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 five 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 dimension (e.g. horizontal) of the two dimensional tiling system.

Coordinate 1/ Maximum Value: Identifies the maximum value for one dimension (e.g. horizontal) of the two dimensional tiling system.

Coordinate 2/ Minimum Value: Identifies the minimum value for the other dimension (e.g. vertical) of the two dimensional tiling system.

Coordinate 2/ Maximum Value: Identifies the maximum value for the other dimension (e.g. vertical) of the two dimensional tiling system.

Examples:

TilingIdentificationSystemName: MISR

Coordinate1/MinimumValue: 1

Coordinate2/MaximumValue: 233

Coordinate2/MinimumValue: 1

Coordinate2/MaximumValue: 80

TilingIdentificationSystemName: MODIS Tile SIN

Coordinate1/MinimumValue: 0

Coordinate2/MaximumValue: 35

Coordinate2/MinimumValue: 0

Coordinate2/MaximumValue: 17

Element Specification

Providing a Tiling Identification System is optional. An unlimited amount of Tiling Identification Systems may be provided (Cardinality: 0..*)

Model	Element	Type	Usable Valid Values	Constraints	Required?	Cardinality
UMM-Common	TilingIdentificationSystem/TilingIdentificationSystemName	Enumeration	CALIPSO MISR MODIS Tile EASE MODIS Tile SIN WELD Alaska Tile WELD CONUS Tile WRS-1 WRS-2	n/a	Yes, if applicable	1
UMM-Common	TilingIdentificationSystem/Coordinate1/MinimumValue	Number	n/a	n/a	Yes, if applicable	1
UMM-Common	TilingIdentificationSystem/Coordinate1/MaximumValue	Number	n/a	n/a	Yes, if applicable	1
UMM-Common	TilingIdentificationSystem/Coordinate2/MinimumValue	Number	n/a	n/a	Yes, if applicable	1
UMM-Common	TilingIdentificationSystem/Coordinate2/MaximumValue	Number	n/a	n/a	Yes, if applicable	1

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 tiling identification system name does not match an enumeration value (CALIPSO, MISR, MODIS Tile EASE, MODIS Tile SIN, WELD Alaska Tile, WELD CONUS Tile, WRS-1, WRS-2) The tiling identification system provided is incorrect for the data set
	This element is categorized as medium priority when: The tiling identification system name does not match an enumeration value when the metadata format is anything other than UMM-JSON (this field is not controlled in other metadata dialects)
	This element is categorized as medium priority when: A recommendation is made to add a tiling identification system to the metadata when appropriate
	The element is provided, and follows all applicable criteria specified in the best practices section above.

ARC Automated Rules

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 a TwoD_Coordinate_System is optional. An unlimited amount of TwoD_Coordinate_Systems may be provided (Cardinality: 0..*)

Specification	Path	Type	Required in DIF 10?	Cardinality
DIF 10	/DIF/Spatial_Coverage/Spatial_Info/TwoD_Coordinate_System/TwoD_Coordinate_System_Name	String	Yes, if applicable	1
DIF 10	/DIF/Spatial_Coverage/Spatial_Info/TwoD_Coordinate_System/Coordinate1/Minimum_Value	Decimal	Yes, if applicable	1
DIF 10	/DIF/Spatial_Coverage/Spatial_Info/TwoD_Coordinate_System/Coordinate1/Maximum_Value	Decimal	Yes, if applicable	1
DIF 10	/DIF/Spatial_Coverage/Spatial_Info/TwoD_Coordinate_System/Coordinate2/Minimum_Value	Decimal	Yes, if applicable	1
DIF 10	/DIF/Spatial_Coverage/Spatial_Info/TwoD_Coordinate_System/Coordinate2/Maximum_Value	Decimal	Yes, if applicable	1

Example Mapping

DIF 10

<Spatial_Coverage>
  <Spatial_Info>
    <TwoD_Coordinate_System>
      <TwoD_Coordinate_System_Name>MODIS Tile EASE</TwoD_Coordinate_System_Name>
      <Coordinate1>
        <Minimum_Value>0</Minimum_Value>
        <Maximum_Value>18</Maximum_Value>
      </Coordinate1>
      <Coordinate2>
        <Minimum_Value>0</Minimum_Value>
        <Maximum_Value>38</Maximum_Value>
      </Coordinate2>
    </TwoD_Coordinate_System>
  </Spatial_Info>
</Spatial_Coverage>

UMM

"TilingIdentificationSystems": [
  {
    "TilingIdentificationSystemName": "MODIS Tile EASE",
    "Coordinate1": {
      "MinimumValue": 0.0,
      "MaximumValue": 18.0
    },
    "Coordinate2": {
      "MinimumValue": 0.0,
      "MaximumValue": 38.0
    }
  }
]

ECHO 10

ECHO 10

Providing a TwoDCoordinateSystem is optional. An unlimited amount of TwoDCoordinateSystems may be provided (Cardinality: 0..*)

Specification	Path	Type	Constraints	Required in ECHO10?
ECHO 10	/Collection/TwoDCoordinateSystems/TwoDCoordinateSystem/TwoDCoordinateSystemName	String	1 - 80 characters	Yes, if applicable
ECHO 10	/Collection/TwoDCoordinateSystems/TwoDCoordinateSystem/Coordinate1/MinimumValue	Decimal	n/a	Yes, if applicable
ECHO 10	/Collection/TwoDCoordinateSystems/TwoDCoordinateSystem/Coordinate1/MaximumValue	Decimal	n/a	Yes, if applicable
ECHO 10	/Collection/TwoDCoordinateSystems/TwoDCoordinateSystem/Coordinate2/MinimumValue	Decimal	n/a	Yes, if applicable
ECHO 10	/Collection/TwoDCoordinateSystems/TwoDCoordinateSystem/Coordinate2/MaximumValue	Decimal	n/a	Yes, if applicable

Example Mapping

ECHO 10

<TwoDCoordinateSystems>
  <TwoDCoordinateSystem>
    <TwoDCoordinateSystemName>MODIS Tile EASE</TwoDCoordinateSystemName>
    <Coordinate1>
      <MinimumValue>0</MinimumValue>
      <MaximumValue>18</MaximumValue>
    </Coordinate1>
    <Coordinate2>
      <MinimumValue>0</MinimumValue>
      <MaximumValue>38</MaximumValue>
    </Coordinate2>
  </TwoDCoordinateSystem>
</TwoDCoordinateSystems>

UMM

"TilingIdentificationSystems": [
  {
    "TilingIdentificationSystemName": "MODIS Tile EASE",
    "Coordinate1": {
      "MinimumValue": 0.0,
      "MaximumValue": 18.0
    },
    "Coordinate2": {
      "MinimumValue": 0.0,
      "MaximumValue": 38.0
    }
  }
]

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:extent/gmd:EX_Extent	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

"TilingIdentificationSystems": [
  {
    "TilingIdentificationSystemName": "MODIS Tile EASE",
    "Coordinate1": {
      "MinimumValue": 0.0,
      "MaximumValue": 18.0
    },
    "Coordinate2": {
      "MinimumValue": 0.0,
      "MaximumValue": 38.0
    }
  }
]

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

"TilingIdentificationSystems": [
  {
    "TilingIdentificationSystemName": "MODIS Tile EASE",
    "Coordinate1": {
      "MinimumValue": 0.0,
      "MaximumValue": 18.0
    },
    "Coordinate2": {
      "MinimumValue": 0.0,
      "MaximumValue": 38.0
    }
  }
]

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

"TilingIdentificationSystems": [
  {
    "TilingIdentificationSystemName": "MODIS Tile EASE",
    "Coordinate1": {
      "MinimumValue": 0.0,
      "MaximumValue": 18.0
    },
    "Coordinate2": {
      "MinimumValue": 0.0,
      "MaximumValue": 38.0
    }
  }
]

History

UMM Versioning

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

ARC Documentation

Version	Date	What Changed	Author
1.0	10/26/18	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