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Element Description

The Paleo Temporal Coverage element defines the time period for geologic and/or paleoclimate data. The element is predominantly used for data samples that originated prior to 01-01-0001. 

Best Practices

Paleo Temporal Coverage tags identify time periods where geologic and paleoclimate data collection occurred. The time period tags can be used to identify the start and end dates for data collection. There is also the option to provide the names of the eon, era, period, epoch and stage associated with the data collection. It is suggested that Paleo Temporal Coverage tags are as specific as possible to aid in data discovery. The names of eons, eras, periods, epochs and stages must be selected from a controlled vocabulary list managed by the Keyword Management System (KMS). Because the tags are KMS controlled, if a specific tag is not already included in the KMS, a request to have it added can be made through the GCMD Keywords Community Forum.

It is important to note that even if Paleo Temporal Coverage metadata is provided, it is still required that a Temporal Extent be provided in addition. Please see the Temporal Extent wiki page for details.  

Examples:

PaleoTemporalCoverage/StartDate: "560 ka"

PaleoTemporalCoverage/EndDate: "60 ka"

PaleoTemporalCoverage/ChronostratigraphicUnit/Eon: "PHANEROZOIC"

PaleoTemporalCoverage/ChronostratigraphicUnit/Era: "CENOZOIC"

PaleoTemporalCoverage/ChronostratigraphicUnit/Period: "QUATERNARY"

PaleoTemporalCoverage/ChronostratigraphicUnit/Epoch: "PLEISTOCENE"

PaleoTemporalCoverage/ChronostratigraphicUnit/Stage: "LATE"


PaleoTemporalCoverage/StartDate: "175 myr"

PaleoTemporalCoverage/EndDate: "160 myr"

PaleoTemporalCoverage/ChronostratigraphicUnit/Eon: "PHANEROZOIC"

PaleoTemporalCoverage/ChronostratigraphicUnit/Era: "MESOZOIC"

PaleoTemporalCoverage/ChronostratigraphicUnit/Period: "JURASSIC"


PaleoTemporalCoverage/StartDate: "100 ka"

PaleoTemporalCoverage/EndDate: "20 ka"

PaleoTemporalCoverage/ChronostratigraphicUnit/Eon: "PHANEROZOIC"


Element Specification

Paleo Temporal Coverage is an optional metadata element, and should only be provided if it is applicable to the dataset. The Paleo Temporal Coverage element may not be repeated (Cardinality: 0..1).

ModelElementTypeUsable Valid ValuesConstraintsRequired?CardinalityNotes
UMM-CPaleoTemporalCoverage/PaleoStartDateStringn/a1 - 80 charactersNo0..1Provide a date unit for the start and end date (e.g. myr, ka, mya, B.C., etc.).
UMM-CPaleoTemporalCoverage/PaleoEndDateStringn/a1 - 80 charactersNo0..1Provide a date unit for the start and end date (e.g. myr, ka, mya, B.C., etc.)
UMM-CPaleoTemporalCoverage/ChronostratigraphicUnits/EonString

GCMD Chronostratigraphic Unit Eon Keywords

KMS controlledYes, if applicable1Providing Chronostratigraphic Units are optional. If included, the Eon must be provided at a minimum.
UMM-CPaleoTemporalCoverage/ChronostratigraphicUnits/EraString

GCMD Chronostratigraphic Unit Era Keywords

KMS controlledNo0..1
UMM-CPaleoTemporalCoverage/ChronostratigraphicUnits/PeriodString

GCMD Chronostratigraphic Unit Period Keywords

KMS controlledNo0..1
UMM-CPaleoTemporalCoverage/ChronostratigraphicUnits/EpochString

GCMD Chronostratigraphic Unit Epoch Keywords

KMS controlledNo0..1
UMM-CPaleoTemporalCoverage/ChronostratigraphicUnits/StageString

GCMD Chronostratigraphic Unit Stage Keywords

KMS controlledNo0..1
UMM-CPaleoTemporalCoverage/ChronostratigraphicUnits/Detailed_ClassificationStringn/a
No

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.


Manual Review

  • Identify errors, discrepancies or omissions.
  • Proof all content for conciseness and readability.

XML Schema Validation Only

ARC Priority Matrix

Priority CategorizationJustification

Red = High Priority Finding

This element is categorized as highest priority when:

  • No Paleo Temporal Coverage is provided (for relevant collections).
  • Paleo Temporal Coverage is provided but it is not applicable for the dataset (i.e. data were collected after 0001-01-01).
  • The Paleo Temporal Coverage term does not align with the KMS.
    • The Paleo Temporal Coverage term does not exist in the KMS.
    • A term(s) is missing from the hierarchy.
    • A term(s) is placed in the incorrect position of the hierarchy (e.g. an Eon term is placed in the Epoch field).
  • The Paleo Temporal Coverage term is not appropriate for the dataset.

Yellow = Medium Priority Finding

This element is categorized as medium priority when:

  • A recommendation is made to add to an existing Paleo Temporal Coverage term in the metadata (i.e. to extend a keyword hierarchy down to a more detailed keyword).

Blue = Low Priority Finding

Not Applicable

Green = No Findings/Issues

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

ARC Automated Checks

ARC uses the pyQuARC library for automated metadata checks. Please see the pyQuARC GitHub for more information. 

Dialect Mappings

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

DIF 10

Paleo_Date_Time is an optional element, and should only be provided if it is applicable to the dataset. The Paleo_Date_Time element may not be repeated (Cardinality: 0..1). Please note: This element falls under Temporal_Coverage in DIF 10. 

UMM-C ElementDIF 10 PathTypeUsable Valid ValuesConstraintsRequired in DIF 10?CardinalityNotes
PaleoTemporalCoverage/PaleoStartDate

Temporal_Coverage/Paleo_DateTime/Paleo_Start_Date

String



No

0..1


PaleoTemporalCoverage/PaleoEndDateTemporal_Coverage/Paleo_DateTime/Paleo_Stop_Date
String


No0..1
PaleoTemporalCoverage/ChronostratigraphicUnit/EonTemporal_Coverage/Paleo_DateTime/Chronostratigraphic_Unit/EonStringGCMD Chronostratigraphic Unit Eon KeywordsKMS controlledYes, if applicable1Providing Chronostratigraphic Units are optional. If included, the Eon must be provided at a minimum.
PaleoTemporalCoverage/ChronostratigraphicUnit/EraTemporal_Coverage/Paleo_DateTime/Chronostratigraphic_Unit/EraStringGCMD Chronostratigraphic Unit Era KeywordsKMS controlledNo0..1
PaleoTemporalCoverage/ChronostratigraphicUnit/PeriodTemporal_Coverage/Paleo_DateTime/Chronostratigraphic_Unit/PeriodStringGCMD Chronostratigraphic Unit Period KeywordsKMS controlledNo0..1
PaleoTemporalCoverage/ChronostratigraphicUnit/EpochTemporal_Coverage/Paleo_DateTime/Chronostratigraphic_Unit/EpochStringGCMD Chronostratigraphic Unit Epoch KeywordsKMS controlledNo0..1
PaleoTemporalCoverage/ChronostratigraphicUnit/StageTemporal_Coverage/Paleo_DateTime/Chronostratigraphic_Unit/StageStringGCMD Chronostratigraphic Unit Stage KeywordsKMS controlledNo0..1
PaleoTemporalCoverage/ChronostratigraphicUnit/Detailed_ClassificationTemporal_Coverage/Paleo_DateTime/Chronostratigraphic_Unit/Detailed_ClassificationString

No0..1


Example Mapping

DIF 10

<Temporal_Coverage>
  <Paleo_DateTime>
    <Paleo_Start_Date>340 mya</Paleo_Start_Date>
    <Paleo_End_Date>338 mya</Paleo_Stop_Date>
    <Chronostratigraphic_Unit>
      <Eon>PHANEROZOIC</Eon>
      <Era>PALEOZOIC</Era>
      <Period>CARBONIFEROUS</Period>
      <Epoch>MISSISSIPPIAN</Epoch>
    </Chronostratigraphic_Unit>
  </Paleo_DateTime>
</Temporal_Coverage>

UMM

PaleoTemporalCoverage: [
  {
    Start Date: "340 mya",
    End Date: "338 mya",
    Chronostratigraphic Unit: [
      {	
        Eon: "PHANEROZOIC",
        Era: "PALEOZOIC",
	    Period: "CARBONIFEROUS",
	    Epoch: "MISSISSIPPIAN"
      }
    ]
  }
],

ECHO 10

Paleo Temporal Coverage does not map to ECHO 10.

UMM-C ElementECHO 10 PathTypeConstraintsRequired in ECHO10?CardinalityNotes
Paleo Temporal Coverage N/AN/A

N/A

N/AN/APaleo Temporal Coverage does not map to ECHO10.

ISO 19115-2 MENDS

Paleo Temporal Coverage currently does not map to ISO 19115-2 MENDS.

UMM-C Element

ISO 19115-2 MENDS Path

TypeNotes
Paleo Temporal Coverage 

N/A

N/A


N/A


Example Mapping

ISO 19115-2 MENDS

N/A

UMM

N/A



ISO 19115-2 SMAP

Paleo Temporal Coverage currently does not map to ISO 19115-2 SMAP.

UMM-C Element

ISO 19115-2 SMAP Path

TypeNotes
Paleo Temporal Coverage 

N/A

N/AN/A


Example Mapping

ISO 19115-2 SMAP

N/A

UMM

N/A



UMM Migration

None

History

UMM Versioning

VersionDateWhat Changed
1.15.512/3/2020No changes were made for Paleo Temporal Coverage during the transition from version 1.15.4 to 1.15.5
1.15.49/18/2020No changes were made for Paleo Temporal Coverage during the transition from version 1.15.3 to 1.15.4
1.15.37/1/2020No changes were made for Paleo Temporal Coverage during the transition from version 1.15.2 to 1.15.3
1.15.25/20/2020No changes were made for Paleo Temporal Coverage during the transition from version 1.15.1 to 1.15.2
1.15.13/25/2020No changes were made for Paleo Temporal Coverage during the transition from version 1.15.0 to 1.15.1
1.15.02/26/2020No changes were made for Paleo Temporal Coverage during the transition from version 1.14.0 to 1.15.0
1.14.010/21/2019No changes were made for Paleo Temporal Coverage during the transition from version 1.13.0 to 1.14.0
1.13.004/11/2019No changes were made for Paleo Temporal Coverage during the transition from version 1.12.0 to 1.13.0
1.12.001/22/2019No changes were made for Paleo Temporal Coverage during the transition from version 1.11.0 to 1.12.0.
1.11.011/28/2018No changes were made for Paleo Temporal Coverage during the transition from version 1.10.0 to 1.11.0.
1.10.005/02/2018No changes were made to Paleo Temporal Coverage in the transition from UMM Version 1.9.0 to 1.10.0.
1.9.0

ARC Documentation

VersionDateWhat ChangedAuthor
1.005/04/2018Recommendations/priority matrix transferred from internal ARC documentation to wiki spaceJeanne' le Roux



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