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Table of Contents
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Element Description

Spatial Extent-Track is a recently added element that will be assigned at the granule level only. The first campaign that will use this element will be the Surface Water and Ocean Topography, or SWOT, mission managed by PO.DAAC. It will then be expanded to other future projects.  


Best Practices

In an effort to make searching for data easier, granules will eventually have the ability to be searched by their orbit information using the following terms: cycle, pass, and tiles. A cycle will encompass data from 1 full day of orbits while a pass will only provide data from a half-orbit. A set of tiles make up a pass, where a tile is defined as a 64 km x 64 km square to the left and right of the ground track, make up a pass.   

Examples:



Element Specification

... Spatial Extent-Track is required (Cardinality: 0..*)

ModelElementTypeConstraintsRequired?Cardinality
UMM-GSpatialExtent/TrackString

N/A

NoYes10..*



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).

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Please see the expandable sections below for flowchart details.


Expand
titleGCMD Metadata QA/QC
  • Manual Review
  • Automated Review
Expand
titleCMR Validation

<>

Expand
titleARC Metadata QA/QC

ARC Priority Matrix

Priority CategorizationJustification

This element is categorized as highest priority when:

  • The Spatial Extent-Track is not provided.
  • The Spatial Extent-Track does not comply with the ISO 8601 Standard.

Not Applicable


Not Applicable


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

ARC Automated Rules

Dialect Mappings

Expand
titleECHO 10

ECHO 10

Production Date Time is required for ECHO 10.

SpecificationPathTypeConstraintsRequired in ECHO10?Cardinality
ECHO 10GranuleLocalitySpatialExtent/Locality ValueTrackString

N/A

Yes1


Example Mapping

Section
Column
width50%

ECHO 10

No Format
<LocalityValue>Global<<Track>Pass</LocalityValue>Track>
Column
width50%

UMM

No Format
"DataGranule": {
  "Granule LocalityTrack" : "GlobalCycle"
}
Expand
titleISO 19115-2 MENDS

ISO 19115-2 MENDS

The path where Granule Locality is provided in ISO is optional, however, a Granule Locality is required for all CMR granule metadata (Cardinality: 0..1)Spatial Extent-Track currently does not map to ISO 19115-2 MENDS.

SpecificationPathTypeNotes
ISO 19115-2 MENDS

/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString
/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gmd:type/gmd:MD_KeywordTypeCode codeList="https://cdn.earthdata.nasa.gov/iso/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place" = place

String

N/A

String

N/AMaps to the UMM element "GranuleLocalities"


Example Mapping

Section
Column
width50%

ISO 19115-2 MENDS

No Format
<gmi:MI_Metadata>
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
                <gco:CharacterString>Granule Localities</gco:CharacterString>
              </gmd:description>
                <gco:String>Global</gco:String>
              </gmd:keyword>
            </gmd:MD_Keywords>
          </gmd:descriptiveKeywords>
        </gmd:MD_DataIdentification>
      </gmd:identificationInfo>
    </gmi:MI_Metadata>
 N/A
Column
width50%

UMM

No Format
"DataGranule": {
  "Granule LocalityTrack" : "GlobalCycle"
}
Expand
titleISO 19115-2 SMAP

ISO 19115-2 SMAP

Granule Locality Spatial Extent-Track currently does not map to ISO 19115-2 SMAP.

SpecificationPathTypeNotes
ISO 19115-2 SMAP

N/A

N/A

N/A


Example Mapping

Section
Column
width50%

ISO 19115-2 SMAP

No Format
N/A
Column
width50%

UMM

No Format
"DataGranule": {
  "Granule LocalityTrack" : "GlobalCycle"
}

UMM Migration

UMM Version 1.4.0Translation DirectionUMM Version 1.5.0



Future Mappings

Expand
titleISO 19115-1

ISO 19115-1

Spatial Extent-Track currently does not map to ISO 19115-1.

SpecificationPathTypeNotes
ISO 19115-1

N/A

N/A

N/A


Example Mapping

Section
Column
width50%

ISO 19115-1

No Format
N/A
Column
width50%

UMM

No Format
"DataGranule": {
  "Granule LocalityTrack" : "2009-12-14T00:00:00ZCycle"
}

History

UMM Versioning

VersionDateWhat Changed
1.5.001/30/2019No changes were made for Spatial Extent-Track during the transition from version 1.4.0 to 1.5.0.
1.4.008/01/2018No changes were made for Spatial Extent-Track during the transition from version 1.3.0 to 1.4.0.

ARC Documentation

VersionDateWhat ChangedAuthor
1.002/15/2019Recommendations/priority matrix transferred from internal ARC documentation to wiki space

Camille Woods

Jeanne' le Roux