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Element Description
The Ancillary Keywords element allows metadata authors to provide words or phrases beyond the controlled Science Keyword vocabulary, to further describe the the collection.
Best Practices
The Ancillary Keywords element is optional. It can be leveraged to provide additional keywords to describe the collection that are not already reflected in other.
Examples:
"To assess species composition, abundance, distribution and biomass of zooplankton within the Bering and Chukchi Seas , 1985-1989."
"To provide VIIRS 375m resolution active fire locations in Near Real-Time in easy to use formats."
"To serve a wide user community by providing composite Landsat images and raw data for urban areas that can be used in interdisciplinary studies of remote sensing and the environment."
Element Specification
Model | Element | Type | Constraints | Required? | Cardinality |
---|
UMM-C | Purpose | String | 1 - 10000 characters | No | 0..1 |
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.
GCMD Metadata QA/QC
- Manual Review
- Check that the purpose description is appropriate for the data set
- Automated Review
- Check that the field has been populated
- Check that the field length is not greater than 1000 characters
ARC Metadata QA/QC
ARC Priority Matrix
Priority Categorization | Justification |
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| This element is categorized as highest priority when: - The purpose contains spelling or grammatical errors
- The purpose is incorrect for the data (for example, a copy + paste error could result in the purpose for a different data set to appear in this field)
- A broken URL is provided in the purpose element
|
| This element is categorized as medium priority when: - The information provided in the purpose element is better suited for a different metadata field (i.e. incorrect usage of the purpose field)
|
| This element is categorized as low priority when: - A link provided in the purpose element needs to be updated from 'http' to 'https'
|
| The element is provided, and follows all applicable criteria specified in the best practices section above. |
ARC Automated Rules
- If no value is provided, return is "np"
- Otherwise, return is "OK"
DIF 9
DIF 9 (Note: DIF-9 is being phased out and will no longer be supported after 2018)
DIF 10
DIF 10
Specification | Path | Type | Constraints | Required in DIF 10? | Cardinality |
---|
DIF 10 | Summary/Purpose | String | 1 - 1000 characters | No | 0..1 |
Example Mapping
ECHO 10
ECHO 10
Specification | Path | Type | Constraints | Required in ECHO10? | Cardinality | Notes |
---|
ECHO 10 | SuggestedUsage | String | 1 - 4000 characters | No | 0..1 | The ECHO 10 schema definition for Suggested Usage: "This attribute describes how this collection or granule may be best used to support Earth science/global change research." |
Example Mapping
ISO 19115-2 MENDS
ISO 19115-2 MENDS
Specification | Path | Type | Notes |
---|
ISO 19115-2 MENDS | /gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:purpose/gco:CharacterString | String | Maps to the UMM element Purpose |
Example Mapping
ISO 19115-2 SMAP
ISO 19115-2 SMAP
Specification | Path | Type | Notes |
---|
ISO 19115-2 SMAP
| /gmd:DS_Series/gmd:seriesMetadata/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:purpose/gco:CharacterString | String | Maps to the UMM element Purpose |
Example Mapping
UMM Migration
UMM Version 1.9.0 | Translation Direction | UMM Version 1.10.0 |
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ISO 19115-1
ISO 19115-1
Specification | Path | Type | Notes |
---|
ISO 19115-1
| /mdb:MD_Metadata/mdb:identificationInfo/mri:MD_DataIdentification/mri:purpose/gco:CharacterString | String | Maps to the UMM element Purpose |
Example Mapping
History
UMM Versioning
Version | Date | What Changed |
---|
1.10.0 | 5/2/2018 | No changes were made for Purpose during the transition from version 1.9.0 to 1.10.0 |
1 |
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ARC Documentation
Version | Date | What Changed | Author |
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1.0 | 10/5/18 | Recommendations/priority matrix transferred from internal ARC documentation to wiki space | Jeanne' le Roux |