Tiling Identification System

Element Description

Note: This wiki page is a draft/ work in progress

The Tiling Identification System element defines a named two-dimensional tiling system related to the collection.

Best Practices

A tiling identification system is a defined 2-D grid which covers the surface of the Earth. An example of a tiling identification system is the Worldwide Reference System (WRS) where the surface of the Earth is split up into numbered paths and rows. The WRS-2 system is used to catalog Landsat data and is a popular way to search for Landsat data. Another example are the various MODIS grids, such as the MODIS Sinusoidal Tile Grid system which divides the Earth into 595 10 x 10 degree tiles.

There are several sub-elements used to specify a tiling identification system. If provided, all of the sub-fields are required:

Tiling Identification System Name: This field identifies the name of the tiling identification system. The name must be selected from a controlled enumeration list which includes the following values: CALIPSO, MISR, MODIS Tile EASE, MODIS Tile SIN, WELD Alaska Tile, WELD CONUS Tile, WRS-1, WRS-2

Coordinate 1/ Minimum Value: Identifies the minimum value for one dimention

Examples:

"Hurricane Katrina"

"Mineral Resources"

"BEDI"

"Modified SAVI"

"Discrete-Band Normalized Difference Water Index"

"Principal Component Analysis"

"Hydrology"

Element Specification

Providing Ancillary Keywords is optional. An unlimited amount of Ancillary Keywords may be listed (Cardinality: 0..*)

Model	Element	Type	Constraints	Required?	Cardinality
UMM-C	AncillaryKeywords	String	1 - 255 characters	No	0..*

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.

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

CMR Validation

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ARC Metadata QA/QC

ARC Priority Matrix

Priority Categorization	Justification
	This element is categorized as highest priority when: The ancillary keyword contains a spelling error The element is being used incorrectly
	This element is categorized as medium priority when: A recommendation is made to change an existing keyword The ancillary keyword is unnecessarily long The keyword doesn't seem appropriate or in any way related to the data set
	N/A
	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"

Dialect Mappings

DIF 9

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

DIF 10

DIF 10

Providing Ancillary_Keywords is optional. An unlimited amount of Ancillary_Keywords may be listed (Cardinality: 0..*)

Specification	Path	Type	Constraints	Required in DIF 10?	Cardinality
DIF 10	Ancillary_Keyword	String		No	0..*

Example Mapping

DIF 10

<Ancillary_Keyword>Water Resources</Ancillary_Keyword>
<Ancillary_Keyword>Energy and Mineral Resources</Ancillary_Keyword>
<Ancillary_Keyword>Hydrology</Ancillary_Keyword>

UMM

"AncillaryKeywords": [
  "Water Resources",
  "Energy and Mineral Resources",
  "Hydrology"
]

ECHO 10

ECHO 10

DataCenter/ContactGroup does not map to ECHO 10.

Specification	Path	Type	Constraints	Required in ECHO10?	Cardinality	Notes
ECHO 10	N/A	N/A	N/A	N/A	N/A	Ancillary Keywords does not map to ECHO10.

Example Mapping

ECHO 10

N/A

UMM

"AncillaryKeywords": [
  "Water Resources",
  "Energy and Mineral Resources",
  "Hydrology"
]

ISO 19115-2 MENDS

ISO 19115-2 MENDS

Providing Ancillary Keywords is optional. An unlimited amount of Ancillary Keywords may be listed (Cardinality: 0..*)

Specification	Path	Type	Notes
ISO 19115-2 MENDS	/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString	String	Maps to the UMM element Ancillary Keywords

Example Mapping

ISO 19115-2 MENDS

<gmi:MI_Metadata>
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>Water Resources</gco:CharacterString>
            <gco:CharacterString>Energy and Mineral Resources</gco:CharacterString>
            <gco:CharacterString>Hydrology</gco:CharacterString>
          </gmd:keyword>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
</gmi:MI_Metadata>

UMM

"AncillaryKeywords": [
  "Water Resources",
  "Energy and Mineral Resources",
  "Hydrology"
]

ISO 19115-2 SMAP

ISO 19115-2 SMAP

Providing Ancillary Keywords is optional. An unlimited amount of Ancillary Keywords may be listed (Cardinality: 0..*)

Specification	Path	Type	Notes
ISO 19115-2 SMAP	/gmd:DS_Series/gmd:seriesMetadata/gmi:MI_Metadata/gmd:identificationInfo/gmd:MD_DataIdentification/gmd:descriptiveKeywords/gmd:MD_Keywords/gmd:keyword/gco:CharacterString	String	Maps to the UMM element Ancillary Keywords

Example Mapping

ISO 19115-2 SMAP

<gmd:DS_Series>
<gmd:seriesMetadata>
<gmi:MI_Metadata>
  <gmd:identificationInfo>
    <gmd:MD_DataIdentification>
      <gmd:descriptiveKeywords>
        <gmd:MD_Keywords>
          <gmd:keyword>
            <gco:CharacterString>Water Resources</gco:CharacterString>
            <gco:CharacterString>Energy and Mineral Resources</gco:CharacterString>
            <gco:CharacterString>Hydrology</gco:CharacterString>
          </gmd:keyword>
        </gmd:MD_Keywords>
      </gmd:descriptiveKeywords>
    </gmd:MD_DataIdentification>
  </gmd:identificationInfo>
</gmi:MI_Metadata>
</gmd:seriesMetadata>
</gmd:DS_Series>

UMM

"AncillaryKeywords": [
  "Water Resources",
  "Energy and Mineral Resources",
  "Hydrology"
]

UMM Migration

UMM Version 1.9.0	Translation Direction	UMM Version 1.10.0

Future Mappings

ISO 19115-1

ISO 19115-1

Providing Ancillary Keywords is optional. An unlimited amount of Ancillary Keywords may be listed (Cardinality: 0..*)

Specification	Path	Type	Notes
ISO 19115-1	/mdb:MD_Metadata/mdb:identificationInfo/mri:MD_DataIdentification/mri:descriptiveKeywords/mri:MD_Keywords/mri:keyword/gco:CharacterString	String	Maps to the UMM element Ancillary Keywords

Example Mapping

ISO 19115-1

<mdb:MD_Metadata>
  <mdb:identificationInfo>
    <mri:MD_DataIdentification>
      </mri:descriptiveKeywords>
        <mri:MD_Keywords>
          <mri:keyword>
            <gco:CharacterString>Water Resources</gco:CharacterString>
            <gco:CharacterString>Energy and Mineral Resources</gco:CharacterString>
            <gco:CharacterString>Hydrology</gco:CharacterString>
          </mri:keyword>
        </mri:MD_Keywords>
      </mri:descriptiveKeywords>
    </mri:MD_DataIdentification>
  </mdb:identificationInfo>
</mdb:MD_Metadata>

UMM

"AncillaryKeywords": [
  "Water Resources",
  "Energy and Mineral Resources",
  "Hydrology"
]

History

UMM Versioning

Version	Date	What Changed
1.10.0	5/2/2018	No changes were made for Ancillary Keywords during the transition from version 1.9.0 to 1.10.0
1.9.0

ARC Documentation

Version	Date	What Changed	Author
1.0	10/12/18	Recommendations/priority matrix transferred from internal ARC documentation to wiki space	Jeanne' le Roux

Page tree

Tiling Identification System

Element Description

Best Practices

Element Specification

Metadata Validation and QA/QC

UMM Migration

History

UMM Versioning

ARC Documentation