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The goal of this effort is to help NASA Data Centers provide full support for the UMM-Collection Profile through the evaluation and reporting of metadata completeness with respect to the UMM-Collection Profile. The following 26 CMR Metadata Collection (18 NASA and 8 OtherIDN) were considered in this evaluation.
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| Concept | %Complete | Completeness Check XPath | Summary/Guidance | Collections Missing Concept |
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Processing Level | 99% | - /*/gmd:contentInfo/*/gmd:processingLevelCode/gmd:MD_Identifier/gmd:code//*
| - The processing level concept is missing in 5 collections and in 41 out of 6367 NASA metadata records.
- A Processing Level value = 'Not provided' is being used in a varying capacity in 6 NASA collections (LANCEMODIS, LAADS, LPDAAC_ECS, LARC, NSIDC_ECS and SEDAC). In these cases we recommend replacing the 'Not Provided' value with @nilReason='unknown'
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Platform Short Name | 97% | - //gmi:platform/*/gmi:identifier/gmd:MD_Identifier/gmd:code//*
| - Platform Short Name is missing in 4 collections and in 207 out of 6367 NASA metadata records.
- Platform Short Name is most commonly missing from SEDAC records. These records may not have a need for Platform documentation
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| Spatial Extent | 95% | - */gmd:identificationInfo/*/gmd:extent/gmd:EX_Extent/gmd:geographicElement//*
| - Spatial Extent is missing in 7 collections and in 333 out of 6367 NASA metadata records.
- Spatial Extent is most commonly missing from the LARC_ASDC records. It appears that 333 out of 606 LARC_ASDC records do not include a geographicElement.
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| Related URL | 94% | - //gmd:MD_DigitalTransferOptions/gmd:onLine/gmd:CI_OnlineResource/gmd:linkage/gmd:URL
- /*/gmd:identificationInfo/*/gmd:graphicOverview/gmd:MD_BrowseGraphic/gmd:fileName//*
- /*/gmd:identificationInfo/*/gmd:graphicOverview/gmd:MD_BrowseGraphic/gmx:fileName//*
| - Related URL is missing in 5 collections and in 408 out of 6367 NASA metadata records.
- Related URL is most commonly missing from the LARC, and LARC_ASDC metadata records. It appears that 91 of 407 LARC records do not include MD_DigitalTransferOptions content and that 297 of 696 LARC_ASDC records do not include MD_DigitalTransferOptions content.
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| Instrument Short Name | 93% | - //gmi:instrument/*/gmi:identifier/gmd:MD_Identifier/gmd:code//*
| - Instrument Short Name is missing in 5 collections and in 420 out of 6367 NASA metadata records.
- Instrument Short Name is most commonly missing from the NSIDCV0 and SEDAC metadata records. It appears that 195 of 784 NSIDCV0 records do not include EOS_Instrument or MI_Instrument content and the majority of SEDAC records do not include EOS_Instrument or MI_Instrument content.
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| Project Name | 73% | - /*/gmd:identificationInfo/*/gmd:aggregationInfo/gmd:MD_AggregateInformation[normalize-space(gmd:associationType/gmd:DS_AssociationTypeCode)='largerWorkCitation' and normalize-space(gmd:initiativeType/gmd:DS_InitiativeTypeCode)='project']/gmd:aggregateDataSetName/gmd:CI_Citation/gmd:title//*
- /*/gmd:identificationInfo/*/gmd:descriptiveKeywords/gmd:MD_Keywords[normalize-space(gmd:type/gmd:MD_KeywordTypeCode)='project']/gmd:keyword//*
- /*/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:operation/gmi:MI_Operation/gmi:citation/gmd:CI_Citation//*
| - Project Name is missing in 11 collections and in 1689 out of 6367 NASA metadata records.
- Project Name is the most commonly missing required UMM-Collection concept.
- The Project Name concept is checked for existence in 3 different metadata sections (Aggregation Info, Place Keyword and Operation.
- Project Name is most commonly found in the MI_Operation object in NASA metadata collections. The UMM-Recommendation view shows the collections that include and are missing this concept as well the concept occurrence count per collection.
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UMM-Collection Required Concepts in
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IDN Metadata Collections
The UMM-Collection profile identifies 15 concepts which that are required for inclusion in CMR metadata collections. Table 2 shows the overall percent completeness of required UMM-Collection concepts in the 8 Other IDN metadata collections considered in this evaluation.
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Table 3 - Percent Completeness in Other IDN Collections
| Required Concept | % Complete |
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| Metadata Dates | 100% |
| Resource Identifier | 100% |
| Resource Version | 100% |
| Resource Title | 100% |
| Abstract | 100% |
| Data Dates | 100% |
| Responsibility | 100% |
| Processing Level | 100% |
| Keyword | 100% |
| Related URL | 100% |
| Spatial Extent | 99% |
| Temporal Extent | 100% |
| Platform Short Name | 100% |
| Instrument Short Name | 60% |
| Project Name | 26% |
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Of the 15 required concepts, 12 concepts are 100% complete in all CMR Other IDN collections, 1 concepts is > 90% complete in all CMR Other IDN collections, 1 concept is 60% complete in all CMR NASA collections, 1 concept is > 20% complete in all CMR Other IDN collections. Table 4 below provides detailed metadata improvement guidance for the 3 required concepts < 100% complete. The concept link in the first column connects to the concept element in the ISO Explorer guidance pages. The chart in the last column shows the collections that are missing the concepts as well as record count. This chart includes a link to a Google Sheets filtered display that shows the records for each collection that are missing the concept. The filtered display column header is bold, and the first two columns in the table show which collection and records are missing the concept.
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Table 4 - Missing Required Concept Guidance (Other IDN Collections)
| Concept | %Complete | Path | Guidance | |
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| Spatial Extent | 99% | - */gmd:identificationInfo/*/gmd:extent/gmd:EX_Extent/gmd:geographicElement//*
| - Spatial Extent is missing in 4 Other IDN collections and in 75 out of 8,702 Other IDN metadata records.
- Spatial Extent is missing in some capacity from JAXA, AU_AADC, NOAA_NCEI and ESA records.
- Each of these collection appear to be missing in small quantities geographicElement content.
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| Instrument Short Name | 60% | - //gmi:instrument/*/gmi:identifier/gmd:MD_Identifier/gmd:code//*
| - Instrument Short Name is missing in 6 Other IDN collections and in 3,490 out of 8,702 Other IDN metadata records.
- Instrument Short Name is is most commonly missing from AU_AADC and NOAA_NCEI collections. It appears that 1,720 of 2,559 AU_DAAC recordes and 1,719 of 5,488 NOAA_NCEI records are missing this concept
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| Project Name | 26% | - /*/gmd:identificationInfo/*/gmd:aggregationInfo/gmd:MD_AggregateInformation[normalize-space(gmd:associationType/gmd:DS_AssociationTypeCode)='largerWorkCitation' and normalize-space(gmd:initiativeType/gmd:DS_InitiativeTypeCode)='project']/gmd:aggregateDataSetName/gmd:CI_Citation/gmd:title//*
- /*/gmd:identificationInfo/*/gmd:descriptiveKeywords/gmd:MD_Keywords[normalize-space(gmd:type/gmd:MD_KeywordTypeCode)='project']/gmd:keyword//*
- /*/gmi:acquisitionInformation/gmi:MI_AcquisitionInformation/gmi:operation/gmi:MI_Operation/gmi:citation/gmd:CI_Citation//*
| - Project Name is missing in 6 IDN collections and in 6,419 out of 8,702 Other IDN metadata records.
- Project Name is the most commonly missing required UMM-Collection concept.
- The Project Name concept is checked for existence in 3 different metadata sections (Aggregation Info, Place Keyword and Operation.
- It appears that the Project Name is most commonly found in the MI_Operation object in Other IDN metadata collections. The UMM-Recommendation view shows the collections that include and are missing this concept, as well the concept occurrence count per collection.
- Project Name is 100% complete in the ISRO metadata collection with documentation occurring in the MD_Operation object.
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