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Element Description

The Identifier element holds different types of granule identifiers. 


Best Practices

There are three sub-elements that comprise the Data Granule Identifiers:

  • Identifier Type: The value for this field must be selected from a list of known identifier types. If the identifier is not included in the list, the enumeration value of '"Other' " may be selected, and the provider must specify the identifier's name. Available identifiers include:
    • ProducerGranuleId
    • LocalVersionId
    • FeatureId
    • CRID
    • Other - select '"Other' " to provide an identifier not included in the list
  • Identifier: The identifier value, e. E.g. the CRID value, FeatureId value, etc.
  • Identifier Name: The name of the identifier. This field should only be populated if 'Other' is selected as the identifier type. 


Examples:

Identifier Type: "ProducerGranuleId"

Identifier: "MERRA300.prod.assim.tavgU_3d_udt_Cp.200909.hdf"


Identifier Type: "CRID"

Identifier: "R16010"


Identifier Type: "Other"

Identifier: "2013_GR_NASA"

IdentifierName: "ThemeId"


Element Specification

Providing an Identifier is optional. More than 1 different type of identifier may be provided, but each type may only be used once (e.g. only one FeatureId may be provided, only one CRID may be provided, etc.) (Cardinality: 0..1).

ModelElementTypeUsable Valid ValuesConstraintsRequired?CardinalityNotes
UMM-GDataGranule/Identifiers/IdentifierTypeEnumeration

ProducerGranuleId

LocalVersionId

FeatureId

CRID

Other

n/a

Yes, if applicable1

Multiple Identifier Types may be provided, but each enumeration can only be used once in a granule record.

UMM-GDataGranule/Identifiers/IdentifierStringn/a1 - 1024 charactersYes, if applicable1The actual value of the Identifier (e.g. the CRID value, FeatureId value, etc.)
UMM-GDataGranule/Identifiers/IdentifierNameStringn/a1 - 1024 charactersOnly required if "Other" is selected as the IdentifierType0..1If "Other" is selected as the IdentifierType, then this field must be used to provide a name for the identifier.

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 inter-agency and international data providers and are referred to as the International Directory Network (IDN).

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Please see the expandable sections below for flowchart details.


Expand
titleCMR Validation

<>

Expand
titleARC Metadata QA/QC

ARC Priority Matrix

Priority CategorizationJustification

This element is categorized as highest priority when:

  • An invalid identifier type is provided
  • Required fields are left blank
  • The 'Identifier Name' is left blank when the Identifier Type = '"Other'"
  • The information provided is incorrect for the granule

This element is categorized as medium priority when:

  • N/A

This element is categorized as low priority when:

  • N/A

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

ARC Automated Rules

  • TBD

Dialect Mappings

Expand
titleECHO 10

ECHO 10

Providing a Producer Granule Id or Local Version Id is optional in ECHO 10.

There are not special fields in ECHO 10 for CRID, FeatureId, or '"Other' " IDs. It is recommended that other types of granule identifiers be provided in the Additional Attributes metadata element in ECHO 10.

UMM-G ElementECHO 10 PathTypeConstraintsRequired in ECHO10?CardinalityNotes

DataGranule/Identifiers/IdentifierType = "ProducerGranuleId"

&

DataGranule/Identifiers/Identifier

DataGranule/ProducerGranuleIdString

1 - 128 characters

No0..1

Unique identifier for locally produced granule that ECS ingests and is required to capture.

DataGranule/Identifiers/IdentifierType = "LocalVersionId"

&

DataGranule/Identifiers/Identifier

DataGranule/LocalVersionIdString1 - 80 charactersNo0..1

Granule version identifier for PGE defined granule defined by the producer.


Example Mapping

Section
Column
width50%

ECHO 10

No Format
<DataGranule>
  <ProducerGranuleId>IDCSI4_20130424.txt</ProducerGranuleId>
  <LocalVersionId>002</LocalVersionId> 
</DataGranule>
Column
width50%

UMM

No Format
"DataGranule": {
  "Identifiers": [
    {
      "IdentifierType": "ProducerGranuleId",
      "Identifier": "IDCSI4_20130424.txt"
    },
    {
      "IdentifierType": "LocalVersionId",
      "Identifier": "002"
    }
  ]
}
Expand
titleISO 19115-2 MENDS

ISO 19115-2 MENDS

Providing Identifiers is optional in ISO (Cardinality: 0..1)

UMM-G ElementISO PathTypeNotes
DataGranule/Identifiers/IdentifierType

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:identifier/gmd:MD_Identifier [=>
[=>/gmd:codeSpace/gco:CharacterString = gov.nasa.esdis.umm.producergranuleid

OR gov.nasa.esdis.umm.localversionid

OR gov.nasa.esdis.umm.featureid

OR gov.nasa.esdis.umm.crid

OR gov.nasa.esdis.umm.otherid

String

Provide the appropriate esdis identifier (see options to the left in blue) in the gmd:codeSpace field. This will ensure the appropriate identifier type is selected when converting from ISO to the UMM.

DataGranule/Identifiers/Identifier


/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:identifier/gmd:MD_Identifier [=>
[=>/gmd:code/gco:CharacterString = {the actual ID}

String

Provide the Identifier value in the gmd:code field.

DataGranule/Identifiers/IdentifierType

OR

DataGranule/Identifiers/IdentifierName (if 'OtherId' is used)

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:identifier/gmd:MD_Identifier [=>
[=>/gmd:aggregateDataSetIdentifier/gmd:MD_Identifier/gmd:description/gco:CharacterString = ProducerGranuleId

OR LocalVersionId

OR FeatureId

OR CRID

OR OtherId: {insert the identifiers name}

String

Provide the appropriate identifier name (see options to the left in blue) in the gmd:description field. This will ensure the appropriate identifier type is selected when converting from ISO to the UMM.

If the type of '"Other' " is selected, the value provided here will be mapped to the UMM field "Identifier Name". For example, the below string would translate to an Identifier Name of "ThemeId" in CMR:

<gmd:description>

<gco:CharacterString>OtherId: ThemeId</gco:CharacterString>

</gmd:description>


Example Mapping

Section
Column
width50%

ISO 19115-2 MENDS

No Format
<gmi:MI_Metadata>
  ...
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
     ...
      <gmd:citation>
        <gmd:CI_Citation>
         ...
          <gmd:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>IDCSI4_20130424.txt</gco:CharacterString>
              </gmd:code>
              <gmd:codeSpace>
                <gco:CharacterString>gov.nasa.esdis.umm.producergranuleid</gco:CharacterString>
              </gmd:codeSpace>
              <gmd:aggregateDataSetIdentifier>
                <gmd:MD_Identifier>
                  <gmd:description>
                    <gco:CharacterString>ProducerGranuleId</gco:CharacterString>
                  </gmd:description>
                </gmd:MD_Identifier>
              </gmd:aggregateDataSetIdentifier>
            </gmd:MD_Identifier>
          </gmd:identifier>
          <gmd:identifier>
            <gmd:MD_Identifier>
              <gmd:code>
                <gco:CharacterString>002</gco:CharacterString>
              </gmd:code>
              <gmd:codeSpace>
                <gco:CharacterString>gov.nasa.esdis.umm.localversionid</gco:CharacterString>
              </gmd:codeSpace>
              <gmd:aggregateDataSetIdentifier>
                <gmd:MD_Identifier>
                  <gmd:description>
                    <gco:CharacterString>LocalVersionId</gco:CharacterString>
                  </gmd:description>
                </gmd:MD_Identifier>
              </gmd:aggregateDataSetIdentifier>
            </gmd:MD_Identifier>
          </gmd:identifier>
         ...
        </gmd:CI_Citation>
      </gmd:citation>
     ...
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
  ...
</gmi:MI_Metadata>
Column
width50%

UMM

No Format
"DataGranule": {
  "Identifiers": [
    {
      "IdentifierType": "ProducerGranuleId",
      "Identifier": "IDCSI4_20130424.txt"
    },
    {
      "IdentifierType": "LocalVersionId",
      "Identifier": "002"
    }
  ]
}
Expand
titleISO 19115-2 SMAP

ISO 19115-2 SMAP

Providing Identifiers is optional in ISO (Cardinality: 0..1)

Producer Granule Id is the only type of identifier currently supported in the ISO SMAP dialect.

UMM-G ElementISO PathTypeNotes

DataGranule/Identifiers/IdentifierType = "ProducerGranuleId"

&

DataGranule/Identifiers/Identifier

/gmd:DS_Series/gmd:composedOf/gmd:DS_DataSet/gmd:has/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:citation/gmd:CI_Citation/gmd:title/gmx:FileName

String

Maps to the UMM element "Identifier" with Type "ProducerGranuleId"


Example Mapping

Section
Column
width50%

ISO 19115-2 SMAP

No Format
<gmd:DS_Series>
  <gmd:composedOf>
    <gmd:DS_DataSet>
      <gmd:has>
        <gmi:MI_Metadata>
          <gmd:identificationInfo>
            <gmd:MD_DataIdentification>
              <gmd:citation>
                <gmd:CI_Citation>
                  <gmd:title>
                    <gmx:FileName>IDCSI4_20130424.txt</IDCSI4_20130424.txt>
                  </gmd:title>
                </gmd:CI_Citation>
              </gmd:citation>
            </gmd:MD_DataIdentification>
          </gmd:identificationInfo>
        </gmi:MI_Metadata>
      </gmd:has>
    </gmd:DS_DataSet>
  </gmd:composedOf>
</gmd:DS_Series>
Column
width50%

UMM

No Format
"DataGranule": {
  "Identifiers": [
    {
      "IdentifierType": "ProducerGranuleId",
      "Identifier": "IDCSI4_20130424.txt"
    }
  ]
}

UMM Migration

UMM Version 1.4.0Translation DirectionUMM Version 1.5.0



Excerpt
hiddentrue

Future Mappings

Expand
titleISO 19115-1

ISO 19115-1

Identifiers does not map to ISO 19115-1.

SpecificationPathTypeNotes
ISO 19115-1

N/A

N/A

Identifiers does not map to ISO 19115-1.


Example Mapping

Section
Column
width50%

ISO 19115-1

No Format
N/A
Column
width50%

UMM

No Format
N/A

History

UMM Versioning

VersionDateWhat Changed
1.6.011/4/2019Increase the length of Identifiers/Identifier and Identifiers/IdentifierName to 1024
1.5.001/30/2019

No changes were made for Identifiers during the transition from version 1.4.0 to 1.5.0.

1.4.0

ARC Documentation

VersionDateWhat ChangedAuthor
1.002/13/19

Recommendations/priority matrix transferred from internal ARC documentation to wiki space