


The element is provided and follows all applicable criteria specified in the best practices section above.

ARC Automated Checks

  • Category
    • If no value is provided, return is: "This is a required field. Recommend providing at least one science keyword hierarchy relevant to this data set. This field should contain the Category keyword as specified in the hierarchy (EARTH SCIENCE). Science keywords are GCMD controlled and should be chosen from the following list: https://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csv?ed_wiki_keywords_page"
    • If the provided value is in the incorrect position of the hierarchy, return is: "<provided value> is in the incorrect position of the project keyword hierarchy."
    • If the provided value does not conform to GCMD, return is: "<provided value> does not conform to GCMD."
  • Topic
    • If no value is provided, return is: "This is a required field. Recommend providing at least one science keyword hierarchy relevant to this data set. This field should contain the Topic keyword as specified in the hierarchy. Science keywords are GCMD controlled and should be chosen from the following list: https://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csv?ed_wiki_keywords_page"
    • If the provided value is in the incorrect position of the hierarchy, return is: "<provided value> is in the incorrect position of the project keyword hierarchy."
    • If the provided value does not conform to GCMD, return is: "<provided value> does not conform to GCMD."
  • Term
    • If no value is provided, return is: "This is a required field. Recommend providing at least one science keyword hierarchy relevant to this data set. This field should contain the Term keyword as specified in the hierarchy. Science keywords are GCMD controlled and should be chosen from the following list: https://gcmdservices.gsfc.nasa.gov/static/kms/sciencekeywords/sciencekeywords.csv?ed_wiki_keywords_page"
    • If the provided value is in the incorrect position of the hierarchy, return is: "<provided value> is in the incorrect position of the project keyword hierarchy."
    • If the provided value does not conform to GCMD, return is: "<provided value> does not conform to GCMD."
  • Variable Level 1 - Variable Level 3
    • If no value is provided, return is "np"
    • If the provided value is in the incorrect position of the hierarchy, return is: "<provided value> is in the incorrect position of the project keyword hierarchy."
    • If the provided value does not conform to GCMD, return is: "<provided value> does not conform to GCMD."
  • Detailed Variable
    • If no value is provided, return is "np"
    • If a value is provided, return is "OK"

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Dialect Mappings

DIF 9 (Note: DIF-9 is being phased out and will no longer be supported after 2018)

DIF 10

Providing the Temporal Keyword element is optional (Cardinality: 0..1)

SpecificationPathTypeUsable Valid ValuesConstraintsRequired in DIF 10?Cardinality
DIF 10Temporal_Coverage/Temporal_Info/Ancillary_Temporal_KeywordStringTemporal Data ResolutionKMS controlledNo0..1



Example Mapping

DIF 10

<Temporal_Coverage>
  <Temporal_Info>
    <Ancillary_Temporal_Keywords>Daily Climatology</Ancillary_Temporal_Keywords>
  </Temporal_Info>
</Temporal_Coverage>

UMM

"ScienceKeywords": [
  "Daily Climatology",
],

ECHO 10

Providing the Temporal Keyword element is optional (Cardinality: 0..1)

SpecificationPathTypeUsable Valid ValuesConstraintsRequired in ECHO10?Cardinality
ECHO 10TemporalKeywords/KeywordStringTemporal Data Resolution

KMS controlled

Yes1


Example Mapping

ECHO 10

<Temporal_Coverage>
  <Keyword>Daily Climatology</Keyword>
</Temporal_Coverage>

UMM

"ScienceKeywords": [
  "Daily Climatology",
],



ISO 19115-2 MENDS

An unlimited amount of science keywords may be listed (Cardinality: 1..*)

SpecificationPathTypeNotes
ISO 19115-2 MENDS

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/ gmd:keyword/gco:CharacterString  (list each value of the keyword hierarchy delimited by &gt; )

String


KMS controlled. This is where the entire keyword hierarchy should be listed. Each keyword in the hierarchy must be separated by "&gt;". If any keyword is missing and there exists a keyword later in the hierarchy (such as DetailedLocation), use NONE to fill in the values in between. The CMR will not translate the NONE values they are only used to place each keyword in its correct space in the hierarchy.


/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/ gmd:keyword/gmd:type/MD_KeywordTypeCode[@codeListValue="theme"]
Codelist

codeList=https://cdn.earthdata.nasa.gov/iso/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode

Select the value "theme" from the codelist. This codelist value does not directly map to a UMM element; choosing "theme" indicates to CMR that the Science Keywords should be mapped.



Example Mapping

ISO 19115-2 MENDS

ADD EXAMPLE

UMM

"ScienceKeywords": [
  "Daily Climatology",
],



ISO 19115-2 SMAP

An unlimited amount of science keywords may be listed (Cardinality: 1..*)

SpecificationPathTypeNotes
ISO 19115-2 SMAP

/gmd:DS_Series/gmd:seriesMetadata/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/ gmd:MD_Keywords/gmd:keyword/gco:CharacterString  (list each value of the keyword hierarchy delimited by &gt; )

StringKMS controlled. This is where the entire keyword hierarchy should be listed. Each keyword in the hierarchy must be separated by "&gt;". If any keyword is missing and there exists a keyword later in the hierarchy (such as DetailedLocation), use NONE to fill in the values in between. The CMR will not translate the NONE values they are only used to place each keyword in its correct space in the hierarchy.
ISO 19115-2 SMAP/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/ gmd:type/MD_KeywordTypeCode[@codeListValue="theme"]Codelist

codeList=https://cdn.earthdata.nasa.gov/iso/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode

Select the value "theme" from the codelist. This codelist value does not directly map to a UMM element; choosing "theme" indicates to CMR that the Science Keywords should be mapped.


Example Mapping

ISO 19115-2 SMAP

ADD EXAMPLE

UMM

"ScienceKeywords": [
  "Daily Climatology",
],



UMM Migration

None


Future Mappings

ISO 19115-1

SpecificationPathTypeNotes
ISO 19115-1

/mdb:MD_Metadata/mdb:identificationInfo/mri:MD_DataIdentification/mri:descriptiveKeywords/

mri:MD_Keywords/mri:keyword/gco:CharacterString

(list each value of the keyword hierarchy delimited by &gt; )

StringKMS controlled. This is where the entire keyword hierarchy should be listed. Each keyword in the hierarchy must be separated by "&gt;". If any keyword is missing and there exists a keyword later in the hierarchy (such as DetailedLocation), use NONE to fill in the values in between. The CMR will not translate the NONE values they are only used to place each keyword in its correct space in the hierarchy.
ISO 19115-1

/mdb:MD_Metadata/mdb:identificationInfo/mri:MD_DataIdentification/mri:descriptiveKeywords/

mri:MD_Keywords/mri:keyword/mri:type/mri:MD_KeywordTypeCode[@codeListValue="theme"]

Codelist

codeList=http://standards.iso.org/iso/19115/resources/Codelist/cat/codelists.xml#MD_KeywordTypeCode

Select the value "theme" from the codelist. This codelist value does not directly map to a UMM element; choosing "theme" indicates to CMR that the Science Keywords should be mapped.

ISO 19115-1

ADD EXAMPLE

UMM

"ScienceKeywords": [
  "Daily Climatology",
],

History

UMM Versioning

VersionDateWhat Changed
1.0.0
Initial Release

ARC Documentation

VersionDateWhat ChangedAuthor
1.05/4/18Recommendations/priority matrix transferred from internal ARC documentation to wiki space

Jeanne' le Roux




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